CN215988530U - Key structure and air conditioner with same - Google Patents

Abstract

The utility model provides a key structure and an air conditioner with the same, wherein the key structure comprises a key body, a key hole is formed in the key body, a key bulge and at least two elastic rib plates are arranged in the key hole, one end of each elastic rib plate is connected with the key bulge, the other end of each elastic rib plate is connected with the key body, a thimble demoulding section is arranged at the joint of each elastic rib plate and the corresponding key bulge, and the thimble demoulding section is used for arranging a demoulding thimble. According to the utility model, the deformation of the elastic rib plate caused by uneven stress is avoided by arranging the ejector pin demoulding section on the elastic rib plate, the side-raised top end of the key is arranged to be a smooth plane, so that the generation of flash and/or burr during the injection molding production of a mold is avoided, and finally, the injection molding defect of the elastic rib plate is avoided by arranging the rib plate connecting section with gradually increased width when the elastic rib plate is close to the key body.

Description

Key structure and air conditioner with same

Technical Field

The utility model relates to the field of air conditioners, in particular to a key structure and an air conditioner with the same.

Background

With the development of science and technology, intelligent and energy-efficient electronic equipment gradually becomes the main development direction in various fields, and a key structure is an important component in the electronic equipment and is an important medium for a user to operate and control the electronic equipment.

The existing key structure comprises a key body, wherein key bulges connected by an elastic rib plate are arranged on the key body, the key bulges comprise key side bulges and surface-mounted side bulges, when the key structure is produced, a single thimble is usually adopted to push the top of the key side bulges to carry out demoulding, and the single thimble is frequently subjected to the condition of deformation of the elastic rib plate caused by uneven stress during demoulding, so that the forming quality of the key structure is seriously influenced, the hand feeling and the key effect of the key are influenced, in addition, in order to match with the thimble for positioning, a thimble groove is also required to be arranged at the top of the key side bulges, the arrangement of the thimble groove is easy to cause the top of the key side bulges to generate fins and/or burrs when a mould is used for injection moulding, if the fins and/or the burrs are removed, a surface treatment process is required to be added, the production cost of the product is improved, and the production efficiency is reduced, if not get rid of overlap and/or burr, then it can influence the protruding and key-press board on key switch's the contact effect, influence button operation effect, in addition, because the elasticity gusset is thinner narrower, the easy starvation when injection moulding leads to the elasticity gusset shaping bad, influences its outward appearance and elasticity, and user experience is not good.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that in the prior art, the elastic rib plate is easy to deform, the raised top part of the side of the key is provided with flash and/or burrs, and the injection molding of the elastic rib plate is poor.

The utility model provides a key structure, which aims to solve the problem that an elastic rib plate is easy to deform during key structure production.

This setting makes every button structure when the drawing of patterns, is ejecting by more than two thimbles, thereby makes the drawing of patterns of button structure is more steady, has avoided adopting 1 thimble among the prior art ejecting, and local atress inequality leads to the elastic rib board to warp, influences the product production qualification rate or influences the problem of product service performance.

Furthermore, the number of the elastic rib plates is two, and the ejector pin demoulding sections are oppositely arranged on two sides of the key bulge.

This setting can increase for the technical scheme who has more elastic rib plate the length of elastic rib plate, thereby the increase elastic deformation ability of elastic rib plate has avoided too much elastic rib plate to lead to the button tension, and the user uses and experiences not good problem, simultaneously, thimble demoulding section sets up relatively the bellied both sides of button are favorable to the thimble with stress balance between the button structure is favorable to the steady demolding of button structure promotes the qualification rate of product.

Furthermore, the length a of the ejector pin demoulding section is more than or equal to 3.5mm, and the width b of the ejector pin demoulding section is more than or equal to 3.5 mm.

This setting can ensure thimble drawing of patterns section forms a great planar structure, is convenient for its complete contact cooperation with the thimble, and thimble tip size is great, is convenient for transmit power dispersedly thimble drawing of patterns section avoids local atress inequality to lead to the local unusual deformation that causes of elasticity gusset has improved greatly the production qualification rate of button structure.

In order to solve the problem of poor injection molding of the elastic rib plate, a rib plate connecting section is arranged at the joint of the elastic rib plate and the key body, and the width of the rib plate connecting section is gradually increased when the elastic rib plate is close to the key body.

This be provided with when doing benefit to production injection moulding material's flow, reduced defective rate during button structure production, simultaneously, because the gusset linkage segment sets up and is being close to the one end of button body does not cause the circumstances that influences to the elasticity degree of button, has strengthened greatly elasticity gusset with the joint strength of button body has prolonged the life of button structure.

In order to solve the problem that the tops of the side protrusions of the keys are provided with flash and/or burrs, the side protrusions of the keys comprise side protrusions of the keys and side protrusions of the surface paste, and the top ends of the side protrusions of the keys are smooth planes.

This setting has avoided the production of overlap and/or burr in the production process of moulding plastics effectively on the one hand, has improved production efficiency, has reduced manufacturing cost, on the other hand help improving the button side protruding with key switch's area of contact to transmit button pressure better, ensure the button effect.

Further, the key structure still includes the face subsides, the face subsides with the bellied top of face subsides side, button body butt set up, the face subsides are used for the user to carry out the key-operated.

And key marks are arranged on the surface paste at positions corresponding to the top ends of the side bulges of the surface paste, and the key marks specifically represent functions corresponding to all cases, so that a user is guided to execute corresponding key operations.

Furthermore, a surface paste groove is formed in the top end of the surface paste side protrusion and used for reducing force required by key operation of a user.

This setting makes the area of contact of face subsides side arch and face subsides reduces, and is corresponding, will key switch presses required power and also reduces correspondingly, and the user can press the button with littleer power, has promoted user's use and has experienced.

Further, the key structure further comprises a key board, wherein a key switch is arranged on the key board, the key switch is abutted to the top end of the key side protrusion, and the key switch is used for sensing key operation and transmitting a signal of the key operation to the control chip.

When the key is operated, the position of the surface paste, which is convex relative to the side of the surface paste, is pressed, the convex displacement of the key can simultaneously press the key switch, the key switch transmits sensed key operation signals to the control chip, after the key operation is finished, the key protrusion is reset under the action of the elastic rib plate, and the key switch is also automatically reset to wait for the next key operation.

Furthermore, the button side of button body is provided with at least one location muscle, the top of location muscle with the keypad butt is used for the button body with the location of keypad.

This setting makes the button body with the position between the keypad is relatively stable, and then has reduced the button protruding with the risk that takes place relative displacement between the key switch has improved the validity of key operation.

The utility model also discloses an air conditioner which comprises the key structure.

Compared with the prior art, the air conditioner has the same advantages as the key structure, and the description is omitted.

Compared with the prior art, the utility model realizes double-thimble demoulding when the key structure is produced by arranging the thimble demoulding sections at the two sides of the key bulge, avoids the problem that the elastic rib plate is deformed and further the hand feeling and the performance of the key are influenced due to uneven demoulding stress of a single thimble, simultaneously, because the thimble is not contacted with the top part of the key side bulge any more, the top part of the key side bulge is not required to be provided with a thimble groove and is arranged into a smooth plane, thereby avoiding the generation of flash and/or burr when the mould is used for injection moulding production, reducing the production cost for removing the flash and/or the burr, improving the production efficiency, in addition, the elastic rib plate is connected with the key body, when the elastic rib plate is close to the key body, the width of the elastic rib plate is gradually increased, the arrangement can increase the fluidity of materials during injection moulding, avoid the injection moulding defect, and increase the key strength under the condition of not influencing the tightness of the key, the service life of the key is prolonged. The key structure provided by the utility model is simple in structure and convenient to produce, improves the product qualification rate and the production efficiency during production, and prolongs the service life of the key structure.

Drawings

Fig. 1 is a schematic structural diagram of a key structure according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another angle of the key structure according to the embodiment of the present invention;

FIG. 3 is a top view of a key structure according to an embodiment of the present invention;

FIG. 4 is a left side view of the key structure according to the embodiment of the present invention;

FIG. 5 is a bottom view of the key structure according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a state where the key structure and the key sheet are engaged according to the embodiment of the present invention;

fig. 7 is a schematic cross-sectional view illustrating a key structure and a key board in a matching state according to an embodiment of the present invention.

Description of reference numerals:

1-a key body; 11. a key hole; 2-the key is raised; 21-key side projection; 22-side projection of the surface paste; 221-a surface paste groove; 3-elastic rib plates; 31-ejector pin demoulding section; 32-rib plate connecting section; 4-positioning ribs; 5-enclosing plates; 6-a keypad; 61-key switch; 7-paste.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the utility model and do not delimit the utility model.

The following describes a key structure and an air conditioner having the same according to embodiments of the present invention with reference to the accompanying drawings.

Example 1

The embodiment provides a key structure, as shown in fig. 1-5, which includes a key body 1, a key hole 11 is formed in the key body 1, a key protrusion 2 and at least two elastic rib plates 3 are arranged in the key hole 11, one end of each elastic rib plate 3 is connected to the key protrusion 2, the other end of each elastic rib plate 3 is connected to the key body 1, a thimble demolding section 31 is arranged at the joint of the elastic rib plate 3 and the key protrusion 2, the thimble demolding section 31 is used for setting a demolding thimble, and the thimble demolding section 31 enables each key structure to be ejected by more than two thimbles during demolding, so that demolding of the key structure is more stable, and the problems that the elastic rib plates 3 deform due to uneven local stress, which affects the production yield of products or affects the usability of products in the prior art are avoided.

Specifically, as shown in fig. 1-3, elastic rib plate 3 has two, thimble demoulding section 31 sets up relatively the both sides of the protruding 2 of button, and this setting can increase for the technical scheme that has more elastic rib plate 3 the length of elastic rib plate 3 to the increase elastic deformation ability of elastic rib plate 3 has avoided too much elastic rib plate 3 to lead to the button too tight, and the user uses and experiences not good problem, simultaneously, thimble demoulding section 31 sets up relatively the protruding 2 both sides of button, is favorable to the thimble with the atress balance between the button structure is favorable to the steady demolding of button structure promotes the qualification rate of product.

Preferably, as shown in fig. 5, the length a of the ejector pin demolding section 31 is greater than or equal to 3.5mm, and the width b of the ejector pin demolding section 31 is greater than or equal to 3.5mm, so that the ejector pin demolding section 31 can form a larger plane structure, the ejector pin demolding section and the ejector pin can be conveniently in complete contact fit, the size of the end portion of the ejector pin is larger, force can be conveniently dispersedly transmitted to the ejector pin demolding section 31, local abnormal deformation of the elastic rib plate 3 caused by uneven local stress is avoided, and the production yield of the key structure is greatly improved.

As an embodiment of the present invention, as shown in fig. 3, a rib connecting section 32 is disposed at a connection position of the elastic rib 3 and the key body 1, and when the elastic rib 3 is close to the key body 1, the width of the rib connecting section 32 is gradually increased, in the prior art, a connection position of the elastic rib 3 and the key body 1 is a commonly used injection port position, since the elastic rib 3 is thin and narrow, during injection molding, the flowability of an injection molding material in a mold is poor, the conditions of poor molding and local glue shortage are likely to occur, which may cause local deficiency or local over-thinness of the elastic rib 3, during pressing operation of the key, fatigue fracture or plastic deformation is likely to occur, which seriously affects product quality and service life, and through the arrangement of the rib connecting section 32, the connection position of the elastic rib 3 and the key body 1 is widened, thereby the flow of injection moulding material when being favorable to producing has reduced defective rate when button structure produces, simultaneously, because gusset linkage segment 32 sets up and is being close to button body 1's one end, under the condition that does not cause the influence to the elasticity degree of button, has strengthened greatly elasticity gusset 3 with button body 1's joint strength has prolonged button structure's life. Specifically, the rib plate connecting section 32 is triangular or C-shaped, preferably C-shaped, more preferably C-shaped, and the C-shaped is a C-shaped angle larger than 3 × 3mm, and the rib plate connecting section 32 and the key body 1 are in arc transition at the connecting position by adopting the C-shaped, so that local stress concentration easily formed during linear connection is avoided, the connecting strength of the elastic rib plate 3 can be better protected, the service life of the key structure is prolonged, excellent injection molding performance can be obtained by adopting the C-shaped angle larger than 3 × 3mm, and the molding effect of the elastic rib plate 3 is remarkably improved.

As some examples, as shown in fig. 4 and 7, the key protrusions 2 include a key-side protrusion 21 and a facing-side protrusion 22, and the top end of the key-side protrusion 21 is a smooth plane. On one hand, in the prior art, in order to cooperate with a mold-releasing thimble, a thimble groove is usually disposed on the key-side protrusion 21, and the thimble groove is used to cooperate with a mold-releasing thimble, when a mold is used for injection molding production, a position of the thimble groove often generates a flash and/or a burr, if the flash and/or the burr is removed, a surface treatment process is required to be added, so as to improve a production cost of a product and reduce a production efficiency, if the flash and/or the burr is not removed, the contact effect of the key protrusion 2 and the key switch 61 on the key board 6 is affected, and a key operation effect is affected, and if the flash and/or the burr dropped in a pressing process falls on the key board 6 seriously, a local poor contact of the key board 6 may be caused, and a key failure may be caused, in this embodiment, the top end of the key-side protrusion 21 is set to be a smooth plane, on the other hand, in this embodiment, due to the arrangement of the ejector pin demolding section 31, the key-side protrusion 21 does not need to be matched with the ejector pin, and therefore, an ejector pin groove does not need to be arranged, and setting the top end of the key-side protrusion 21 as a smooth plane helps to increase the contact area between the key-side protrusion and the key switch 61, so as to better transmit the key pressure and ensure the key effect, specifically, in this embodiment, as shown in fig. 6 and 7, after the key body 1 is assembled with the key board 6 and the surface sticker 7, the side of the key body 1 close to the key board 6 is the key side, and the side of the key body 1 close to the surface sticker 7 is the surface sticker side.

Preferably, the key structure further includes a surface patch 7, the surface patch 7 is abutted to the top ends of the key body 1 and the surface patch side protrusions 22, the surface patch 7 is used for a user to perform key operation, specifically, a key identifier is arranged on the surface patch 7 at a position corresponding to the top end of the surface patch side protrusion 22, and the key identifier specifically represents a function corresponding to each case, so as to guide the user to perform corresponding key operation.

As a preferred embodiment, as shown in fig. 7, a surface paste groove 221 is formed at the top end of the surface paste side protrusion 22, and the surface paste groove 221 is used for reducing the force required by the user for key pressing operation, in the prior art, when the key is pressed, the key switch 61 needs to bear the force exceeding the key pressure threshold to be pressed, the key pressure threshold is a certain value, generally, the top end of the surface paste side protrusion 22 is a smooth plane, at this time, the user needs to use the force greater than or equal to the key pressure threshold, namely the area of the top end of the surface paste side protrusion 22, to press the key, in this embodiment, due to the surface paste groove 221, the contact area between the surface paste side protrusion 22 and the surface paste 7 is reduced, correspondingly, the force required for pressing the key switch 61 is also reduced, the user can press the key with a smaller force, and the user experience is improved, preferably, the top end of the side projection 22 protrudes out of the key body 1, the protruding part is within 0.2mm, and the top end of the side projection 22 is more tightly abutted against the surface patch 7, so that the phenomenon of 'virtual pressing' caused by a gap between the top end of the side projection 22 and the surface patch 7 is avoided, and the key hand feeling of a user is improved.

As some embodiments, as shown in fig. 6 and 7, the key structure further includes a key board 6, a key switch 61 is disposed on the key board 6, the key switch 61 abuts against a top end of the key-side protrusion 21, the key switch 61 is configured to sense a key operation and transmit a signal of the key operation to a control chip for control, during a specific operation, a position of the face paste 7 relative to the face-side protrusion 22 is pressed, a displacement of the key protrusion 2 simultaneously presses the key switch 61, the key switch 61 transmits the sensed key operation signal to the control chip, after the key operation is completed, the key protrusion 2 is reset under the action of the elastic rib plate 3, the key switch 61 is also automatically reset, and waits for a next key operation, preferably, the key board 6 is a PCB (Printed circuit board, printed circuit board), control chip sets up on the PCB board, should be provided with and do benefit to the simplification the constitution of button structure saves the setting of spare part, reduces product cost.

Specifically, as shown in fig. 1, 6, and 7, at least one positioning rib 4 is disposed on the key side of the key body 1, the top end of the positioning rib 4 abuts against the key board 6 for positioning the key body 1 and the key board 6, when the key is operated, relative displacement is likely to occur between the key protrusion 2 and the key switch 61, which may cause the problems of key failure, key bounce, and the like, and the positioning rib 4 is disposed so that the position between the key body 1 and the key board 6 is relatively stable, thereby reducing the risk of relative displacement occurring between the key protrusion 2 and the key switch 61 during key pressing, and improving the effectiveness of key operation.

As a preferred embodiment of the present invention, as shown in fig. 4, a surrounding plate 5 is further disposed on the key side of the key body 1, the surrounding plate 5 is disposed along the periphery of the key hole 11, and the surrounding plate 5 and the key side of the key body 1 form a step-shaped structure, and the step-shaped structure is used for positioning and mounting the key body 1.

Example 2

The embodiment discloses an air conditioner, which comprises the key structure in the embodiment 1.

The advantages of the air conditioner provided in this embodiment and the key structure described in embodiment 1 are the same as those of the prior art, and are not described herein again.

It should be noted that all terms used in the present invention for directional and positional indication, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "trailing", "leading", "center", and the like are used only for explaining the relative positional relationship, connection, and the like between the respective members in a certain state, and are used only for convenience of describing the present invention, and do not require that the present invention must be constructed and operated in a certain orientation, and thus, should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. The key structure is characterized by comprising a key body (1), wherein a key hole (11) is formed in the key body (1), a key bulge (2) and at least two elastic rib plates (3) are arranged in the key hole (11), each elastic rib plate (3) is connected with the key bulge (2) at one end and connected with the other end of the key body (1), a thimble demoulding section (31) is arranged at the joint of the elastic rib plates (3) and the key bulge (2), and the thimble demoulding section (31) is used for arranging a demoulding thimble.

2. The key structure according to claim 1, characterized in that the number of the elastic rib plates (3) is two, and the ejector pin demoulding sections (31) are oppositely arranged on two sides of the key bulge (2).

3. The key structure of claim 1, wherein the ejector pin stripping section (31) has a length a of 3.5mm or more and a width b of 3.5mm or more.

4. The key structure according to claim 1, characterized in that a rib connecting section (32) is arranged at the joint of the elastic rib (3) and the key body (1), and the width of the rib connecting section (32) is gradually increased when the key structure is close to the key body (1).

5. The key structure according to any of claims 1-4, characterized in that the key protrusions (2) comprise key-side protrusions (21) and facing-side protrusions (22), and the tips of the key-side protrusions (21) are smooth and flat.

6. The key structure of claim 5, characterized in that the key structure further comprises a surface paste (7), the surface paste (7) is arranged in an abutting manner with the top end of the surface paste side protrusion (22) and the key body (1), and the surface paste (7) is used for a user to perform key operation.

7. The key structure of claim 5, wherein a facing recess (221) is provided at the tip of the facing side protrusion (22), and the facing recess (221) is used to reduce the force required for the user to operate the key.

8. The key structure according to claim 6, characterized in that the key structure further comprises a key plate (6), a key switch (61) is arranged on the key plate (6), the key switch (61) is abutted against the top end of the key-side protrusion (21), and the key switch (61) is used for sensing key operation and transmitting a signal of the key operation to the control chip.

9. The key structure of claim 8, characterized in that at least one positioning rib (4) is arranged on the key side of the key body (1), and the top end of the positioning rib (4) is abutted against the key plate (6) for positioning the key body (1) and the key plate (6).

10. An air conditioner characterized in that it comprises a key structure according to any one of claims 1 to 9.

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