CN209096272U - A kind of electrostatic prevention structure of thermal printer cassette - Google Patents
A kind of electrostatic prevention structure of thermal printer cassette Download PDFInfo
- Publication number
- CN209096272U CN209096272U CN201821720220.1U CN201821720220U CN209096272U CN 209096272 U CN209096272 U CN 209096272U CN 201821720220 U CN201821720220 U CN 201821720220U CN 209096272 U CN209096272 U CN 209096272U
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- China
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- thermal printer
- conduct piece
- metal
- conducting pad
- compression springs
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Abstract
The utility model relates to thermal printer technical fields.The utility model discloses a kind of electrostatic prevention structures of thermal printer cassette, including print head assembly, metal compression springs, flexible circuit board, motor metal shell, machine core driving plate, conducting pad and conduct piece, the metal compression springs conduction contradicts on print head assembly, the conducting pad is fastened on metal compression springs and is connected electrically, the conduct piece is pressed on motor metal shell and is electrically connected with conducting pad and motor metal shell respectively by conducting pad, and the conduct piece passes through the inner ground route of flexible circuit board and being electrically connected to ground for machine core driving plate.Electrostatic on print head assembly and metal shell motor can be simply and effectively conducting on the ground wire of machine core driving plate by the utility model, to effectively eliminate the electrostatic on print head assembly and metal shell motor, the antistatic effect for improving thermal printer, guarantees the life of product of thermal printer.
Description
Technical field
The utility model belongs to thermal printer technical field, more particularly to a kind of antistatic knot of thermal printer cassette
Structure.
Background technique
Thermal printer is easy to produce a large amount of electrostatic in print procedure, these electrostatic treatments are improper often to destroy installation
Chip in the PCB circuit board of thermal printing head influences the service life of thermal printer.One of traditional electrostatic prevention structure,
As shown in figure 1 and 2: be print head metallic heat radiating plate 2 ' is connected with the ground wire on print head 1 ' by metal riveting part 3 ', then
It is conducting on the ground wire of thermal printer cassette driving plate by welding flexible circuitry ground wire connection；The disadvantage is that riveting process is complicated
It is at high cost, the difficult dismantling of maintenance replacement.The two of traditional electrostatic prevention structure, as shown in figures 3 and 4: being will by metallic stamping pieces 4 '
Print head metallic heat radiating plate 2 ' is connected with the ground wire on print head 1 ', then is conducting to temperature-sensitive by welding flexible circuitry ground wire connection
On the ground wire of printer core driving plate；The disadvantage is that: it is at high cost to need to increase stamping die, and it is poor easily to disengage fastness.
Summary of the invention
The purpose of this utility model is to provide a kind of electrostatic prevention structures of thermal printer cassette to solve above-mentioned presence
The problem of.
To achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of electrostatic prevention structure of thermal printer cassette, including print head assembly, metal compression springs, flexible circuit board, motor
Metal shell, machine core driving plate, conducting pad and conduct piece, the metal compression springs conduction contradicts on print head assembly, described
Conducting pad is fastened on metal compression springs and is connected electrically, and the conduct piece is pressed on motor metal shell by conducting pad
And be electrically connected respectively with conducting pad and motor metal shell, the conduct piece by the inner ground route of flexible circuit board with
Machine core driving plate is electrically connected to ground.
Further, the conducting pad is metal wire spring.
Further, the conduct piece is made of metal material.
Further, the conduct piece is made of copper product.
Further, the conduct piece and flexible circuit board are structure as a whole setting.
Further, the conduct piece is realized by the naked copper portion in flexible circuit board.
Further, the metal compression springs are cone-shaped structure.
The advantageous effects of the utility model:
Electrostatic on print head assembly and metal shell motor can be simply and effectively conducting to temperature-sensitive by the utility model
On the ground wire of printer core driving plate, to effectively eliminate the electrostatic on print head assembly and metal shell motor, heat is improved
The antistatic effect of quick printer, guarantees the life of product of thermal printer, and has the advantages of simple structure and easy realization, at low cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one of traditional electrostatic prevention structure；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is two structural schematic diagram of traditional electrostatic prevention structure；
Fig. 4 is the B-B cross-sectional view of Fig. 3；
Fig. 5 is the structural schematic diagram of the utility model specific embodiment.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in figure 5, a kind of electrostatic prevention structure of thermal printer cassette, including print head assembly 1, metal compression springs 2, flexibility
Wiring board 5, motor metal shell 4, machine core driving plate 6, conducting pad 3 and conduct piece 51, the conflict of metal compression springs 2 are printing
It is electrically connected in head assembly 1 with print head assembly 1, to the electrostatic guide on print head assembly 1 be come out, using metal
Pressure spring 2 is conductively connected by way of crimping with print head assembly 1, both can use the metal compression springs of existing thermal printer cassette,
Component is saved, and is in electrical contact well, is easily achieved simultaneously, reduces cost.
In this specific embodiment, metal compression springs 2 are preferably cone-shaped structure, the big end and print head assembly 1 of metal compression springs 2
It contradicts, but not limited to this, in other embodiments, metal compression springs 2 can also use other existing structures, such as column, this
It is that those skilled in the art can realize easily, no longer describes in detail.
In this specific embodiment, metal compression springs 2 are contradicted on the metallic heat radiating plate of print head assembly 1, improve antistatic effect
Fruit.
The conducting pad 3 is fastened on metal compression springs 2 and is electrically connected with metal compression springs 2, and the conduct piece 51 is conductive
Casting die 3 is pressed on motor metal shell 4 and is electrically connected respectively with conducting pad 3 and motor metal shell 4, the conduct piece 51
It is electrically connected by the inner ground route 52 of flexible circuit board 5 with the ground wire 61 of machine core driving plate 6.
In this specific embodiment, conducting pad 3 is metal wire spring, can be accordingly bent to form by metal strip, metal
Item preferably uses hardness larger and there is the metal strip of certain elasticity to make to lead so as to provide larger pressure to conduct piece 51
The electrical contact of electric part 51 and metal wire spring 3 and motor metal shell 4 is more preferable.One end of metal wire spring 3 is fastened on metal compression springs 2
On small end, conducting pad 3 is pressed on outside motor metal by the other end of metal wire spring 3 under the resilient force of metal compression springs 2
On shell 4.
Conduct piece 51 using conducting pad 3 be pressed on motor metal shell 4 and respectively with conducting pad 3 and motor metal
Shell 4 is electrically connected, and has both met good conductive contact, and installs simple, consumptive material province, it is easy to accomplish.
Certainly, in other embodiments, conducting pad 3 can also use other structures, as long as being able to achieve and metal compression springs 2
It is conductively connected, and conduct piece 51 is pressed on motor metal shell 4, this is that those skilled in the art can realize easily
, no longer describe in detail.
In this specific embodiment, conduct piece 51 is realized that is, flexible circuit board 5 is set by the naked copper portion in flexible circuit board 5
Have naked copper portion 51, the upper and lower surface in naked copper portion 51 has exposed layers of copper, and respectively with the inner ground route of flexible circuit board 5
52 electrical connections, conduct piece 51 are realized by the naked copper portion in flexible circuit board 5, are not necessarily to still further wiring, are not only made component less,
And installation is easier.
Certainly, in other embodiments, conduct piece 51 is also possible to a discrete metalwork, such as copper sheet, aluminium flake, this
It is that those skilled in the art can realize easily, no longer describes in detail.
Print head assembly 1 generate electrostatic by metal compression springs 2, conducting pad 3, conduct piece 51, flexible circuit board 5 it is interior
Portion's ground path 52 and the ground wire of machine core driving plate 6 61 are conducted to the earth, the electrostatic of motor metal shell by conduct piece 51,
The inner ground route 52 of flexible circuit board 5 and the ground wire 61 of machine core driving plate 6 are conducted to the earth, beat to effectively eliminate
The electrostatic on head assembly and metal shell motor is printed, the antistatic effect of thermal printer is improved, guarantees the production of thermal printer
The product service life, and have the advantages of simple structure and easy realization, it is at low cost.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (7)
1. a kind of electrostatic prevention structure of thermal printer cassette, including print head assembly, metal compression springs, flexible circuit board, motor gold
Belong to shell and machine core driving plate, it is characterised in that: further include conducting pad and conduct piece, the metal compression springs conduction conflict is being beaten
It prints in head assembly, the conducting pad is fastened on metal compression springs and is connected electrically, and the conduct piece is set by conducting pad pressure
It is electrically connected respectively with conducting pad and motor metal shell on motor metal shell, the conduct piece passes through flexible circuit board
Inner ground route and machine core driving plate be electrically connected to ground.
2. the electrostatic prevention structure of thermal printer cassette according to claim 1, it is characterised in that: the conducting pad is gold
Belong to coil spring.
3. the electrostatic prevention structure of thermal printer cassette according to claim 1, it is characterised in that: the conduct piece is by metal
Material is made.
4. the electrostatic prevention structure of thermal printer cassette according to claim 3, it is characterised in that: the conduct piece is by copper material
Material is made.
5. the electrostatic prevention structure of thermal printer cassette according to claim 4, it is characterised in that: the conduct piece and flexibility
Wiring board is structure as a whole setting.
6. the electrostatic prevention structure of thermal printer cassette according to claim 5, it is characterised in that: the conduct piece is by flexibility
Naked copper portion on wiring board realizes.
7. the electrostatic prevention structure of thermal printer cassette according to claim 1, it is characterised in that: the metal compression springs are circle
Cone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821720220.1U CN209096272U (en) | 2018-10-23 | 2018-10-23 | A kind of electrostatic prevention structure of thermal printer cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821720220.1U CN209096272U (en) | 2018-10-23 | 2018-10-23 | A kind of electrostatic prevention structure of thermal printer cassette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209096272U true CN209096272U (en) | 2019-07-12 |
Family
ID=67156168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821720220.1U Active CN209096272U (en) | 2018-10-23 | 2018-10-23 | A kind of electrostatic prevention structure of thermal printer cassette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209096272U (en) |
-
2018
- 2018-10-23 CN CN201821720220.1U patent/CN209096272U/en active Active
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| GR01 | Patent grant |