CN221573767U - Key assembly structure, display device and electric appliance - Google Patents

Abstract

The application relates to the technical field of displays, and discloses a key assembly structure, a display device and an electric appliance. The key assembly structure comprises a main body part and a key assembly, wherein the main body part is provided with a positioning channel, the key assembly is provided with a first positioning unit, or the main body part is provided with a first positioning unit, the key assembly is provided with a positioning channel, and the first positioning unit is configured to be clamped with the positioning channel and slide along the extending direction of the positioning channel. Therefore, the quick assembly disassembly between the key assembly and the main body part is realized, the repairing step of the key assembly is simplified, and the key assembly is convenient to maintain.

Description

Key assembly structure, display device and electric appliance

Technical Field

The application relates to the technical field of displays, in particular to a key assembly structure, a display device and an electric appliance.

Background

The display with the key function is usually formed by assembling the circuit board and the key skeleton, then fixing the circuit board and the key skeleton on the inner side of the aluminum front frame through the fastener, and enabling the key cap of the key skeleton to penetrate out of the key hole of the aluminum front frame so as to enable a user to finish key operation. As shown in fig. 1 and 2, when the key is abnormal and needs to be maintained, the display is required to be firstly laid on the horizontal table surface, and the fasteners of the rear cover and the key skeleton are detached in sequence, so that the key, the circuit board and the like can be maintained and replaced, and the repairing step of the key is complex. Therefore, a display scheme of installing the key structure on the outer side of the aluminum front frame is derived, but the existing scheme of externally arranging the key structure lacks an alignment structure, so that the key is inconvenient to assemble and disassemble.

Disclosure of utility model

The application aims to provide a key assembly structure, a display device and an electric appliance, which realize quick assembly and disassembly between a key assembly and a main body part through pre-positioning and sliding installation between a first positioning unit and a positioning channel, simplify the repairing step of the key assembly and facilitate the maintenance of the key assembly.

The embodiment of the application provides a key assembly structure, which comprises:

The key assembly comprises a main body part and a key assembly, wherein the main body part is provided with a positioning channel, the key assembly is provided with a first positioning unit, or the main body part is provided with a first positioning unit, and the key assembly is provided with a positioning channel, wherein the first positioning unit is configured to be clamped with the positioning channel and slide along the extending direction of the positioning channel.

In some embodiments, the first positioning unit comprises:

the connecting part is connected with the key assembly;

The stop part is connected with one side of the connecting part, which is far away from the key assembly;

The main body part is provided with a first connecting piece, the positioning channel is formed in the first connecting piece, and the connecting part penetrates through the positioning channel, so that the stop part is abutted to one side, far away from the key assembly, of the first connecting piece.

In some embodiments, the first positioning unit comprises:

A connecting portion connected to the main body portion;

a stop part connected with one side of the connecting part far away from the main body part;

The key assembly is internally provided with a stop cavity, the positioning channel is formed on one side of the key assembly, which faces the main body part, and is communicated with the stop cavity, and the connecting part penetrates through the positioning channel so that the stop part is abutted to the cavity wall surface of the stop cavity.

In some embodiments, the key assembly includes:

a key support constructed with a through hole;

the touch control plate is connected with the key support;

The key cap is connected to the key support, penetrates through the through hole and is configured to contact the touch pad under the action of external force and be far away from the touch pad after the external force is removed;

The main body part is provided with an assembly groove, the touch pad is accommodated in the assembly groove, and the key support seals the notch of the assembly groove.

In some embodiments, the key holder is bent toward the main body portion and forms a fitting portion configured with a first connection hole and the main body portion is configured with a second connection hole, the first and second connection holes being adapted to be connected by a fastener.

In some embodiments, a second positioning unit is further configured on a side, close to the main body, of the key support, the second positioning unit is located at a position, away from the assembly portion, of the key support, a positioning groove with a notch facing away from the assembly portion is configured on the second positioning unit, and a second connecting piece is configured on the main body, and the second connecting piece is suitable for being clamped in the positioning groove.

In some embodiments, a first connecting post is configured on a side of the key support facing the touch pad, a third connecting hole is configured on the first connecting post, a fourth connecting hole is configured on the touch pad, and the third connecting hole and the fourth connecting hole are suitable for being connected through a fastener.

In some embodiments, the key cap is configured with a mounting portion, the mounting portion is configured with a mounting hole, a second connection post is configured on one side of the key support, which faces the touch pad, and the mounting hole is sleeved on the second connection post.

The embodiment of the application also provides a display device which comprises the key assembly structure.

The embodiment of the application also provides an electric appliance which comprises the key assembly structure or the display device.

According to the key assembly structure provided by the embodiment of the application, through the pre-positioning between the first positioning unit and the positioning channel and the sliding installation of the first positioning unit along the positioning channel, the rapid positioning installation of the key assembly is realized, the installation efficiency of the key assembly is improved, and meanwhile, the key assembly is convenient to disassemble. Therefore, the disassembly efficiency of the key assembly can be improved, the repairing step of the key assembly is simplified, and the overhauling cost of the key assembly is reduced.

Drawings

The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is an exploded view of a conventional key assembly structure.

Fig. 2 is a schematic partial structure of a conventional key assembly structure assembled on a display device.

Fig. 3 is a schematic diagram of an exploded structure of a key assembly structure according to an embodiment of the present application.

Fig. 4 is a schematic diagram of an exploded structure of a key assembly structure according to an embodiment of the present application.

Fig. 5 is an exploded view of a key assembly according to an embodiment of the present application.

Fig. 6 is a rear view of a key assembly structure according to an embodiment of the present application.

Fig. 7 is one of sectional views of a key assembly structure according to an embodiment of the present application.

Fig. 8 is a second cross-sectional view of a key assembly structure according to an embodiment of the present application.

Fig. 9 is a third cross-sectional view of the key assembly structure according to the embodiment of the present application.

Reference numerals:

10-main body part, 110-first connecting piece, 120-fitting groove, 130-second connecting hole, 140-second connecting piece, 20-button subassembly, 210-button support, 220-touch pad, 230-key cap, 240-through hole, 250-fitting part, 260-first connecting hole, 270-first connecting column, 280-third connecting hole, 290-fourth connecting hole, 2100-mounting part, 2110-mounting hole, 2120-second connecting column, 30-positioning channel, 40-first positioning unit, 410-connecting part, 420-stop part, 50-stop cavity, 60-second positioning unit, 610-positioning groove, 710-aluminum front frame, 720-button skeleton, 730-circuit board, 740-button hole, 750-back cover.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.

In the description of the present application, 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", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Specifically, referring to fig. 3 to 9, an embodiment of the present application provides a key assembly structure, which includes a main body 10 and a key assembly 20, wherein the main body 10 is configured with a positioning channel 30, the key assembly 20 is configured with a first positioning unit 40, or the main body 10 is configured with the first positioning unit 40, the key assembly 20 is configured with the positioning channel 30, and the first positioning unit 40 is configured to be clamped with the positioning channel 30 and slide along an extending direction of the positioning channel 30. Thus, the key assembly 20 can be pre-positioned and guided to be mounted to the main body 10 by the cooperation of the first positioning unit 40 and the positioning channel 30.

In this embodiment, through the pre-positioning between the first positioning unit 40 and the positioning channel 30 and the sliding installation of the first positioning unit 40 along the positioning channel 30, the quick positioning installation of the key assembly 20 is realized, the installation efficiency of the key assembly 20 is improved, and the key assembly 20 is convenient to disassemble. Therefore, the disassembly efficiency of the key assembly 20 can be improved, the repairing step of the key assembly 20 is simplified, and the maintenance cost of the key assembly 20 is reduced.

For example, the positioning channel 30 may be formed on the main body 10, and the first positioning unit 40 may be formed on the key assembly 20. The key assembly 20 is assembled to the main body 10 by clamping the first positioning unit 40 of the key assembly 20 to the positioning channel 30 of the main body 10 and sliding the first positioning unit 40 along the positioning channel 30.

For example, the first positioning unit 40 may be constructed on the main body part 10, and the positioning channel 30 may be constructed on the key assembly 20. The key assembly 20 is assembled to the main body 10 by engaging the positioning channel 30 of the key assembly 20 with the first positioning unit 40 of the main body 10 and sliding the first positioning unit 40 along the positioning channel 30.

It will be appreciated that the positioning channel 30 has a certain length, so that the first positioning unit 40 can be not only clamped to the positioning channel 30, but also slide along the positioning channel 30. The first positioning unit 40 is thus pre-positioned and guided to be mounted based on the positioning channel 30, and the assembly between the key assembly 20 and the main body 10 is achieved.

The positioning channels 30 may be provided in plurality, and the positioning channels 30 are provided at intervals along the sliding assembly direction. The number of first positioning units 40 corresponds to the number of positioning channels 30. For example, if two positioning channels 30 are provided, two first positioning units 40 are provided correspondingly. Four positioning channels 30 are provided, and four first positioning units 40 are correspondingly provided.

The main body 10 has a structure such as a housing and a frame of an electric appliance capable of key adjustment.

In some embodiments, the body portion 10 may be provided as a front frame of the display device. The key assembly 20 is mounted to the front frame so that a user touches keys on the front side of the display device for adjusting volume, channel, brightness, contrast, etc.

For example, as shown in fig. 3 and 4, the key assembly 20 may be disposed at a position of the front frame near the lower side. Based on the fact that the front frame of the display device has a wider distance on the lower side, the key assembly 20 is installed at the position, close to the lower side, of the front frame, assembly and disassembly of the key assembly 20 are facilitated, and meanwhile key operation is facilitated for a user.

For example, the key assembly 20 may be disposed at a position of the front frame near the left or right side. At this time, an installation region having a certain width may be formed at the left or right side of the front frame, and the key assembly 20 may be installed at the installation region, thereby realizing the assembly between the key assembly 20 and the front frame. To facilitate the key operation by the user, the key assembly 20 may be installed at a position near the lower side of the installation area.

For example, the key assembly 20 may be disposed at a position of the front frame near the upper side. At this time, a mounting region having a certain width may be formed on the upper side of the front frame, and the key assembly 20 may be mounted on the mounting region, thereby realizing the assembly between the key assembly 20 and the front frame. Based on the key assembly 20 being installed at the position of the border near the upper side, the key assembly 20 is located at a certain height, so that the misoperation of volume, channel, brightness, contrast and the like caused by the mistaken touch of the key assembly 20 can be avoided.

In some embodiments, the body portion 10 may also be provided as a rear housing of the display device. The key assembly 20 is mounted to the rear case so that a user touches the key at the rear side of the display device to achieve hidden key adjustment. The key assembly 20 may be installed at a position of the rear case near the lower side, the left side, the right side or the upper side based on the installation position of the rear case without limitation, and the selection of the installation position may be made based on the specific display device model or user preference.

In some embodiments, the main body 10 may also be configured as a face frame of an indoor unit of an air conditioner. The key assembly 20 is provided on the face frame, and can perform temperature adjustment, mode adjustment, switching control and the like on the air conditioner.

In some embodiments, the main body portion 10 may also be provided as a housing of a fan machine. The key assembly 20 is arranged on the shell, and can adjust gears, switch control and the like of the fan.

In some embodiments, the body portion 10 may also be provided as a door assembly of a refrigerator. The key assembly 20 is provided to the door assembly, and can perform temperature adjustment, mode adjustment, switching control, etc. for the refrigerator.

In some embodiments, as shown in fig. 5 and 7, the first positioning unit 40 includes a connection portion 410 and a stop portion 420. The connection portion 410 is connected to the key assembly 20. The stop portion 420 is connected to a side of the connecting portion 410 away from the key assembly 20. The main body 10 is configured with a first connecting piece 110, the positioning channel 30 is configured on the first connecting piece 110, and the connecting portion 410 is disposed through the positioning channel 30, so that the stop portion 420 abuts against a side of the first connecting piece 110 away from the key assembly 20.

The first positioning unit 40 is disposed on the key assembly 20, and the positioning channel 30 is formed on the first connecting member 110 of the main body 10. When the key assembly 20 is connected with the main body 10, the first positioning unit 40 on the key assembly 20 is aligned with the positioning channel 30, and then the key assembly 20 is pressed to clamp the first positioning unit 40 into the positioning channel 30. Pushing the key assembly 20 again slides the first positioning unit 40 along the positioning channel 30, thereby achieving the pre-positioning and guiding installation of the key assembly 20.

It is understood that the first positioning unit 40 formed of the connection portion 410 and the stopper portion 420 has a substantially L-shape. When the main body 10 is assembled with the key assembly 20, the connecting portion 410 and the stop portion 420 penetrate through the positioning channel 30, so that the stop portion 420 is located at a side of the first connecting member 110 away from the key assembly 20. And then the key assembly 20 is pushed along the extending direction of the stop part 420, so that the key assembly 20 slides along the positioning channel 30. At this time, the stop portion 420 may form an abutment with a side of the first connector 110 away from the key assembly 20. Therefore, the first connector 110 can be clamped by the key assembly 20 and the stop portion 420, so as to realize the locking and fixing of the key assembly 20 and the limit stop.

Wherein, the connecting portion 410 and the stopping portion 420 may be integrally formed. The first positioning unit 40 may be integrally formed with the key assembly 20.

In other embodiments of the present application, as shown in fig. 8, the first positioning unit 40 includes a connection portion 410 and a stop portion 420. The connection portion 410 is connected to the main body portion 10. The stopper 420 is connected to a side of the connecting portion 410 remote from the main body 10. The key assembly 20 is internally provided with a stop cavity 50, the positioning channel 30 is configured at one side of the key assembly 20 facing the main body 10, the positioning channel 30 is communicated with the stop cavity 50, and the connecting portion 410 is arranged through the positioning channel 30, so that the stop portion 420 is abutted against the cavity wall surface of the stop cavity 50.

The first positioning unit 40 is arranged on the main body 10, and the stop cavity 50 and the positioning channel 30 communicated with the stop cavity 50 are constructed in the key assembly 20. When the key assembly 20 is connected with the main body 10, the positioning channel 30 on the key assembly 20 is aligned with the first positioning unit 40, then the key assembly 20 is pressed to clamp the positioning channel 30 to the first positioning unit 40, and then the key assembly 20 is pushed to slide the first positioning unit 40 along the positioning channel 30, and the first positioning unit 40 can be clamped in the stop cavity 50, so that the pre-positioning and guiding installation of the key assembly 20 are realized.

It is understood that the first positioning unit 40 formed of the connection portion 410 and the stopper portion 420 has a substantially L-shape. When the main body 10 is assembled with the key assembly 20, the connecting portion 410 and the stopping portion 420 penetrate through the positioning channel 30 and are located in the stopping cavity 50. And then pushes the key assembly 20 in a direction opposite to the extending direction of the stopper 420, so that the key assembly 20 slides along the positioning channel 30. At this time, the stopper 420 may abut against the cavity wall surface of the stopper cavity 50. Therefore, the portion of the key assembly 20 located on the wall surface of the stop cavity 50 can be clamped by the main body 10 and the stop portion 420, so that the key assembly 20 can be clamped and fixed and limited to stop.

Wherein, the connecting portion 410 and the stopping portion 420 may be integrally formed. The first positioning unit 40 may be integrally formed with the main body 10.

Referring to fig. 5 and 6, the key assembly 20 includes a key frame 210, a touch pad 220, and a key cap 230. The key holder 210 is constructed with a through hole 240. The touch pad 220 is connected to the key holder 210. The key cap 230 is connected to the key support 210 and penetrates through the through hole 240. The key cap 230 is configured to contact the touch pad 220 under an external force and to be away from the touch pad 220 after the external force is removed. The main body 10 is configured with an assembly slot 120, the touch pad 220 is accommodated in the assembly slot 120, and the key support 210 closes the notch of the assembly slot 120.

The side of the key holder 210 facing the user is defined as the outer side, and the side of the key holder 210 facing the touch pad 220 is defined as the inner side. A portion of the key cap 230 is disposed through the through hole 240 and located at the outer side of the key support 210, and another portion of the key cap 230 is located at the inner side of the key support 210, for triggering the touch pad 220. After the user presses the key cap 230, the key cap 230 may contact the touch pad 220, so that the touch pad 220 outputs a control signal to the central control mechanism to realize adjustment. The key cap 230 has a certain self-recovery function, and when the user removes the external force from the key cap 230, the key cap 230 can be far away from the touch pad 220 to prevent the mis-adjustment.

It is appreciated that the key cap 230 may have some elasticity to enable the key cap 230 to self-recover between the first position and the second position. In the first position, the key cap 230 contacts the touch pad 220 to achieve key adjustment. In the second position, the key cap 230 is away from the touch pad 220 to prevent misadjustment. The key cap 230 moves from the second position to the first position by an external force, and the key cap 230 moves from the first position to the second position by self elasticity.

The key cap 230 is assembled based on the key assembly 20 directly constructing the through-hole 240 on the key holder 210 thereof, thereby eliminating the need to open a hole in the body part 10 to pass through the key cap 230, thereby reducing the components involved in the tolerance chain. The assembly gap of the key cap 230 has larger error caused by overlapping of tolerance such as the hole of the main body part 10 and the press riveting stud is avoided.

Wherein the key cap 230 is thermally fused or ultrasonically welded to the key holder 210. Therefore, the key cap 230 and the key support 210 are integrally and stably connected, the key assembly 20 is convenient to disassemble and maintain, the production efficiency can be improved, the production flow is simplified, and the production cost is reduced. Meanwhile, the seam between the key cap 230 and the key support 210 can be reduced based on the two connection modes, so that the appearance of the key assembly 20 is optimized.

In some embodiments, as shown in fig. 5, the key holder 210 is bent toward the main body part 10 and forms the fitting part 250, the fitting part 250 is configured with the first coupling hole 260, the main body part 10 is configured with the second coupling hole 130, and the first coupling hole 260 and the second coupling hole 130 are adapted to be coupled by a fastener.

It can be understood that, on the basis that the main body 10 and the key assembly 20 are pre-positioned and guided by the first positioning unit 40 and the positioning channel 30 to achieve the fastening and fixing, the fastener is inserted through the first connecting hole 260 and the second connecting hole 130, so as to achieve a more stable assembly between the key bracket 210 and the main body 10.

The key holder 210 has an assembling portion 250 bent toward the main body portion 10 so that the key holder 210 has a substantially L-shape. To ensure that the key holder 210 can be mounted to the body part 10 by being positioned and guided in advance, the fitting part 250 will not affect the sliding of the key holder 210, whereby the fitting part 250 is provided at the end of the sliding direction of the key holder 210. It can be appreciated that when the key holder 210 is mounted to the main body 10 in a predetermined position by being snapped to the positioning channel 30 by the first positioning unit 40, the fitting portion 250 is located at a position away from the main body 10. After the key holder 210 is slid along the positioning channel 30 by the first positioning unit 40 to be mounted on the main body 10 in a snap fit manner, the fitting portion 250 is attached to the surface of the main body 10. At this time, the first connection hole 260 of the fitting part 250 is aligned with the second connection hole 130 of the body part 10, and the first connection hole 260 and the second connection hole 130 are sequentially penetrated by a fastener, thereby achieving the mutual fixation between the fitting part 250 and the body part 10.

In some embodiments, as shown in fig. 5 and 9, a second positioning unit 60 is further configured on a side of the key support 210 near the main body 10, the second positioning unit 60 is located at a position of the key support 210 away from the assembling portion 250, the second positioning unit 60 is configured with a positioning groove 610 with a notch facing away from the assembling portion 250, the main body 10 is configured with a second connecting piece 140, and the second connecting piece 140 is adapted to be clamped in the positioning groove 610.

It can be understood that the key support 210 and the main body 10 can be further fastened and fixed by sliding the positioning groove 610 of the second positioning unit 60 and the second connecting member 140. The cooperation with the connection of the first positioning unit 40 and the positioning channel 30 makes the pre-fixing of the key holder 210 more reliable and stable, prevents the key holder 210 from falling off from the main body 10 after the pre-positioning, and prevents the key holder 210 from being turned outwards during the assembly process.

The second positioning units 60 may be disposed in plurality, and the plurality of second positioning units 60 are disposed at intervals along the length direction of the key holder 210. For example, the second positioning unit 60 is provided as four. The second connecting piece 140 may have a certain length, so that the plurality of second positioning units 60 can form a clamping connection with the same second connecting piece 140. The number of the second connecting members 140 may be plural, and each second connecting member 140 corresponds to one second positioning unit 60, so that the plurality of second positioning units 60 are respectively clamped on the plurality of second connecting members 140.

The key assembly structure in this embodiment is particularly suitable for use in a display device, that is, the main body portion 10 corresponds to a bezel. Wherein the key assembly 20 is preferably mounted at a position of the bezel near the lower side. At this time, the assembly groove 120 is formed at a position of the frame near the bottom, the key assembly 20 is mounted on the frame in a bottom-to-top direction, and the assembly groove 120 is closed.

The first positioning unit 40 is disposed on the key assembly 20, and the key assembly 20 is mounted on the frame in a bottom-to-top direction. As shown in fig. 4 and 5, the arrow direction in fig. 4 indicates the mounting direction of the key assembly 20. The first connecting piece 110 may be disposed on the left and right sides of the frame at the notch of the assembly groove 120, and the positioning channel 30 extends along the height direction of the first connecting piece 110. The second connection member 140 may be disposed at an upper side of the rim at a notch position of the fitting groove 120. The rim may form the second coupling hole 130 at a groove wall surface of the bottom of the assembly groove 120. The assembly portion 250 may be disposed at a lower side of the key frame 210, the second positioning unit 60 may be disposed at an upper side of the key frame 210, and the assembly portion 250 and the second positioning unit 60 are both disposed at a side of the key frame 210 facing the frame. Thereby, the key assembly 20 can be mounted in a bottom-up direction.

Specifically, the first positioning unit 40 on the key holder 210 is assembled in the positioning channel 30, and then the key holder 210 is pushed upward, so that the first positioning unit 40 slides along the positioning channel 30 and finally forms a snap fit. During the sliding installation of the key support 210, the second positioning unit 60 will also be clamped with the second connecting member 140. Thus, the preliminary fixing of the key holder 210 is achieved by the first and second positioning units 40 and 60. In the state that the key holder 210 is primarily fixed to the frame, the assembly part 250 is attached to the lower side of the frame, and the first connection hole 260 is aligned with the second connection hole 130, and the first connection hole 260 and the second connection hole 130 are sequentially penetrated through by fasteners, so that the assembly part 250 and the frame are mutually fixed.

Thus, the second positioning unit 60 can be engaged with and fixed to the upper side of the key holder 210, and the key holder can be longitudinally limited. The key support 210 may be fixed by being engaged with the first positioning unit 40 and longitudinally limited on both sides thereof. Fastening may be achieved by a fastener at the underside of the key holder 210. The key support 210 can be connected with the frame in all directions, so that the stability and reliability of the connection of the key support 210 are ensured.

In some embodiments, a side of the key support 210 facing the touch pad 220 is configured with a first connection post 270, the first connection post 270 is configured with a third connection hole 280, the touch pad 220 is configured with a fourth connection hole 290, and the third connection hole 280 and the fourth connection hole 290 are adapted to be connected by a fastener.

The first connection post 270 may be integrally formed at the inner side of the key support 210, and the third connection hole 280 on the first connection post 270 is connected with the fourth connection hole 290 on the touch pad 220 through a fastener, so that the touch pad 220 is mounted on the key support 210. So as to facilitate maintenance of the key cap 230 and the touch pad 220 after the key assembly 20 is disassembled, and facilitate finding of the defect position.

In some embodiments, the key cap 230 is configured with a mounting portion 2100, the mounting portion 2100 is configured with a mounting hole 2110, and a second connection post 2120 is configured on a side of the key holder 210 facing the touch pad 220, and the mounting hole 2110 is sleeved on the second connection post 2120. The key cap 230 is mounted to the key holder 210 based on the snap fit between the second connection post 2120 and the mounting hole 2110. The mounting portion 2100 may have a certain elasticity, so that the key cap 230 can move toward the direction of the touch pad 220, to implement key adjustment, and the key cap 230 can be restored to the initial position under the elastic action of the mounting portion 2100, so as to facilitate subsequent adjustment.

The embodiment of the application also provides a display device which comprises the key assembly structure in the embodiment. The display device can comprise a display screen, a television, a computer, a spliced large screen and the like. Especially comprises a large commercial display education screen and an education blackboard.

In this embodiment, the display device can realize rapid positioning and installation of the key assembly 20 through the pre-positioning between the first positioning unit 40 and the positioning channel 30 and the sliding installation of the first positioning unit 40 along the positioning channel 30, so as to improve the installation efficiency of the key assembly 20, and facilitate the disassembly of the key assembly 20. Therefore, the disassembly efficiency of the key assembly 20 can be improved, the repairing step of the key assembly 20 is simplified, and the maintenance cost of the key assembly 20 is reduced.

The embodiment of the application also provides an electric appliance, which comprises the key assembly structure as in the previous embodiment or comprises the display device as in the previous embodiment. The electric appliance comprises household appliances such as televisions, computers, air conditioners, fans, refrigerators and the like. And the system also can comprise commercial appliances such as a commercial display education large screen, an education blackboard and the like.

In this embodiment, the electrical apparatus can realize rapid positioning and installation of the key assembly 20 through the pre-positioning between the first positioning unit 40 and the positioning channel 30 and the sliding installation of the first positioning unit 40 along the positioning channel 30, so as to improve the installation efficiency of the key assembly 20, and facilitate the disassembly of the key assembly 20. Therefore, the disassembly efficiency of the key assembly 20 can be improved, the repairing step of the key assembly 20 is simplified, and the maintenance cost of the key assembly 20 is reduced.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The key assembly structure, the display device and the electric appliance provided by the embodiment of the application are described in detail, and specific examples are applied to explain the principle and the implementation mode of the application, and the description of the above embodiment is only used for helping to understand the technical scheme and the core idea of the application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (10)

1. A key assembly structure, comprising:

The key assembly comprises a main body part and a key assembly, wherein the main body part is provided with a positioning channel, the key assembly is provided with a first positioning unit, or the main body part is provided with a first positioning unit, and the key assembly is provided with a positioning channel, wherein the first positioning unit is configured to be clamped with the positioning channel and slide along the extending direction of the positioning channel.

2. The key assembly structure of claim 1, wherein the first positioning unit comprises:

the connecting part is connected with the key assembly;

The stop part is connected with one side of the connecting part, which is far away from the key assembly;

The main body part is provided with a first connecting piece, the positioning channel is formed in the first connecting piece, and the connecting part penetrates through the positioning channel, so that the stop part is abutted to one side, far away from the key assembly, of the first connecting piece.

3. The key assembly structure of claim 1, wherein the first positioning unit comprises:

A connecting portion connected to the main body portion;

a stop part connected with one side of the connecting part far away from the main body part;

The key assembly is internally provided with a stop cavity, the positioning channel is formed on one side of the key assembly, which faces the main body part, and is communicated with the stop cavity, and the connecting part penetrates through the positioning channel so that the stop part is abutted to the cavity wall surface of the stop cavity.

4. A key assembly structure according to any one of claims 1-3, wherein said key assembly comprises:

a key support constructed with a through hole;

the touch control plate is connected with the key support;

The key cap is connected to the key support, penetrates through the through hole and is configured to contact the touch pad under the action of external force and be far away from the touch pad after the external force is removed;

The main body part is provided with an assembly groove, the touch pad is accommodated in the assembly groove, and the key support seals the notch of the assembly groove.

5. The key assembly structure of claim 4, wherein the key holder is bent toward the main body portion and forms an assembly portion configured with a first connection hole, and the main body portion is configured with a second connection hole, the first connection hole and the second connection hole being adapted to be connected by a fastener.

6. The key assembly structure according to claim 5, wherein a second positioning unit is further configured on one side of the key support, which is close to the main body, and the second positioning unit is located at a position of the key support, which is far away from the assembly portion, and is configured with a positioning groove with a notch facing away from the assembly portion, and the main body is configured with a second connecting piece, and the second connecting piece is adapted to be clamped in the positioning groove.

7. The key assembly structure of claim 4, wherein a side of the key holder facing the touch pad is configured with a first connection post, the first connection post is configured with a third connection hole, the touch pad is configured with a fourth connection hole, and the third connection hole and the fourth connection hole are adapted to be connected by a fastener.

8. The key assembly structure of claim 4, wherein the key cap is configured with a mounting portion, the mounting portion is configured with a mounting hole, a second connection post is configured at a side of the key support facing the touch pad, and the mounting hole is sleeved on the second connection post.

9. A display device comprising the key assembly structure according to any one of claims 1 to 8.

10. An electric appliance comprising the key assembly structure according to any one of claims 1 to 8, or comprising the display device according to claim 9.