CN215675059U

CN215675059U - Connection structure convenient to lamp plate and button dismouting and thermal printer thereof

Info

Publication number: CN215675059U
Application number: CN202121809869.2U
Authority: CN
Inventors: 刘浪; 刘丹
Original assignee: Zhuhai Xinye Electronic Technology Co Ltd
Current assignee: Zhuhai Xinye Electronic Technology Co Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-01-28
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a connecting structure convenient for assembling and disassembling a lamp panel and a key and a thermal printer thereof, which comprise a base, a middle frame shell, a touch key and a PCB lamp panel, wherein the base is connected with the lower end of the middle frame shell; the middle upper part of the front side surface of the middle frame shell is provided with a key hole which is communicated from front to back and used for installing a touch key; interval indicating holes which are arranged at intervals into a plurality of cavities and are respectively matched with each indicating lamp on a PCB lamp panel independently to prevent light mixing are formed in the front side surface of the middle frame shell beside the key hole, and a lamp cover for sealing the whole interval indicating hole is covered on the front side surface of the middle frame shell; the PCB lamp panel is inserted into the inner side wall of the middle frame shell corresponding to the key hole and the interval indicating hole and is limited and fixed through the rib buckles arranged on the base and the inner wall of the middle frame shell; overall structure is simple, connect simple and convenient reliable, effectively practices thrift cost of labor and material cost, prevents lamp lid department cluster light.

Description

Connection structure convenient to lamp plate and button dismouting and thermal printer thereof

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lamp panel and key connection technology, in particular to a connection structure facilitating disassembly and assembly of a lamp panel and a key and a thermal printer thereof.

[ background of the utility model ]

The lamp panel and the keys are used as a display and control terminal of the equipment, become an indispensable display and control connecting piece and are widely used at present. Especially in the thermal printer trade, in the assembly process that lamp plate and button were carried out to printer front side casing, the design is reasonable inadequately among the prior art, often needs to increase a dedicated mounting alone and use the screw to fix the lamp plate, not only increases material cost, still causes the erection joint more complicated.

Meanwhile, in the connecting structure of the transparent indicating lamp cover, the lamp panel and the keys, when the indicating lamp is used, in order to prevent the light crosstalk phenomenon in a light-transmitting indicating area on the control panel, the light crosstalk means that two adjacent light-emitting lamp beads are lighted, and light generated by the light-emitting lamp beads is reflected to the part of the light-off lamp beads in a light-off state; this phenomenon makes it difficult for a user to determine what condition the transparent indication specifically indicates, affects the user's adjustment of the device, and is difficult to match a satisfactory functional state during use; for this reason, structural improvement and design are required on the added fixing member, which further increases the complexity of the fixing member structure and is inconvenient for manufacturing and installation and fixation. Therefore, the existing lamp panel and key connection structure are required to be readjusted and designed.

[ Utility model ] content

The utility model provides a connecting structure which is simple in structure, simple and reliable in connection, capable of effectively saving labor cost and material cost and preventing light crosstalk at a lamp cover and convenient for assembling and disassembling a lamp panel and a key, and a thermal printer thereof.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a connecting structure convenient for assembling and disassembling a lamp panel and keys comprises a base, a middle frame shell, touch keys and a PCB lamp panel, wherein the base is connected to the lower end of the middle frame shell;

the front side surface of the middle frame shell is provided with a key hole which is communicated from front to back and used for installing the touch key;

interval indicating holes which are arranged at intervals into a plurality of cavities and are respectively matched with each indicating lamp on the PCB lamp panel independently to prevent light mixing are formed in the front side face of the middle frame shell beside the key hole, and lamp covers used for sealing the whole interval indicating holes are covered on the front side face of the middle frame shell;

the PCB lamp plate corresponds the button hole with interval pilot hole cartridge in center shell inside wall, and pass through the base with the muscle that center shell inner wall set up is detained spacing fixedly.

Furthermore, the upper end and the lower end of the lamp cover are respectively extended with an elastic clamping hook which penetrates through the upper end and the lower end of the interval indicating hole in the front side face of the middle frame shell and is clamped on the inner wall of the middle frame shell.

Further, the lamp cover is integrally formed by adopting a transparent or semitransparent material.

Furthermore, the touch keys are sleeved in the key holes from the outer side of the inner wall of the middle frame shell, the left and right sides of each corresponding touch key respectively extend outwards and integrally to form elastic cantilevers which are fixed on rib plates formed on the inner wall of the middle frame shell and used for elastic bouncing reset and left and right limiting and fixing after the touch keys are pressed, and limiting clamping grooves for limiting and fixing the end parts of the two elastic cantilevers are formed in the rib plates on the inner wall of the middle frame shell corresponding to the two sides of the key holes.

Furthermore, the periphery of key hole and interval indicator hole on the center shell inside wall is equipped with will be by lower supreme cartridge the upside of PCB lamp plate, left side and right side are pressed respectively and are buckled fixed top side and singly collude and press knot gusset plate, left side and singly collude and press knot gusset plate and right side and collude and press the gusset plate, base inside wall top side still upwards extends to be equipped with when accepting the frame shell lower extreme, press and detain fixed bottom side and singly collude and press knot gusset plate to PCB lamp plate downside.

Furthermore, two ends of the inner side of the base are respectively provided with a screw connecting hole, and the base is respectively connected and fixed at the lower end of the middle frame shell through two screws which are respectively arranged in the screw connecting holes in a penetrating manner.

The utility model provides a thermal printer, includes base and center shell, adopt foretell connection structure convenient to lamp plate and button dismouting on base and the center shell.

The utility model has the beneficial effects that:

the utility model is applied to a thermal printer, the front side surface of the middle frame shell at the lower side of the key hole is provided with the interval indicating hole which is arranged into a plurality of cavities at intervals, each cavity on the interval indicating hole is respectively matched with each indicating lamp on the PCB lamp panel independently, under the lighting state of the corresponding indicating lamp on the PCB lamp panel, light rays emitted to adjacent directions are shielded by the interval rib plates, only one light ray is projected forwards through the adjacent interval rib plates, the light ray crosstalk mixing of the adjacent indicating lamps is effectively prevented, the light crosstalk phenomenon is avoided, the light transmission indicating effect on the lamp cover is clear and obvious in the using process of a user, and the accurate adjustment is convenient for the user.

Simultaneously, the periphery of key hole and interval indicator hole on the center shell inside wall is equipped with the upside with the PCB lamp plate of cartridge respectively, the top side that left side and right side were pressed to detain fixed is singly colluded and is pressed the knot gusset, the gusset is detained to singly colluding in the left side and is pressed to detain gusset and the right side and collude and press the knot gusset, and base inside wall top side still upwards extends to be equipped with and accepts when frame shell lower extreme, press the bottom side that detains fixed to PCB lamp plate downside and singly collude and press the knot gusset, and like this, overall structure is simple, connect portably reliably, effectively practice thrift cost of labor and material cost.

[ description of the drawings ]

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a front perspective view of the lamp cover and center housing of the present invention;

FIG. 3 is a schematic cross-sectional view of the center housing of the present invention;

FIG. 4 is a schematic rear view of the bezel housing and the touch button of the present invention;

FIG. 5 is a schematic perspective view of the utility model partially assembled;

FIG. 6 is a rear perspective view of the present invention;

fig. 7 is a cross-sectional assembly structure diagram of the present invention.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A connecting structure convenient for assembling and disassembling a lamp panel and a key is applied to a thermal printer and comprises a base l, a middle frame shell 2, a touch key 3 and a PCB lamp panel 4, wherein the base l is connected with the lower end of the middle frame shell 2; the middle upper part of the front side surface of the middle frame shell 2 is provided with a key hole 5 which is communicated from front to back and used for installing the touch key 3; interval indicating holes 6 which are arranged into three cavities at intervals and are respectively matched with each indicating lamp on the PCB lamp panel 4 independently to prevent light mixing are formed in the front side surface of the middle frame shell 2 on the lower side of the key hole 5, and a lamp cover 7 for sealing the whole interval indicating hole 6 is covered on the front side surface of the middle frame shell 2; PCB lamp plate 4 corresponds

key hole

5 and 6 cartridge of interval indicator hole in 2 inside walls of center frame shell to detain spacing fixedly through the muscle that base l and 2 inner walls of center frame shell set up.

During the use, under the state was lighted to corresponding pilot lamp on PCB lamp plate 4, the light of dispersing to adjacent direction was sheltered from by interval gusset 8, only throws a branch of light towards the place ahead through adjacent interval gusset 8, prevents effectively that adjacent pilot lamp light cluster light from mixing, has avoided the cluster light phenomenon, and the user is in the use, and the printing opacity indicating effect on the lamp lid 7 is clear, obvious, and the user of being convenient for carries out accurate regulation.

As shown in fig. 2, 3 and 7, the lamp cover 7 is integrally formed of a translucent material, and elastic hooks 70 which penetrate through the upper and lower end portions of the interval indicating hole 6 on the front side surface of the middle frame housing 2 and are fastened to the inner wall of the middle frame housing 2 extend from the upper and lower ends of the lamp cover 7, respectively.

As shown in fig. 1 and 4, the touch keys 3 are sleeved in the key holes 5 and are outwardly ejected from the inner wall side of the middle frame shell 2, the left and right sides of the corresponding touch keys 3 respectively extend outwards and integrally to be fixed on rib plates formed on the inner wall side of the middle frame shell 2, elastic cantilevers 30 used for elastic bouncing and resetting after the touch keys 3 are pressed and limiting and fixing left and right are arranged on the rib plates corresponding to the two sides of the key holes 5 on the inner wall of the middle frame shell 2, limiting and fixing clamping grooves 8 for limiting and fixing the end parts of the two elastic cantilevers 30 are arranged on the rib plates, and meanwhile, the elastic cantilevers 30 enable key switches on the PCB lamp panel to have hand feeling when the touch keys 3 are pressed.

As shown in fig. 1, 5 and 6, a top side single hooking and pressing rib plate 9, a left side single hooking and pressing rib plate 10 and a right side single hooking and pressing rib plate 11 which are respectively fastened and fixed on the upper side, the left side and the right side of the PCB lamp panel 4 inserted from bottom to top are arranged on the inner side wall of the middle frame shell 2 at the peripheries of the key hole 5 and the interval indication hole 6. And a bottom side single-hook press-buckling rib plate 12 which is used for pressing and buckling the lower side of the PCB lamp panel 4 to be fixed when the top side of the inner side wall of the base I extends upwards and is connected with the lower end of the frame shell. And the two ends of the inner side of the base l are respectively provided with a screw connecting hole 13, the base l is respectively sleeved in the screw connecting holes 13 through two screws to be fixedly connected with the lower end of the middle frame shell 2, and the pressing and buckling fixation of the bottom side single-hook pressing and buckling rib plate 12 on the lower side of the PCB lamp panel 4 is realized. Therefore, the whole structure is simple, the connection is simple and reliable, and the labor cost and the material cost are effectively saved.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, and all equivalent changes in shape, structure and principle of the utility model should be covered by the protection scope of the present invention.

Claims

1. A connecting structure convenient for assembling and disassembling a lamp panel and keys comprises a base, a middle frame shell, touch keys and a PCB lamp panel, wherein the base is connected to the lower end of the middle frame shell; the method is characterized in that:

2. The connection structure convenient for the lamp panel and the key to be assembled and disassembled according to claim 1, which is characterized in that: the upper end and the lower end of the lamp cover are respectively extended with an elastic clamping hook which penetrates through the upper end part and the lower end part of the interval indicating hole in the front side surface of the middle frame shell and is clamped on the inner wall of the middle frame shell.

3. The connection structure convenient for the lamp panel and the key to be assembled and disassembled according to claim 1 or 2, which is characterized in that: the lamp cover is integrally formed by adopting transparent or semitransparent materials.

4. The connection structure convenient for the lamp panel and the key to be assembled and disassembled according to claim 1, which is characterized in that: the touch keys are sleeved in the key holes from the outer side of the inner wall of the middle frame shell, the left and right sides of the corresponding touch keys respectively extend outwards and integrally to form elastic cantilevers which are fixed on rib plates formed on the inner wall of the middle frame shell and used for elastic bouncing reset and left and right limiting and fixing after the touch keys are pressed, and limiting clamping grooves for limiting and fixing the end parts of the two elastic cantilevers are arranged on the rib plates on the inner wall of the middle frame shell corresponding to the two sides of the key holes.

5. The connection structure convenient for the lamp panel and the key to be assembled and disassembled according to claim 1, which is characterized in that: the periphery of key hole and interval pilot hole is equipped with will be by lower supreme cartridge on the center shell inside wall upside, left side and the right side of PCB lamp plate are pressed respectively and are buckled fixed top side and singly collude and press knot gusset, left side and singly collude and press knot gusset and right side and collude and press knot gusset, base inside wall top side still upwards extends to be equipped with and accepts when frame shell lower extreme, press to buckle fixed bottom side and singly collude and press knot gusset to PCB lamp plate downside.

6. The connection structure convenient to lamp plate and button dismouting of claim 1, its characterized in that: the base is provided with screw connecting holes at two ends of the inner side of the base respectively, and the base is fixedly connected to the lower end of the middle frame shell in a bearing mode through two screws which are respectively arranged in the screw connecting holes in a penetrating mode.

7. A thermal printer comprises a base and a middle frame shell, and is characterized in that: the base and the middle frame shell are provided with the connecting structure convenient for the lamp panel and the key to be disassembled and assembled, and the connecting structure is as claimed in any one of claims 1 to 6.