Mounting structure of PCB (Printed Circuit Board) lamp panel and middle frame and bill printer

Abstract

The utility model provides a PCB lamp panel and middle frame installation structure and bill printer, including middle frame, base and PCB lamp panel, the inner wall of middle frame is molded with first fixed part, the inside of base is formed with second fixed part corresponding to first fixed part, when base is assembled on middle frame, PCB lamp panel is limited and fixed between first fixed part and second fixed part. The PCB lamp panel is assembled with the middle frame and the base without screws, during installation, the PCB lamp panel is pushed into the first fixing groove from top to bottom to be pre-tightened, then the middle frame is covered on the base, the second fixing groove is clamped into the upper end of the PCB lamp panel, and the PCB lamp panel is fixed together. And during disassembly, only directional pushing-out is needed, a screw hole punching process is not needed, the disassembly and assembly convenience is improved, and the disassembly and assembly time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of printers, and in particular relates to an installation structure of a PCB light board and a middle frame, and a ticket printer. Background Art

[0002] A receipt printer is a special type of printer used to print receipts. Receipt printers can print receipts of different sizes and types as needed, and are characterized by high speed, high quality, and strong stability. Receipt printers are widely used in retail, logistics, medical, manufacturing and other fields.

[0003] The PCB light board in the existing receipt printer is still locked in the middle frame by traditional screw fixing, which is troublesome to assemble and inconvenient to disassemble. Utility Model Content

[0004] The purpose of the utility model is to provide a PCB light board and middle frame installation structure and a receipt printer to solve the problems raised in the above background technology.

[0005] In view of this, the utility model provides an installation structure of a PCB light board and a middle frame, comprising a middle frame, a base and a PCB light board, wherein the inner wall of the middle frame is formed with a first fixing portion, and a second fixing portion corresponding to the first fixing portion is formed inside the base, and when the base is assembled on the middle frame, the PCB light board is limited and fixed between the first fixing portion and the second fixing portion.

[0006] A more preferred technical solution of the present utility model is that the first fixing part is two first fixing blocks formed on the inner wall of the middle frame, and a first fixing groove is formed between the two first fixing blocks. The PCB light board is plugged into the first fixing groove along the height direction of the middle frame, and the two sides of the PCB light board are attached to the inner wall of the first fixing groove.

[0007] A more preferred technical solution of the present invention is that the cross section of the first fixing block is L-shaped.

[0008] A more preferred technical solution of the present invention is that the second fixing portion is a second fixing block formed on the base, and a second fixing groove is formed on the second fixing block. When the base is assembled on the middle frame, the second fixing groove clamps the upper end of the PCB lamp board.

[0009] A more preferred technical solution of the present utility model is that a through hole is further provided on the middle frame, the through hole is arranged up and down with the first fixing part, and the PCB lamp board has a through hole corresponding to the lamp bead.

[0010] A receipt printer includes a mounting structure of a PCB light board and a middle frame as described in the above technical solution.

[0011] The beneficial effects of the utility model are:

[0012] No screws are required to assemble the PCB light board, the middle frame and the base. During installation, the PCB light board is pushed from top to bottom into the first fixing groove for pre-tightening, and then the base is covered with the middle frame, and the second fixing groove is inserted into the upper end of the PCB light board to fix the PCB light board together; when disassembling, it can be pushed out in the direction without the need for screw hole drilling, which improves the convenience of disassembly and assembly and reduces the time of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the installation structure of a PCB light board and a middle frame;

[0014] Figure 2 It is a cross-sectional schematic diagram of a mounting structure of a PCB light board and a middle frame;

[0015] Figure 3 The figure is a schematic diagram of the exploded structure of the installation structure of a PCB light board and a middle frame. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0017] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0019] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0020] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or still includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0021] Embodiment 1:

[0022] See also Figure 1-Figure 3 , this embodiment provides a mounting structure of a PCB light board and a middle frame, including a middle frame 1, a base 2 and a PCB light board 3, the PCB light board 3 is assembled in the middle frame 1 and the base 2, and the base 2 is assembled on the middle frame 1.

[0023] Specifically, a first fixing portion is formed on the inner wall of the middle frame 1, and the first fixing portion is two first fixing blocks 10 formed on the inner wall of the middle frame 1. A first fixing groove 11 is formed between the two first fixing blocks 10. The width of the first fixing groove 11 is adapted to the width of the PCB light board 3. The PCB light board 3 is plugged into the first fixing groove 11 along the height direction of the middle frame 1, and both sides of the PCB light board 3 fit the inner wall of the first fixing groove 11.

[0024] More specifically, the first fixing block 10 has an L-shaped cross section, and when the PCB lamp board 3 is inserted into the first fixing groove 11 , it prevents the PCB lamp board 3 from sliding out of the first fixing groove 11 , thereby limiting the position in the horizontal direction.

[0025] In addition, a second fixing portion corresponding to the first fixing portion is formed inside the base 2. The second fixing portion is a second fixing block 20 formed on the base 2. A second fixing groove 21 is formed on the second fixing block 20. The second fixing groove 21 clamps the upper end of the PCB light board 3. When the base 2 is assembled on the middle frame 1, the PCB light board 3 is limited and fixed between the first fixing portion and the second fixing portion.

[0026] In addition, a through hole 12 is provided on the middle frame 1, and the through hole 12 is arranged above and below the first fixed part. The PCB light board 3 has a lamp bead 30 corresponding to the through hole 12. The light status of the lamp bead 30 of the PCB light board 3 can be intuitively seen through the through hole 12 from the outside of the middle frame 1, so that the normal working status of the PCB light board 3 can be intuitively known.

[0027] It can be seen that no screws are required for the assembly between the PCB light board 3 and the middle frame 1 and the base 2. During installation, the PCB light board 3 is pushed from top to bottom into the first fixing groove 11 for pre-tightening, and then the base 2 covers the middle frame 1, and the second fixing groove 21 is inserted into the upper end of the PCB light board 3 to fix the PCB light board 3 together; when disassembling, it can be pushed out in the direction without the need for screw hole drilling process, which improves the convenience of disassembly and assembly and reduces the disassembly and assembly time.

[0028] Example 2

[0029] Another embodiment provides a receipt printer, which uses a mounting structure of a PCB light board 3 and a middle frame 1 in the above embodiment.

[0030] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A mounting structure of a PCB light board and a middle frame, characterized in that: It includes a middle frame, a base and a PCB light board. The inner wall of the middle frame is formed with a first fixing part, and the inside of the base is formed with a second fixing part corresponding to the first fixing part. When the base is assembled on the middle frame, the PCB light board is limited and fixed between the first fixing part and the second fixing part.

2. The installation structure of a PCB light board and a middle frame according to claim 1, characterized in that: The first fixing portion is two first fixing blocks formed on the inner wall of the middle frame, and a first fixing groove is formed between the two first fixing blocks. The PCB light board is plugged into the first fixing groove along the height direction of the middle frame, and the two sides of the PCB light board are attached to the inner wall of the first fixing groove.

3. The installation structure of a PCB light board and a middle frame according to claim 2, characterized in that: The first fixing block has an L-shaped cross section.

4. The installation structure of a PCB light board and a middle frame according to claim 2, characterized in that: The second fixing portion is a second fixing block formed on the base, and a second fixing groove is formed on the second fixing block. When the base is assembled on the middle frame, the second fixing groove clamps the upper end of the PCB lamp board.

5. The installation structure of a PCB light board and a middle frame according to claim 1, characterized in that: The middle frame is also provided with a through hole, the through hole is arranged up and down with the first fixing part, and the PCB lamp board has a through hole corresponding to the lamp bead.

6. A receipt printer, characterized in that: A mounting structure of a PCB light board and a middle frame comprising the structure described in any one of claims 1 to 5.

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