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EP-4456426-B1 - TOUCH CONTROL MODULE, TOUCH CONTROL PANEL AND HOME APPLIANCE THEREOF

EP4456426B1EP 4456426 B1EP4456426 B1EP 4456426B1EP-4456426-B1

Inventors

  • Zou, Qingqiang
  • ZANG, Ming
  • Bai, Xuemei
  • LI, JUN

Dates

Publication Date
20260506
Application Date
20240326

Claims (14)

  1. A touch control module, characterized by comprising: a circuit module (40), provided with a first surface, wherein the first surface is provided with elastic conductors (41); and a support (42), arranged on the first surface of the circuit module (40), wherein positioning portions (420) corresponding to the elastic conductors (41) are provided on the support (42); and the touch control module further comprises isolation members (5) with isolation portions (50), wherein the isolation members (5) are provided with limiting portions (51), the isolation members (5) are arranged on the positioning portions (420), the elastic conductors (41) at least partially extend into the positioning portions (420) and abut against inner surfaces of the isolation members (5), and the limiting portions (51) abut against edges of the positioning portions (420) to limit the isolation members (5) to the positioning portions (420), wherein the isolation members (5) are movably arranged on the positioning portions (420) in a direction perpendicular to a front cover plate (2), wherein the isolation members (5) further comprise walls (52) extending in an axial direction of the elastic conductors (41), and the limiting portions (51) extend radially outwards from the walls (52), characterized in that the walls (52) of the isolation members (5) are peripheral walls arranged on the isolation portions (50), such that the peripheral walls surround the elastic conductors (41) in a circumferential direction..
  2. The touch control module according to claim 1, characterized in that the isolation members (5) are formed in the shape of a hat, such that the walls (52) of the isolation members (5) are peripheral walls arranged on the isolation portions (50), such that the peripheral walls surround the elastic conductors (41) in a circumferential direction.., and the limiting portions (51) are of a brim structure extending radially outwards from edges of the isolation members (5).
  3. The touch control module according to claim 1, characterized in that the limiting portions (51) comprise a plurality of protrusions, and the protrusions are distributed on the walls (52).
  4. The touch control module according to claim 1, characterized in that the positioning portions (420) are of a through hole structure formed on the support (42).
  5. The touch control module according to claim 1, characterized in that the support (42) comprises a surface facing away from the circuit module (40), and after the circuit module (40) is fitted to the support (42), under an action of the elastic conductors (41), the isolation members (5) at least partially extend out of the surface by a specific height.
  6. The touch control module according to claim 5, characterized in that the height is 2 mm.
  7. The touch control module according to claim 1, characterized in that gaps are formed radially between the isolation members (5) and the positioning portions (420).
  8. The touch control module according to any one of claims 1 to 7, characterized in that a thickness of the isolation members (5) in an axial direction is in a range of 0.7 mm to 1.0 mm.
  9. The touch control module according to any one of claims 1 to 7, characterized in that the isolation members (5) are made of plastic.
  10. The touch control module according to claim 1, characterized by further comprising a display film (43), wherein the support (42) comprises light guide portions (421), and the display film (43) is arranged on a side of the support (42) close to a front cover plate (2) and covers the light guide portions (421).
  11. A touch control panel, characterized by comprising a front cover plate and the touch control module according to any one of claims 1 to 10, wherein the front cover plate (2) is arranged on a side of the support (42) away from the circuit module (40), and abuts against the isolation members (5).
  12. The touch control panel according to claim 11, characterized in that the front cover plate (2) comprises a main body portion (20), and the main body portion (20) is provided with touch key regions (21) corresponding to the elastic conductors (41).
  13. The touch control panel according to claim 11, characterized by further comprising a supporting portion (3), wherein the touch control module is arranged on the supporting portion (3).
  14. A home appliance, characterized by comprising the touch control panel according to any one of claims 11 to 13.

Description

TECHNICAL FIELD The present invention relates to the technical field of home appliances, and in particular, to a touch control module, a touch control panel and a home appliance thereof. BACKGROUND As technologies develop, a touch technology is used on increasing home appliances to realize human-machine interaction. In the prior art, a capacitive touch sensing technology may be used to operate and control home appliances. An implementation of the capacitive touch sensing technology is to use a spring as a capacitive trigger medium. When a user touches a corresponding button or icon on a touch control panel, the spring can detect the touch operation signal of the user on the touch control panel, thereby controlling a home appliance based on the operation signal. In the touch sensing solution using a spring, one end of the spring is usually arranged on a circuit board, and an other end is oriented toward and is in contact with a front cover plate. Since the spring is a conductor, which may result in a safety risk, to meet safety requirements, an isolation structure is usually arranged between the spring and the front cover plate to isolate the circuit board. In the prior art, common manners of realizing an isolation structure include wrapping a spring with a plastic member, embedding a plastic member into a center of a spring, and the like. However, the prior art does not take fitting stability of the plastic member and the spring into consideration, which leads to foreseeable risks. For example, the plastic member is separated from the spring and malfunctions, or a fitting risk of the spring and the plastic part is increased during fitting of the touch control panel. Such touch controls are disclosed for instance in EP 2 045 923 A1 or in DE 10 2018 002715 A1. SUMMARY To resolve the foregoing problems, the present invention provides an improved touch control module according to claim 1, touch control panel according to claim 11 and home appliance according to claim 14 thereof. Therefore it is disclosed: a touch control module, including: a circuit module, provided with a first surface, where the first surface is provided with elastic conductors; and a support, arranged on the first surface of the circuit module, where positioning portions corresponding to the elastic conductors are provided on the support. The touch control module further includes isolation members, where the isolation members are provided with limiting portions, the isolation members are arranged on the positioning portions, the elastic conductors at least partially extend into the positioning portions and abut against inner surfaces of the isolation members, and the limiting portions abut against edges of the positioning portions to limit the isolation members to the positioning portions. Through the above solution, the isolation members are limited to the positioning portions, and a stroke and a position of the isolation members are limited by using the support, so that a fitted structure is more stable. Further, by limiting the isolation members to the positioning portions, fitting and transportation of the touch control module are more convenient. Specifically, a supplier and a demander have different works. In some cases, the supplier only needs to provide the touch control module, and the demander needs to fit the touch control module to another component after obtaining the component. Therefore, limiting the isolation members to the positioning portions in the touch control module facilitates transportation of the touch control module, avoids loss of components, and facilitates fitting by the demander. In a possible embodiment, the positioning portions are of a through hole structure formed on the support. The through hole structure is provided on the touch control module, the isolation members are embedded therein in a free state, and the isolation members are limited to the support through an elastic compression force of the elastic conductors. In a possible embodiment, the isolation members are movably arranged on the positioning portions in a direction perpendicular to a front cover plate. In this way, the isolation members not only can be limited to the front cover plate and the support without separation, but also can elastically expand and contract in an axial direction of the positioning portions within a specific range. According to the present invention the isolation members further include walls extending in an axial direction of the elastic conductors, and the limiting portions extend radially outwards from the walls. Preferably, the isolation members are formed in the shape of a hat, and the limiting portions are of a brim structure extending radially outwards from edges of the isolation members. The structure in the shapes of the hat and the brim not only facilitates integral formation, but also facilitates setting of a position and an expansion and contraction stroke of the isolation members at the positioning portions.