Navigation key for telephone set

Abstract

The utility model discloses a navigation button for a telephone set, comprising a support arranged on the surface of a circuit board; the elastic piece is arranged on one side of the support and used for providing pressing tactile feedback and resetting; the pressing structure is arranged on the other side of the support and comprises a pressing contact part arranged on the other side of the support, the pressing contact part is used for pressing the elastic piece, and a surrounding limiting part used for limiting the pressing contact part is arranged on the outer side of the pressing contact part. And a light guide part for enabling the key to be visible is arranged on the side of the pressing contact part and located in an inner cavity surrounding the limiting part. According to the telephone navigation key, the surrounding limiting part and the pressing contact part are arranged at the pressing structure on the side of the bracket, and the light guide part arranged on the side of the pressing contact part is used for transmitting light rays, so that the pressing contact part guides light and illuminates, and the design of the light guide part solves the problem that the telephone navigation key emits blurred light in a dark condition.

Description

TECHNICAL FIELD

[0001] The utility model relates to navigation key field, especially in a kind of navigation key for telephone set. BACKGROUND

[0002] In telephone set equipment, navigation key is the important part of user operation, however, there are some problems in the design of traditional telephone set navigation key, especially in the use experience in low light or dark environment;

[0003] Although the existing telephone set navigation key provides backlight illumination, it is illuminated by light conduction to the key, and due to energy loss in the conduction process, the backlight can only provide limited brightness and uniformity, which cannot ensure that all keys can be clearly visible, and after long-term use, the aging of the keys makes the navigation key more blurred, which affects the visible use of the navigation key, therefore, in order to solve the problem of light blur in dark situation of telephone set navigation key, the utility model provides a new type of navigation key design scheme for telephone set. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of navigation key for telephone set to solve the problem proposed in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of navigation key for telephone set, including:

[0006] Support, the support is set to circuit board surface;

[0007] Spring piece, the spring piece is set to one side of support, and the spring piece is used to provide press touch feedback and reset;

[0008] Pressing structure, the pressing structure is set to the other side of support, and the pressing structure is used for the press of user, and the pressing structure includes the pressing contact part set to the other side of support, and the pressing contact part is used for the press of spring piece, and the outer side of the pressing contact part is provided with the surrounding limiting portion for limiting the pressing contact part, and the edge side of the pressing contact part and the inner cavity of the surrounding limiting portion are provided with the light guide portion for key visibility.

[0009] Preferably, the surrounding limiting portion includes:

[0010] Light shielding silica gel cover, the light shielding silica gel cover is set to the other side of support;

[0011] Insulating sheet, the insulating sheet is set to the opposite side of light shielding silica gel cover and support, and the insulating sheet is used to block the transmission of heat;

[0012] The limiting piece is arranged on the opposite side of the support and the light shielding silica gel sleeve, and is used for limiting the relative rotation of the support and the light shielding silica gel sleeve.

[0013] Preferably, the limiting piece comprises a positioning column, which is symmetrically arranged on the other side of the support, and the end of the positioning column is sequentially connected to the isolation sheet and the side of the light shielding silica gel sleeve.

[0014] Preferably, the side of the isolation sheet and the side of the light shielding silica gel sleeve are respectively provided with a second positioning hole and a first positioning hole for the positioning column to pass through.

[0015] Preferably, the pressing contact part comprises:

[0016] The contact pressing disc is used for the direct contact and pressing of the hand.

[0017] A plurality of extrusion protrusions are arranged around the side of the contact pressing disc, and the end of the extrusion protrusion is sequentially connected to the side of the light shielding silica gel sleeve, the isolation sheet and the support, and the extrusion protrusion is used for contacting and extruding the elastic sheet.

[0018] Preferably, the side of the isolation sheet and the side of the support are respectively provided with a first pressing hole and a second pressing hole for the extrusion protrusion to pass through, and the inner wall of the light shielding silica gel sleeve is provided with a tubular protrusion groove for the extrusion protrusion to pass through.

[0019] Preferably, the light guide part comprises a silica gel light guide column, one end of the silica gel light guide column is connected to the side of the light shielding silica gel sleeve, the isolation sheet and the support, and the other end of the silica gel light guide column is fixedly connected to the side of the contact pressing disc.

[0020] Preferably, the side of the elastic sheet and the side of the support are respectively symmetrically provided with a limiting hole and a limiting groove for the protrusion on the circuit board to pass through.

[0021] The technical effects and advantages of the present application are as follows:

[0022] The present application is provided with a surrounding limiting part and a pressing contact part at the pressing structure of the side of the support, the light is transmitted by the light guide part arranged on the side of the pressing contact part, the light is guided and illuminated by the pressing contact part, and the design of the light guide part solves the problem of blurred and dim light of the telephone navigation key in dark conditions. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is one of the overall explosion structure schematic diagram of the present application.

[0024] Figure 2 It is the second of the overall explosion structure schematic diagram of the present application.

[0025] Figure 3It is the whole structure schematic view one of the utility model.

[0026] Figure 4 It is the whole structure schematic view two of the utility model.

[0027] In the drawing: 1, light shielding silica gel cover, 101, first positioning hole, 2, contact pressing disc, 201, extrusion protrusion, 3, isolation sheet, 301, second positioning hole, 302, first pressing hole, 4, support, 401, second pressing hole, 402, positioning column, 403, limiting groove, 5, elastic sheet, 501, limiting hole, 6, silica gel light guide column. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] The utility model provides a kind of navigation key for telephone set as Figures 1-4 As shown in:

[0030] Embodiment one, a navigation key for telephone set, comprising: support 4, elastic sheet 5 and pressing structure;

[0031] Specifically, support 4 is arranged on the surface of circuit board, elastic sheet 5 is arranged on one side of support 4, and pressing structure is arranged on the other side of support 4.

[0032] It should be noted that the surface of support 4 and circuit board can be bonded by glue, elastic sheet 5 is used to provide pressing tactile feedback and reset, and pressing structure is used for hand pressing of user.

[0033] Specifically, the pressing structure includes a pressing contact part arranged on the other side of the support 4, the pressing contact part is used for pressing the elastic sheet 5, the outer side of the pressing contact part is provided with a surrounding limiting part for limiting the pressing contact part, and the edge side of the pressing contact part and the inner cavity of the surrounding limiting part are provided with a light guide part for key visibility.

[0034] The surrounding limiting part includes: light shielding silica gel cover 1, isolation sheet 3 and limiting piece.

[0035] Specifically, the light shielding silica gel cover 1 is arranged on the other side of the support 4, the isolation sheet 3 is arranged on the opposite side of the light shielding silica gel cover 1 and the support 4, and the limiting piece is arranged on the opposite side of the support 4 and the light shielding silica gel cover 1.

[0036] It should be noted that the isolation sheet 3 is used to block the transmission of heat, the limiting piece is used to limit the relative rotation of the light shielding silica gel sleeve 1 and the support 4, the light shielding silica gel sleeve 1 is fixedly connected with the isolation sheet 3 and the support 4 by using glue, and the limiting piece includes a positioning column 402 which is symmetrically arranged on the other side of the support 4, and the end of the positioning column 402 is sequentially connected with the isolation sheet 3 and the light shielding silica gel sleeve 1;

[0037] Specifically, the positioning column 402 and the support 4 are integrally injection molded, and the isolation sheet 3 and the light shielding silica gel sleeve 1 are respectively provided with a second positioning hole 301 and a first positioning hole 101 for the positioning column 402 to pass through;

[0038] The pressing contact part includes a contact pressing disc 2 and a plurality of extrusion protrusions 201;

[0039] Specifically, the contact pressing disc 2 is used for direct contact pressing of the hand, the plurality of extrusion protrusions 201 are arranged around the side of the contact pressing disc 2, the end of the extrusion protrusion 201 is sequentially connected with the side of the light shielding silica gel sleeve 1, the isolation sheet 3 and the support 4, and the extrusion protrusion 201 is used for contacting and extruding the elastic sheet 5;

[0040] It should be noted that the side of the isolation sheet 3 and the support 4 is respectively provided with a first pressing hole 302 and a second pressing hole 401 for the extrusion protrusion 201 to pass through, the material of the extrusion protrusion 201 is hard silica gel, the inner wall of the contact pressing disc 2 and the light shielding silica gel sleeve 1 is fixedly connected by using glue, and the inner wall of the light shielding silica gel sleeve 1 is provided with a tubular protrusion groove hole for the extrusion protrusion 201 to pass through;

[0041] Specifically, the extrusion protrusion 201 sequentially passes through the tubular protrusion groove hole, the first pressing hole 302 and the second pressing hole 401, and the elastic sheet 5;

[0042] Embodiment two, a light guide part is applied to the navigation key for the telephone in embodiment one,

[0043] The light guide part includes a silica gel light guide column 6, one end of the silica gel light guide column 6 is connected with the side of the light shielding silica gel sleeve 1, the isolation sheet 3 and the support 4, and the other end of the silica gel light guide column 6 is fixedly connected with the side of the contact pressing disc 2;

[0044] Specifically, the silica gel light guide column 6 and the contact pressing disc 2 are fixedly connected by using glue, the side of the elastic sheet 5 and the support 4 is respectively symmetrically provided with a limiting hole 501 and a limiting groove 403 for the protrusion on the circuit board to pass through, the limiting hole 501 and the limiting groove 403 are used for limiting the elastic sheet 5, the support 4 and the circuit board, so that the protrusion on the circuit board is in the inner cavity of the limiting hole 501 and the limiting groove 403, thereby limiting the elastic sheet 5 and the support 4, and preventing the elastic sheet 5 and the support 4 from deviating from the corresponding position of the circuit board;

[0045] In actual use, through the setting of the surrounding limiting part and the pressing contact part at the pressing structure of the side of the support 4, the light is transmitted by the light guide part arranged at the side of the pressing contact part, so that the pressing contact part is illuminated, and the design of the light guide part solves the problem of dim light of the telephone navigation key in dark conditions.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A navigation key for a telephone set, characterized by comprising: The utility model relates to a kind of key structure, including: Support (4), the support (4) is arranged on the surface of circuit board; Spring piece (5), the spring piece (5) is arranged on one side of support (4), and the spring piece (5) is used to provide pressing tactile feedback and reset; Pressing structure, the other side of the pressing structure is arranged on the support (4), and the pressing structure is used for the pressing of user, and the pressing structure includes the pressing contact part arranged on the other side of the support (4), and the pressing contact part is used for the pressing of spring piece (5), and the outer side of the pressing contact part is provided with the surrounding limiting part for limiting the pressing contact part, and the edge side of the pressing contact part and the inner cavity of the surrounding limiting part are provided with the light guide part for the key visible.

2. The navigation key for a telephone set according to claim 1, wherein The surrounding limiting part includes: Light shielding silica gel sleeve (1), the light shielding silica gel sleeve (1) is arranged on the other side of support (4); Insulating sheet (3), the insulating sheet (3) is arranged on the opposite side of light shielding silica gel sleeve (1) and support (4), and the insulating sheet (3) is used to block the transmission of heat; Limiting piece, the limiting piece is arranged on the opposite side of support (4) and light shielding silica gel sleeve (1), and the limiting piece is used to limit the relative rotation of support (4) and light shielding silica gel sleeve (1).

3. The navigation key for a telephone set according to claim 2, wherein The limiting piece includes positioning column (402), and the positioning column (402) is symmetrically arranged on the other side of support (4), and the end of the positioning column (402) is sequentially inserted into the edge side of insulating sheet (3) and light shielding silica gel sleeve (1).

4. The navigation key for a telephone set according to claim 3, wherein The edge side of the insulating sheet (3) and light shielding silica gel sleeve (1) is respectively provided with the second positioning hole (301) and the first positioning hole (101) for the insertion of the positioning column (402).

5. The navigation key for a telephone set according to claim 2, wherein The pressing contact part includes: Contact pressing disc (2), the contact pressing disc (2) is used for the direct contact pressing of hand; Multiple extrusion protrusions (201), multiple extrusion protrusions (201) are circumferentially arranged on the edge side of contact pressing disc (2), and the end of the extrusion protrusion (201) is sequentially inserted into the edge side of light shielding silica gel sleeve (1), insulating sheet (3) and support (4), and the extrusion protrusion (201) is used to contact and extrude spring piece (5).

6. The navigation key for a telephone set according to claim 5, wherein The edge side of the insulating sheet (3) and support (4) is respectively circumferentially provided with the first pressing hole (302) and the second pressing hole (401) for the insertion of the extrusion protrusion (201), and the inner wall of the light shielding silica gel sleeve (1) is provided with the tubular protrusion groove hole for the insertion of the extrusion protrusion (201).

7. The navigation key for a telephone set according to claim 5, wherein The light guide part includes silica gel light guide column (6), one end of the silica gel light guide column (6) is inserted into the edge side of light shielding silica gel sleeve (1), insulating sheet (3) and support (4), and the other end of the silica gel light guide column (6) is fixedly connected to the edge side of contact pressing disc (2).

8. The navigation key for a telephone set according to claim 2, wherein The edge side of the spring piece (5) and support (4) is respectively symmetrically provided with the limiting hole (501) and the limiting groove (403) for the insertion of the protrusion on the circuit board.

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