CN210865428U - Switch display device - Google Patents
Switch display device Download PDFInfo
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- CN210865428U CN210865428U CN202020154740.1U CN202020154740U CN210865428U CN 210865428 U CN210865428 U CN 210865428U CN 202020154740 U CN202020154740 U CN 202020154740U CN 210865428 U CN210865428 U CN 210865428U
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- protective cover
- transparent protective
- switch
- side plate
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Abstract
The utility model belongs to the switch shows the field, specifically discloses a switch display device, and the device is including the display element, middle unit and the base unit that from top to bottom connect gradually. The display unit is used for realizing a picture display function, the middle unit is used for providing a structure bearing function, the base unit provides an electrical connection interface between the inside and the outside of the device, and meanwhile, the functions of electrical on-off control and the like are realized. The display unit includes a display device, a transparent protective cover, and a supporting member; the display device is connected to the lower surface of the transparent protective cover and extends downwards to the inner side of the supporting part; the periphery of the lower surface of the transparent protective cover is connected to the top surface of the supporting component; the periphery of the upper surface of the transparent protective cover is a curved surface, and the part inside the periphery is a plane; the lower surface of the transparent protective cover is a plane. The utility model provides a display element has simple structure, convenient assembling, does benefit to advantages such as reduction device's manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of the switch shows, in particular to switch display device.
Background
Chinese patent application publication No. CN104779107A discloses a frameless display device, and in this patent document, a small button display switch is provided, which can realize electrical on-off control and full screen display.
However, the frameless display device provided in this patent document has the following drawbacks:
(1) in order to realize full-screen display of the device, the document designs a relatively complex lens structure, which inevitably causes complex processing technology and high production cost in the actual processing process;
(2) the overall structure of the device is complex, so that the assembly is troublesome and time-consuming;
(3) the device can only realize lower level of protection, and in some application scenes with higher waterproof requirements, such as the environment adjacent to a water area where water splash is possible, the application of the device can be limited.
For the reasons of the above three aspects, the switch display device in the prior art needs further improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a switch display device to simplify display element's structure, reduction in production cost.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a switch display device includes a display unit; the display unit includes:
a display device, a transparent protective cover, and a support member;
the display device is connected to the lower surface of the transparent protective cover and extends downwards to the inner side of the supporting part;
the periphery of the lower surface of the transparent protective cover is connected to the top surface of the supporting component;
the periphery of the upper surface of the transparent protective cover is a curved surface, and the part inside the periphery is a plane; the lower surface of the transparent protective cover is a plane.
Preferably, the display device comprises a liquid crystal display or an LED display; the transparent protective cover is made of glass material.
Preferably, the display device is attached to the lower surface of the transparent protective cover by means of optical glue or "bell" glue.
Preferably, the periphery of the lower surface of the transparent protective cover is provided with a light absorption coating;
the inner side edge of the light absorption coating is overlapped with the edge of an effective display area of the display device, and the outer side edge of the light absorption coating is overlapped with the outer side edge of the lower surface of the transparent protection cover;
the sum of the areas of the active display area of the display device and the light absorbing coating is equal to the area of the lower surface of the transparent protective cover.
Preferably, the distance d between the display device and the transparent protective cover ranges from 0 < d ≦ 0.3 mm.
Preferably, a minimum distance value between each edge of the effective display area of the display device and the corresponding outer edge of the display device is defined as dmin(ii) a Defining the thickness value of the transparent protective cover as H; wherein:
h is a distance value between the flat surface portion of the upper surface of the transparent protective cover and the lower surface of the transparent protective cover, and H ═ dmin。
Preferably, the transparent protective cover is a square transparent protective cover or a round transparent protective cover;
taking a vertical section of the transparent protective cover parallel to the edge of the square transparent protective cover or passing through the circle center of the round transparent protective cover;
defining the projection length of a section of curve taken from the section in the horizontal plane as L1A projected length in the vertical plane of L2；
Then L is1And L2The size relationship of (A) is as follows: l is2≤L1≤1.3L2。
Preferably, the support member comprises a support member side plate and a support member bottom plate connected to each other;
wherein, the supporting component side plate is an annular side plate;
the display device extends downward to the inner side of the side plate of the supporting part; the periphery of the lower surface of the transparent protective cover is connected to the top surface of the side plate of the supporting component through glue; the bottom plate of the supporting component is provided with a connecting wire harness through hole.
Preferably, the switch display device further includes a middle unit and a bottom unit located below the display unit;
the middle unit comprises a middle unit top plate and a middle unit side plate which are connected with each other;
the middle unit top plate is provided with a connecting wire harness through hole, and the middle unit side plate is an annular side plate;
the bottom plate of the supporting part is connected with the top plate of the middle unit through glue or clamping;
a switch cap pressing seat is arranged in the middle of the lower surface of the middle unit top plate, and a switch cap limiting groove is formed in the switch cap pressing seat;
the base unit comprises a base body, a circuit board, a button switch, a rubber switch cap, a socket and a connecting wire harness;
the base body comprises a base body bottom plate and a base body side plate which are connected with each other;
the side plate of the base body is an annular side plate;
the circuit board is arranged on the base body bottom plate, and the button switch and the socket are respectively arranged on the circuit board;
one end of the connecting wire harness is connected to the socket, and the other end of the connecting wire harness extends upwards to the lower part of the display device through the connecting wire harness through hole on the top plate of the middle unit and the connecting wire harness through hole on the bottom plate of the supporting component and is connected to the lower surface of the display device;
the rubber switch cap is sleeved on the button switch and integrally wraps the button switch;
the top end of the rubber switch cap extends into the switch cap limiting groove;
at least two groups of buckle units are arranged between the middle unit side plate and the base body side plate;
the buckle unit is equipped with on the buckle and supplies fixture block male bayonet socket including installing in the buckle of middle unit curb plate bottom and installing in the fixture block of base body curb plate lateral part on the buckle, wherein:
the shape of the bayonet is matched with that of the clamping block, and the size of the bayonet along the vertical direction is larger than that of the clamping block along the vertical direction.
Preferably, the circumferential edge of the base body bottom plate is provided with an annular glue groove, and the circuit board is connected with the base body bottom plate through glue injected into the annular glue groove; the connection parts of the circuit board, the button switch and the socket are respectively connected in a sealing way through glue;
the connection harness and the socket and the connection part of the connection harness and the display device are respectively connected in a sealing mode through glue;
the base body bottom plate is provided with a pin outlet hole for the socket pin to extend out, and the pin outlet hole is connected in a sealing mode through glue.
The utility model has the advantages of as follows:
as described above, the utility model discloses a switch display device, the device provide a simple structure, convenient assembling's display element, do benefit to the manufacturing process who simplifies each part of display element, reduce the manufacturing cost of display element and device.
Drawings
Fig. 1 is a schematic structural diagram of a switch display device according to an embodiment of the present invention;
fig. 2 is a front view of a switch display device according to an embodiment of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a side view of a switch display device according to an embodiment of the present invention;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
fig. 6 is a schematic structural view of a support member according to an embodiment of the present invention;
FIG. 7 is a top view of a support member according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an intermediate unit in an embodiment of the present invention;
fig. 9 is a front view of an intermediate unit in an embodiment of the invention;
FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9;
fig. 11 is a schematic structural view of the base body according to the embodiment of the present invention;
fig. 12 is a front view of the base body in the embodiment of the present invention;
fig. 13 is a top view of the base body in an embodiment of the present invention;
fig. 14 is a bottom view of the base body according to the embodiment of the present invention;
FIG. 15 is a schematic structural view of a rubber switch cap according to an embodiment of the present invention;
fig. 16 is an optical schematic diagram of a switch display device according to an embodiment of the present invention;
fig. 17 is a top view of a display device in an embodiment of the present invention;
fig. 18 is a schematic view of a transparent protective cover in an embodiment of the present invention.
Wherein, 1-display unit, 2-middle unit, 3-base unit, 4-display device, 5-transparent protective cover, 6-supporting component, 7-supporting component side plate, 8-supporting component bottom plate, 9-connecting wire harness perforation;
10-square plate, 11-light absorption coating, 12-middle unit top plate, 13-middle unit side plate, 14-connecting wire harness through hole, 15-claw, 16-switch cap pressing seat, 17-switch cap limiting groove, 18-base body and 19-circuit board;
20-button switch, 21-rubber switch cap, 22-socket, 23-connecting wiring harness, 24-base body bottom plate, 25-base body side plate, 26-buckle, 27-clamping block, 28-clamping block, 29-annular rubber groove, 30-positioning block, 31-positioning groove and 32-needle outlet hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 5, a switch display device includes a display unit 1, a middle unit 2, and a base unit 3. Wherein, the display unit 1, the middle unit 2 and the base unit 3 are sequentially connected from top to bottom.
The display unit 1 functions to realize screen display.
As shown in fig. 3 and 5, the display unit 1 includes a display device 4, a transparent protection cover 5, and a support member 6. The display device 4 is used for providing a display image, and the device can adopt a flat display screen such as a liquid crystal display screen or an LED display screen.
Of course, the transparent protection cover 5 can also be made of ABS plastic material which is available in the prior art.
The transparent protective cover 5 serves to enlarge the display image provided by the display device 4 to some extent.
As shown in fig. 1, the transparent protection cover 5 has the following structure:
the outer periphery of the upper surface of the transparent protective cover 5 is a curved surface S, and the portion inside the outer periphery is a flat surface. The lower surface of the transparent protective cover 5 is a flat surface. Wherein, the periphery of the upper surface refers to the area of the upper surface that is closer to the outer edge.
Fig. 16 shows an optical path diagram of the transparent cover 5 for enlarging and displaying a display image.
The periphery of the transparent protective cover is designed into a curved surface, and the display area can be enlarged to a certain extent according to the optical refraction principle, so that the black area between the effective display area 4a of the display device and the outer edge of the device is effectively reduced.
The degree of the black region cut by the present embodiment depends on the size of the black region and the design of the outer peripheral curved surface of the transparent protective cover 5. In some cases, the device can completely cut down the black area, i.e., achieve full screen display of the screen.
The display device 4 is attached to the lower surface of the transparent protective cover 5, and the following two ways are implemented:
the first method comprises the following steps: the display device 4 is attached to the lower surface of the transparent protective cover 5 by means of optical glue. The optical glue has better light transmission, can ensure effective transmission of picture brightness, and can also prevent water vapor from invading to cause the failure of a display device.
And the second method comprises the following steps: the outer edge of the display device 4 is connected to the lower surface of the transparent protective cover 5 through a square glue.
The display device 4 and the transparent protection cover 5 are connected into a whole through the above connection mode, and the waterproof and dustproof effects can be effectively achieved. It is only necessary to mount the display device 4 and the transparent protective cover 5 as a unit on the support member 6.
Fig. 6 and 7 show a preferred construction of the support member 6. Fig. 6(a) shows the structure of the support member 6 when viewed from above, and fig. 6(b) shows the structure of the support member 6 when viewed from below.
As can be seen from fig. 6 and 7, the support member 6 includes a support member side plate 7 and a support member bottom plate 8. The support member side plate 7 is an annular side plate, and the support member bottom plate 8 is connected to the bottom of the support member side plate 7.
The annular side plates shown in fig. 6 and 7 are, for example, square in transverse cross-section, but may also be circular in transverse cross-section, the shape of which is selected in relation to the shape of the display device 4, the transparent protective cover 5.
For example, when the display device 4 and the transparent protective cover 5 are both square, the lateral cross section of the support member side plate 7 is square. If the display device 4 and the transparent protective cover 5 are both circular, the lateral cross-section of the support member side plate 7 is circular.
As shown in fig. 3 and 5, the display device 4 extends downward to the inside of the supporting member side plate 7.
The size of the display device 4 is equal to or slightly smaller than the size of the inner side of the supporting part side plate 7, so that on one hand, the display device 4 can be ensured to extend into the inner side of the supporting part side plate 7, and meanwhile, the gap between the display device and the supporting part side plate is ensured to be as small as possible.
The outer periphery of the lower surface of the transparent protection cover 5 is attached to the top surface of the support member side plate 7 by glue.
By above connected mode difficult to see, the simple structure of each part of display element, assembly process simplify, and effectively reduced the manufacturing cost and the processing degree of difficulty of display element, in addition, display element still has better waterproof dustproof effect.
The support member bottom plate 8 is provided with a connection harness penetration hole 9, so that a connection harness led out from the base unit 3 can be conveniently extended upwards to the lower side of the display device 4 through the connection harness penetration hole 9 and connected with the lower surface of the display device 4.
The connecting harness insertion hole 9 may be one, or two, for example. When two connection harness penetration holes 9 are provided, as shown in fig. 7, the two connection harness penetration holes 9 may be designed to have a symmetrical structure, facilitating processing and assembly.
It should be noted that, although two connection harness insertion holes are designed, the connection harness is inserted through only one of the connection harness insertion holes 9 during installation, as shown in fig. 5.
In a preferred mode, the connecting harness insertion hole 9 is formed at an edge portion of the support member bottom plate 8, as shown in fig. 7.
The support member bottom plate 8 in this embodiment preferably comprises a plurality (e.g., three) of square plates 10 arranged in parallel and spaced apart from each other, and this structural design serves two purposes:
on the one hand, the weight of the support part 6 as a whole can be reduced and on the other hand, the connection with the intermediate unit 2 is facilitated.
Further, in order to provide a better visual sensation, the outer periphery of the lower surface of the transparent protection cover 5 is provided with a light absorbing coating 11, as shown in fig. 16. Here, the outer periphery refers to a region on the lower surface of the transparent protective cover 5 near the outer edge.
The size of the light-absorbing coating region 11 in this embodiment satisfies the following condition:
wherein the inner side edge of the light absorbing coating 11 coincides with the edge of the effective display area 4a of the display device, and the outer side edge of the light absorbing coating 11 coincides with the outer side edge of the lower surface of the transparent protective cover 5.
The sum of the areas of the active display area 4a of the display device and the light absorbing coating 11 is equal to the area of the lower surface of the transparent protective cover.
The light-absorbing coating 11 can effectively block structures, which are not related to display, and stray light and the like inside the device. The sprayed media and color are bounded by effective masking of internal extraneous structures and stray light, with dark, non-fading media being preferred.
The thickness H of the transparent protective cover 5 is related to the size of the transparent protective cover and the effective display area 4a of the display device. The thickness of the transparent protective cover 5 is a value of a distance between a flat portion of the upper surface and the lower surface of the transparent protective cover.
The square display device is taken as an example for explanation:
as shown in fig. 17, the distances between each edge of the effective display area 4a of the display device and the corresponding outer edge of the display device 4 are defined as: d1,d2,d3,d4The smallest of the respective distance values is dminThen d ismin＝min{d1,d2,d3,d4}。
When the thickness of the transparent protective cover 5 is designed to be close to or equal to the minimum value among the respective distance values, the image display effect of the display device 4 after the image magnification is good, and therefore, H ═ d is good according to the optical simulation and the actual display effectmin。
When the display device 4 is designed in a circular shape, a minimum distance value between an edge of the effective display area 4a of the display device and an outer edge of the display device 4 is defined as dmin(ii) a Defining the thickness of the transparent protective cover as H, then H ═ dmin。
In addition, the present embodiment is designed such that the curved surface of the outer periphery of the upper surface of the transparent protection cover 5 is as follows.
Taking a square transparent protective cover as an example:
assuming a vertical section of the transparent protective cover parallel to the edge of the square transparent protective cover 5, a curve 5a is obtained by cutting the transparent protective cover 5 with the section, as shown in fig. 18.
The projection length of the curve 5a in the horizontal plane is L1A projected length in the vertical plane of L2。
Then L is1And L2The size relationship of (A) is as follows: l is2≤L1≤1.3L2E.g. setting L1＝1.2L2。
Of course, if the transparent protection cover is circular, a vertical section passing through the center of the circle of the transparent protection cover is used for intercepting, and the projection lengths of the obtained section of curve in the horizontal plane and the vertical plane also meet the proportional relation.
This embodiment can effectively realize the reduction to the black region through the design to the thickness of transparent safety cover 5 and the curved surface of the periphery of transparent safety cover 5 upper surface, does benefit to the edge display effect who guarantees the picture simultaneously.
In addition, the distance between the display device 4 and the transparent protective cover 5 also affects the display effect. The larger the distance between the two is, the larger the magnification is, but the more the distortion of the display screen is.
The distance d between the display device 4 and the transparent protective cover 5 is in the range 0 < d ≦ 0.3mm, e.g. d ≦ 0.1 mm.
As shown in fig. 8 to 10, a specific structure of the intermediate unit 2 is given. Fig. 8(a) is a schematic structural view of the middle unit 2 when viewed from top to bottom, and fig. 8(b) is a schematic structural view of the middle unit 2 when viewed from bottom to top.
The intermediate unit 2 serves for structural support, including support with the display unit 1 and with the base unit 3.
The middle unit 2 includes a middle unit top plate 12 and a middle unit side plate 13. The middle unit side plate 13 is an annular side plate, and the middle unit top plate 12 is connected to the top of the middle unit side plate 13.
The top panel 12 of the intermediate unit shown in figures 8 to 10 is square and the lateral cross-section of the side panels 13 of the intermediate unit is also square.
A strip-shaped glue groove, for example, strip-shaped glue grooves 12a, 12b, is provided on the upper surface of the middle unit top plate 12, as shown in fig. 8 (a). Wherein, part of the strip-shaped glue grooves are parallel to the arrangement direction of the square plate 10, such as the strip-shaped glue grooves 12 a.
The strip-shaped glue groove 12a is positioned below the square plate 10.
After injecting glue into the strip glue groove 12a, the bottom of the square plate 10 is adhered to the strip glue groove 12 a.
In addition, there are some strip glue grooves perpendicular to the arrangement direction of the square plate 10, such as strip glue grooves 12b, and in this embodiment, two strip glue grooves 12b are preferred and are respectively located inside the corresponding edges of the upper surface of the middle unit top plate 12.
When glue is injected into the strip glue groove 12b, the bottom of the side plate of the support part side plate 7 corresponding to the strip glue groove 12b in the vertical direction and the end of the square plate 10 are stuck to the strip glue groove 12 b.
Above connected mode does benefit to the viscose that realizes display element 1 and middle unit 2 and is connected, and this kind of connected mode can effectively avoid steam and dust to get into between the two to do benefit to and improve the holistic dustproof of device and waterproof grade.
Because the strip-shaped glue groove is positioned on the upper surface of the top plate 12 of the middle unit, glue can be effectively prevented from overflowing to the outside of the device.
A connection harness penetration hole 14 is provided on the middle unit top plate 12, so that the connection harness led out from the base unit 3 is conveniently extended upward through the connection harness penetration hole 14 to below the display device 4 and connected to the lower surface of the display device 4.
The connecting harness insertion hole 14 may be one, for example, or two, of course. When two connection harness penetration holes 14 are provided, as shown in fig. 8(a), the two connection harness penetration holes 14 may be designed to have a symmetrical structure, facilitating processing and assembly.
It should be noted that, although there are two connection harness insertion holes, the connection harness is inserted through only one of the connection harness insertion holes when the connector is mounted. As shown in fig. 8(a), the connection harness insertion hole 14 is located at an edge portion of the middle unit top plate 12 and faces the connection harness insertion hole 9.
Of course, the connection between the display unit 1 and the middle unit 2 is not limited to the adhesive connection, and may be a snap connection, as shown in fig. 6(b), and a claw, such as the claw 15, is provided at the bottom of the support member bottom plate 8 (the square plate 10).
When being installed, the claw 15 is downwardly passed through the connection harness penetration hole 14 and then caught on the lower surface of the middle unit top plate 12. The connection mode can ensure the connection effect of the display unit 1 and the middle unit 2, so that the connection is more reliable.
Of course, the present embodiment may also adopt the above two connection methods at the same time to realize the connection between the display unit 1 and the middle unit 2, and the effect after the connection is the superposition of the connection effects of the above two connection methods.
When the middle unit 2 is designed in a circular configuration (to accommodate the configuration of the display unit), the above strip-shaped glue grooves may be replaced with, for example, circular glue grooves located near the outer edge of the middle unit top plate 12.
The adhesive connection of the display unit 1 to the intermediate unit 2 can also be realized by injecting glue into the circular glue groove.
In addition, in order to realize the positioning of the display unit 1 and the middle unit 2, the following design is also performed:
as shown in fig. 6(b), a positioning block 30 is provided in the middle of the support member bottom plate 8, and a positioning groove 31 is provided in the middle of the middle unit top plate 12, as shown in fig. 8 (a). Wherein, the positioning block 30 is disposed opposite to the positioning groove 31.
When the display unit 1 is combined with the middle unit 2, the positioning block 30 and the positioning groove 31 are used for positioning.
As shown in fig. 8(b) and 10, a switch cap pressing base 16 is provided at the middle of the lower surface of the middle unit top plate 12, and the switch cap pressing base 16 protrudes downward from the lower surface of the middle unit top plate. The switch cap pressing base 16 is provided with a switch cap limiting groove 17.
The switch cap pressing base 16 functions such that when a downward force is applied, the switch cap pressing base 16 can apply a downward pressure to a rubber switch cap 21 positioned at the top in the switch cap limiting groove 17.
As shown in fig. 3, 5, 11 to 14, a specific structure of the base unit 3 is given. The base unit 3 is used for providing an electrical connection interface between the inside and the outside of the device and realizing functions such as electrical on-off control and the like.
As is apparent from the above drawings, the base unit 3 includes a base body 18, a circuit board 19, a push switch 20, a rubber switch cap 21, a socket 22, and a connection harness 23, and the rubber switch cap 21 has a structure shown in fig. 15.
As shown in fig. 11, the base body 18 includes a base body bottom plate 24 and base body side plates 25. Wherein, base body curb plate 25 is the annular curb plate, and base body bottom plate 24 connects in the bottom of base body curb plate 25.
The lateral cross-section of the base body side plate 25 shown in fig. 11 to 14 is square, but may be circular (not shown), and the shape of the base body side plate 25 is adapted to the shape of the display unit 1 and the intermediate unit 2.
The circuit board 19 is mounted on the base body bottom plate 24, and the push switch 20 and the socket 22 are mounted on the circuit board 19, respectively.
One end of the connection harness 23 is connected to the socket 22, and the other end extends upward below the display device 4 via the connection harness penetration hole 14 and the connection harness penetration hole 9 and is connected to the lower surface of the display device 4.
The rubber switch cap 21 is sleeved on the button switch 20 and integrally wraps the button switch.
The top end of the rubber switch cap 21 extends into the switch cap limiting groove 17.
Further, two or more sets of snap units are provided between the intermediate unit side plate 13 and the base body side plate 25. The function of the snap unit is to limit the stroke of the whole of the display unit 1 and the intermediate unit 2 in the vertical direction.
Take one group of buckle units as an example for explanation:
as shown in fig. 9 and 12, the latch unit includes a latch 26 mounted on the bottom of the side plate 13 of the middle unit and a latch 27 mounted on the side of the side plate of the base body, and the latch 26 is provided with a bayonet 28 for inserting the latch 27.
The bayonet 28 is adapted to the shape of the latch 27, for example, both are square.
The dimension (length) of the bayonet 28 in the up-down direction is larger than the dimension (length) of the latch 27 in the up-down direction.
The above design enables the clip 26 to have a certain amount of movement in the vertical direction with respect to the latch 27, so that the whole of the display unit 1 and the intermediate unit 2 can move in the vertical direction with respect to the base unit 3 with a limited stroke.
The principle of realizing the electrical on-off control through the button control in the embodiment is as follows:
when the top of the switch display device is pressed downwards, the upper part of the device moves downwards, the internal mechanism transmits the pressing force to the rubber switch cap 21 and pushes the button switch 20 to move downwards, two ends of the button switch 20 are connected together to realize electrical connection, and the metal pins of the device transmit the on-off signal to other external equipment connected with the device.
Because the rubber switch cap 21 has a certain elasticity, when no pressure is triggered, the rubber switch cap 21 bounces and is propped in the switch cap limiting groove 17, and the buckling unit limits the stroke of the up-and-down movement of the display unit 1 and the supporting unit 2.
In addition, in order to improve the waterproof and dustproof grade of the bottom of the device, the following design is also carried out:
as shown in fig. 13, the base body bottom plate 24 is provided with an annular glue groove 29 at the peripheral edge position, and when glue is injected into the annular glue groove 29, the circuit board 19 is connected with the base body bottom plate 24.
The connection between the circuit board 19 and the button switch 20 and the socket 22 is sealed by glue.
The connection of the connection harness 23 to the socket 22 and the connection of the connection harness to the display device 4 are sealed by glue, respectively.
The base body bottom plate 24 is provided with a pin outlet 32 for the pin of the socket 22 to pass through, and the pin outlet 32 is sealed by glue.
Above design can effectively improve the waterproof dustproof grade of device bottom to improve the holistic protective effect of device. In addition, through above structural design for the holistic assembly convenience of device increases, and assembly efficiency improves.
Of course, the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and it should be noted that any equivalent substitution, obvious modification made by those skilled in the art under the teaching of the present specification fall within the essential scope of the present specification, and the protection of the present invention should be protected.
Claims (10)
1. A switch display device includes a display unit; characterized in that the display unit comprises:
a display device, a transparent protective cover, and a support member;
the display device is connected to the lower surface of the transparent protective cover and extends downwards to the inner side of the supporting part;
the periphery of the lower surface of the transparent protective cover is connected to the top surface of the supporting part;
the periphery of the upper surface of the transparent protective cover is a curved surface, and the part inside the periphery is a plane; the lower surface of the transparent protective cover is a plane.
2. The switch display device according to claim 1,
the display device comprises a liquid crystal display screen or an LED display screen; the transparent protective cover is made of glass materials.
3. The switch display device according to claim 1,
the display device is connected to the lower surface of the transparent protective cover through optical glue or square glue.
4. The switch display device according to claim 1,
the periphery of the lower surface of the transparent protective cover is provided with a light absorption coating;
the inner side edge of the light absorption coating is overlapped with the edge of an effective display area of a display device, and the outer side edge of the light absorption coating is overlapped with the outer side edge of the lower surface of the transparent protection cover;
the sum of the areas of the active display area of the display device and the light absorbing coating is equal to the area of the lower surface of the transparent protective cover.
5. The switch display device according to any one of claims 1 to 4,
the distance d between the display device and the transparent protective cover is more than 0 and less than or equal to 0.3 mm.
6. The switch display device according to any one of claims 1 to 4,
defining the minimum distance value between each edge of the effective display area of the display device and the corresponding outer edge of the display device as dmin(ii) a Defining the thickness value of the transparent protective cover as H; wherein:
h is a distance value between the flat surface portion of the upper surface of the transparent protective cover and the lower surface of the transparent protective cover, and H ═ dmin。
7. The switch display device according to any one of claims 1 to 4,
the transparent protective cover is a square transparent protective cover or a round transparent protective cover;
taking a vertical section of the transparent protective cover parallel to the edge of the square transparent protective cover or passing through the circle center of the round transparent protective cover;
defining the projection length of a section of curve taken from the section in the horizontal plane as L1A projected length in the vertical plane of L2；
Then L is1And L2The size relationship of (A) is as follows: l is2≤L1≤1.3L2。
8. The switch display device according to any one of claims 1 to 4,
the supporting component comprises a supporting component side plate and a supporting component bottom plate which are connected with each other;
wherein, the supporting component side plate is an annular side plate;
the display device extends downwards to the inner side of the side plate of the supporting part; the periphery of the lower surface of the transparent protective cover is connected to the top surface of the supporting component side plate through glue; and a connecting wire harness through hole is formed in the bottom plate of the supporting part.
9. The switch display device according to claim 8, further comprising:
a middle unit and a bottom unit positioned below the display unit;
the middle unit comprises a middle unit top plate and a middle unit side plate which are connected with each other;
the middle unit top plate is provided with a connecting wire harness through hole, and the middle unit side plate is an annular side plate;
the bottom plate of the supporting component is connected with the top plate of the middle unit through adhesive and/or clamping;
a switch cap pressing seat is arranged in the middle of the lower surface of the middle unit top plate, and a switch cap limiting groove is formed in the switch cap pressing seat;
the base unit comprises a base body, a circuit board, a button switch, a rubber switch cap, a socket and a connecting wire harness;
the base body comprises a base body bottom plate and a base body side plate which are connected with each other;
the side plate of the base body is an annular side plate;
the circuit board is arranged on the base body bottom plate, and the button switch and the socket are respectively arranged on the circuit board;
one end of the connecting wire harness is connected to the socket, and the other end of the connecting wire harness extends upwards to the lower part of the display device through the connecting wire harness through hole on the top plate of the middle unit and the connecting wire harness through hole on the bottom plate of the supporting component and is connected to the lower surface of the display device;
the rubber switch cap is sleeved on the button switch and integrally wraps the button switch;
the top end of the rubber switch cap extends into the switch cap limiting groove;
at least two groups of buckle units are arranged between the middle unit side plate and the base body side plate;
the buckle unit is including installing in the buckle of middle unit curb plate bottom and installing in the fixture block of base body curb plate lateral part, be equipped with the confession on the buckle fixture block male bayonet socket, wherein:
the shape of the bayonet is matched with that of the clamping block, and the size of the bayonet along the vertical direction is larger than that of the clamping block along the vertical direction.
10. The switch display device according to claim 9,
the circuit board is connected with the base body bottom plate through glue injected into the annular glue groove; the connection parts of the circuit board, the button switch and the socket are respectively connected in a sealing way through glue;
the connection harness and the socket and the connection part of the connection harness and the display device are respectively connected in a sealing mode through glue;
the base body bottom plate is provided with a pin outlet hole for the socket pin to extend out, and the pin outlet hole is connected in a sealing mode through glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020154740.1U CN210865428U (en) | 2020-02-07 | 2020-02-07 | Switch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020154740.1U CN210865428U (en) | 2020-02-07 | 2020-02-07 | Switch display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210865428U true CN210865428U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020154740.1U Active CN210865428U (en) | 2020-02-07 | 2020-02-07 | Switch display device |
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| Country | Link |
|---|---|
| CN (1) | CN210865428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161180A (en) * | 2021-04-30 | 2021-07-23 | 成都戎盛科技有限公司 | Display switch device |
| CN113161181A (en) * | 2021-04-30 | 2021-07-23 | 成都戎盛科技有限公司 | Frameless display switch device |
-
2020
- 2020-02-07 CN CN202020154740.1U patent/CN210865428U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161180A (en) * | 2021-04-30 | 2021-07-23 | 成都戎盛科技有限公司 | Display switch device |
| CN113161181A (en) * | 2021-04-30 | 2021-07-23 | 成都戎盛科技有限公司 | Frameless display switch device |
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