Clothes dryer with humidity sensor

Abstract

The utility model provides a kind of clothes dryer with humidity sensor, comprising: cabinet;Inner bucket, rotatably arranged in the cabinet;Humidity sensor, set on the inner bucket circumferential inner wall;Control circuit board;Arc electric contact component, according to the rotating direction of the inner bucket, it is circumferentially arranged on the circumferential outer wall of the axial end of the inner bucket, and it is electrically connected with the humidity sensor;Elastic electric contact component, one end is fixedly arranged on the cabinet, and it is connected with the control circuit board;The other end is elastically contacted with the arc electric contact component.The utility model constitutes closed detection loop by humidity sensor, arc electric contact component, elastic electric contact component and control circuit board, and humidity sensor at least periodically contacts inner bucket load with inner bucket circumferential movement, ensure that clothes dryer can accurately obtain the humidity of inner bucket load.

Description

Technical Field

[0001] This utility model relates to the field of clothes dryer technology, specifically to a clothes dryer with a humidity sensor. Background Technology

[0002] In the dryer industry, accurately determining the drying humidity of the inner drum load, including clothes, is crucial for improving user experience and energy saving.

[0003] Currently, most dryers rely on humidity sensors to determine the degree of drying, but almost all products place the humidity sensor on the front side of the inner drum end cap. This installation method has a certain positive effect when drying regular clothes, but when dealing with small loads (few clothes in the inner drum), shoes, down jackets, or other special inner drum loads, the humidity sensor is prone to not being able to contact the inner drum load, leading to inaccurate humidity judgment. This not only results in the inner drum load not being fully dried or being over-dried, affecting the wearing experience and lifespan of the clothes, but also causes energy waste. Utility Model Content

[0004] The technical problem to be solved by this invention is to accurately detect the humidity of the inner tank load.

[0005] To solve the above-mentioned technical problems, a clothes dryer with a humidity sensor is provided, characterized in that it includes:

[0006] Box;

[0007] The inner tub is rotatably disposed within the box body;

[0008] A humidity sensor is installed on the inner wall of the inner tub.

[0009] Control circuit board;

[0010] An arc-shaped electrical contact assembly is arranged around the circumferential outer wall of the axial end of the inner tub in accordance with the rotation direction of the inner tub, and is electrically connected to the humidity sensor.

[0011] One end of the elastic electrical contact assembly is fixedly mounted on the housing and connected to the control circuit board; the other end is in elastic contact with the arc-shaped electrical contact assembly.

[0012] Furthermore, the humidity sensor is mounted in the lifting ribs of the inner barrel.

[0013] Furthermore, the humidity sensor includes two sensor probes, and there are two sets of both the arc-shaped electrical contact assembly and the elastic electrical contact assembly, with each set of the arc-shaped electrical contact assembly and the elastic electrical contact assembly corresponding to one sensor probe.

[0014] Furthermore, the arc-shaped electrical contact assembly has a complete ring structure.

[0015] Furthermore, the arc-shaped electrical contact assembly has an arc-shaped segment structure and is assembled such that when the humidity sensor rotates to the lowest point of the inner barrel, the arc-shaped electrical contact assembly is in contact with the elastic electrical contact assembly.

[0016] Furthermore, the projection of a ray from the rotation center of the humidity sensor to the surface of the arc-shaped electrical contact assembly intersects with the arc-shaped electrical contact assembly.

[0017] Furthermore, the box body is provided with two sets of support rollers, which respectively roll in contact with the outer ends of the inner tub to support the rotation of the inner tub.

[0018] Furthermore, the inner tub has grooves at both ends with a diameter smaller than the diameter of the middle part of the inner tub, and the two sets of supporting rollers are respectively supported in the two grooves.

[0019] Furthermore, the arc-shaped electrical contact assembly is disposed in the groove at the front end of the inner barrel.

[0020] Furthermore, the elastic electrical contact assembly is positioned close to the support roller located on the front side of the housing.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention comprises a humidity sensor, an arc-shaped electrical contact component, an elastic electrical contact component, and a control circuit board forming a closed detection circuit; the humidity sensor contacts the inner drum load at least periodically as the inner drum moves in a circular motion, ensuring that the dryer can accurately determine the humidity of the inner drum load. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the clothes dryer disclosed in an embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the overall structure of the clothes dryer disclosed in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the outer surface structure of the inner barrel disclosed in an embodiment of the present utility model, showing the positional relationship between the support plate and the support rollers;

[0026] Figure 4 This is a partial cross-sectional view of the inner tub disclosed in an embodiment of the present utility model, showing the installation position of the humidity sensor;

[0027] Figure 5This is a partial structural schematic diagram of an embodiment of the present utility model, showing the connection relationship between the humidity sensor, the arc-shaped electrical contact assembly, and the elastic electrical contact assembly;

[0028] Figure 6 This is a partial structural cross-sectional view of an embodiment of the present utility model, showing the connection relationship between the humidity sensor, the arc-shaped electrical contact assembly, and the elastic electrical contact assembly;

[0029] Figure 7 This is a partial enlarged view of the structure of the arc-shaped electrical contact assembly disclosed in the embodiment of the present utility model;

[0030] Figure 8 This is a partial structural cross-sectional view of an embodiment of the present invention, showing a schematic diagram of the structure of the elastic electrical contact assembly.

[0031] In the picture:

[0032] 100. Box body;

[0033] 200. Inner tub; 210. Lifting ribs; 220. Support plate; 230. Support rollers;

[0034] 310. Control circuit board;

[0035] 320. Humidity sensor; 321. First probe; 322. Second probe;

[0036] 330. Arc-shaped electrical contact assembly; 331. First arc-shaped electrical contact element; 332. Second arc-shaped electrical contact element;

[0037] 340. Flexible electrical contact assembly; 341. First flexible electrical contact; 342. Second flexible electrical contact. Detailed Implementation

[0038] To make the technical solutions and effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0039] The present invention aims to provide a clothes dryer with a humidity sensor to solve the problem that existing clothes dryers cannot accurately detect the humidity of the inner drum load when drying special inner drum loads such as small loads, because the humidity sensor cannot contact the inner drum load.

[0040] Please see Figure 1-8The dryer mainly includes a housing 100, an inner tub 200, a control circuit board 310, a humidity sensor 320, an arc-shaped electrical contact assembly 330, and a flexible electrical contact assembly 340. The inner tub 200 is rotatably mounted within the housing 100; the humidity sensor 320 is mounted on the circumferential inner wall of the inner tub 200; the arc-shaped electrical contact assembly 330 is arranged around the circumferential outer wall of the axial end of the inner tub 200 in the direction of rotation of the inner tub 200, and is electrically connected to the humidity sensor 320, such as through a signal line; one end of the flexible electrical contact assembly 340 is fixedly mounted on the housing 100 and connected to the control circuit board 310; the other end is in elastic contact with the arc-shaped electrical contact assembly 330.

[0041] The humidity sensor 320 is installed on the circumferential inner wall of the inner tub 200. During the drying process, the inner tub 200 rotates continuously. When the temperature sensor 320 rotates to the lowest position of the inner tub 200, due to the effect of gravity, regardless of the type of load on the inner tub, the load on the inner tub will be at the lowest position in the inner tub 200. At this time, the temperature sensor 320 is in contact with the load on the inner tub, thereby accurately detecting the humidity of the load on the inner tub.

[0042] In addition, the elastic electrical contact component 340 is in elastic contact with the arc-shaped electrical contact component 330. The elastic electrical contact component 340 can be composed of an elastic metal sheet and gold-plated contacts to ensure the stability of instantaneous contact signal transmission. The elastic electrical contact component 340 can ensure that the inner tub 200 is in contact with the arc-shaped electrical contact component 330 at least for a part of the time during rotation, and feeds back the humidity signal detected by the humidity sensor 320 to the control circuit board 310. The control circuit board 310 can usually be the main control board of the dryer, so that the dryer can accurately know the humidity of the inner tub load.

[0043] In this embodiment, the humidity sensor 320 can be installed in the lifting rib 210 of the inner tub 200. The purpose is to increase the probability of contact with the load of the inner tub and to facilitate the installation of the humidity sensor 320.

[0044] Furthermore, the specific type of humidity sensor can be selected based on existing technology, and the number of humidity sensors used in the product can also be set according to actual needs; a larger number of humidity sensors can ensure the accuracy of humidity detection. In this embodiment, the humidity sensor 320 may include two sensor probes, such as... Figure 5The first probe 321 and the second probe 322 in the dryer together form the humidity sensor 320. In this case, the arc-shaped electrical contact component 330 and the elastic electrical contact component 340 in the dryer are also in two sets, and each set of arc-shaped electrical contact component 330 and elastic electrical contact component 340 corresponds to one sensor probe. That is to say, the humidity detection signal of each sensor probe is transmitted to the aforementioned control circuit board through its corresponding set of arc-shaped electrical contact component 330 and elastic electrical contact component 340.

[0045] As shown in the figure, the arc-shaped electrical contact assembly 330 includes a first arc-shaped electrical contact 331 and a second arc-shaped electrical contact 332 arranged side by side; the elastic electrical contact assembly 340 includes a first elastic electrical contact 341 and a second elastic electrical contact 342. Each set of arc-shaped electrical contact assemblies 330 and elastic electrical contact assemblies 340 corresponds to one sensor probe.

[0046] As an optional implementation, the arc-shaped electrical contact assembly 330 can have a complete annular structure, that is, the arc-shaped electrical contact assembly 330 forms a complete ring around the outer periphery of the inner barrel 200, and the elastic electrical contact assembly 340 is always in contact with the arc-shaped electrical contact assembly 330 during the rotation of the inner barrel 200.

[0047] As an alternative implementation, to reduce material usage and lower costs, the arc-shaped electrical contact component 330 can be an arc-shaped segment structure, and assembled such that when the humidity sensor 320 rotates to the lowest point of the inner tub 200, the arc-shaped electrical contact component 330 and the elastic electrical contact component 340 are in contact. In this embodiment, the arc-shaped electrical contact component 330 can be an arc segment with a small central angle, such as an arc segment with a central angle of 60°. It is known to those skilled in the art that when the humidity sensor 320 rotates to the lowest point of the inner tub 200, the load in the inner tub 200 will also be at the lowest point of the inner tub 200 due to gravity. At this time, the humidity sensor 320 can detect the humidity signal of the load, and since the arc-shaped electrical contact component 330 and the elastic electrical contact component 340 are in contact, the humidity signal detected by the humidity sensor 320 can be transmitted from the arc-shaped electrical contact component 330 to the elastic electrical contact component 340.

[0048] To reduce the signal transmission distance between the humidity sensor 320 and the arc-shaped electrical contact assembly 330, this embodiment can be configured such that the projection of a ray from the rotation center of the humidity sensor 320 onto the surface of the arc-shaped electrical contact assembly 330 intersects with the arc-shaped electrical contact assembly 330. For example, when the humidity sensor 320 rotates to the lowest point of the inner tub 200, a point in the arc-shaped electrical contact assembly 330 is also at its lowest possible rotation point.

[0049] In actual products, refer to Figure 3 The dryer housing 100 can be equipped with two sets of support rollers 230. These two sets of support rollers 230 roll in contact with the outer ends of the inner tub 200 to support its rotation. For example, the housing 100 may have support plates 220 corresponding to both ends of the inner tub 200. Two sets of support rollers 230 are positioned opposite each other at the bottom of the support plates 220, resulting in four symmetrically arranged support rollers 230. The support rollers 230 are bolted to the support plates 220. The two sets of support rollers 230 roll in contact with the outer ends of the inner tub 200 to support its rotation.

[0050] Reference Figure 3 In this embodiment, the two ends of the inner tub 200 can each have a groove with a diameter smaller than the diameter of the middle part of the inner tub 200, and the two sets of support rollers 230 are respectively supported in the two grooves. The presence of the two grooves can improve the structural strength of the inner tub 200. At the same time, the cooperation between the two sets of support rollers 230 and the grooves can also limit the axial position of the inner tub 200.

[0051] To save on the material usage of the arc-shaped electrical contact component 330, the arc-shaped electrical contact component 330 can be placed in the groove at the front end of the inner barrel 200. Furthermore, to ensure that the arc-shaped electrical contact component 330 and the elastic electrical contact component 340 can smoothly contact each other during the rotation of the inner barrel 200, the elastic electrical contact component 340 can be placed close to the support roller 230 located on the front side of the box 100.

[0052] For example, two sets of support rollers 230 are provided at the lower part of the support plate 220 on the front side of the inner tub 200. At the same time, one end of the first elastic electrical contact 341 and the second elastic electrical contact 342 are fixed to the lower part of the support plate 220 on the front side of the inner tub 200, and the other end elastically contacts the arc-shaped electrical contact assembly 330 provided in the groove at the front end of the inner tub 200.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clothes dryer with a humidity sensor, characterized by, include: Box (100); The inner tub (200) is rotatably disposed within the housing (100); A humidity sensor (320) is disposed on the circumferential inner wall of the inner tub (200); Control circuit board (310); An arc-shaped electrical contact assembly (330) is arranged around the circumferential outer wall of the axial end of the inner barrel (200) in accordance with the rotation direction of the inner barrel (200) and is electrically connected to the humidity sensor (320). The elastic electrical contact assembly (340) has one end fixedly mounted on the housing (100) and connected to the control circuit board (310); the other end is in elastic contact with the arc-shaped electrical contact assembly (330).

2. The clothes dryer with a humidity sensor according to claim 1, wherein, The humidity sensor (320) is mounted in the lifting rib (210) of the inner barrel (200).

3. The clothes dryer with a humidity sensor according to claim 1, wherein, The humidity sensor (320) includes two sensor probes. The arc-shaped electrical contact assembly (330) and the elastic electrical contact assembly (340) are both in two sets, and each set of the arc-shaped electrical contact assembly (330) and the elastic electrical contact assembly (340) corresponds to one sensor probe.

4. The clothes dryer with a humidity sensor according to claim 1, wherein, The arc-shaped electrical contact assembly (330) has a complete ring structure.

5. The clothes dryer with a humidity sensor according to claim 1, wherein, The arc-shaped electrical contact assembly (330) has an arc-shaped segment structure and is assembled such that when the humidity sensor (320) rotates to the lowest point of the inner barrel (200), the arc-shaped electrical contact assembly (330) is in contact with the elastic electrical contact assembly (340).

6. The clothes dryer with a humidity sensor according to claim 5, wherein, A ray pointing from the rotation center of the humidity sensor (320) to the humidity sensor (320) intersects the arc-shaped electrical contact assembly (330) on the surface where the arc-shaped electrical contact assembly (330) is located.

7. The laundry dryer with humidity sensor according to any of the preceding claims, characterized in that, The box (100) is provided with two sets of support rollers (230), and the two sets of support rollers (230) respectively roll in contact with the outer sides of both ends of the inner barrel (200) to support the rotation of the inner barrel (200).

8. The clothes dryer with a humidity sensor according to claim 7, wherein, The inner barrel (200) has grooves at both ends with a diameter smaller than the diameter of the middle part of the inner barrel (200), and the two sets of support rollers (230) are respectively supported in the two grooves.

9. The clothes dryer with a humidity sensor according to claim 8, wherein, The arc-shaped electrical contact assembly (330) is disposed in the groove at the front end of the inner barrel (200).

10. The clothes dryer with a humidity sensor according to claim 9, wherein, The flexible electrical contact assembly (340) is positioned close to the support roller (230) located on the front side of the housing (100).

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