CN2109053U - Electrical equipment shell with anti-seismic bar - Google Patents
Electrical equipment shell with anti-seismic bar Download PDFInfo
- Publication number
- CN2109053U CN2109053U CN 91230936 CN91230936U CN2109053U CN 2109053 U CN2109053 U CN 2109053U CN 91230936 CN91230936 CN 91230936 CN 91230936 U CN91230936 U CN 91230936U CN 2109053 U CN2109053 U CN 2109053U
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- CN
- China
- Prior art keywords
- casing
- antidetonation
- muscle
- circuit board
- electric equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to an electrical equipment shell with an anti-seismic bar, comprising a face frame, a back cap, etc. The utility model is characterized in that the installing component of the printed circuit board for a device combining unit inside the shell is provided with the anti-seismic bar. The utility model has the advantages that the electrical equipment shell uses a paper printed circuit board to replace the printed circuit board coated with a glass cloth in a monochrome television receiver, the electrical equipment shell can eliminate the installing return frame of the printed circuit board in a color television, and the electrical equipment shell is favorable for reducing the producing cost, improving the product quality and raising the installing efficiency.
Description
The utility model relates to a kind of electric equipment casing, particularly television receiver casing of being used for.
Existing black and white television receiver, needs for load-bearing, antidetonation, its components and parts assembled unit printed circuit board (PCB) paper printing circuit boards that are covered with glass wool cloth that adopt more, the price of sort circuit plate is higher than simple paper printing circuit board, and, because the easy moisture absorption of glass wool cloth, formation bubble, the board circuit part is heaved, separate, finally cause circuit board to be scrapped with substrate, perhaps, the television set electric property worsens.Existing color TV set generally adopts the paper printing circuit board, yet, for load-bearing, the shock resistance that improves circuit board, generally be that circuit board is installed in earlier on the widely different frame, and then the casing of packing into, this had both increased production cost, increased erector's consumption again.The electric equipment of other application of printed circuit also has analogue.
The utility model is at above problems of the prior art, and a kind of electric equipment casing, particularly television receiver casing that has the antidetonation muscle is provided.
Task of the present utility model is to realize like this.Electricity equipment casing as the television receiver casing, generally is made up of face frame, bonnet etc., and the installation position of the components and parts assembled unit printed circuit board (PCB) in casing is provided with plastics antidetonation muscle.
Fig. 1 is the utility model casing cutaway view
Fig. 2 is the utility model casing face frame rearview
Fig. 3 is the cross section of the utility model casing antidetonation muscle
Now the utility model is described in further detail in conjunction with the accompanying drawings.
Described casing is made up of face frame (1), bonnet (2) etc., and the bottom surface, installation position of the components and parts assembled unit printed circuit board (PCB) (3) in casing is provided with more than one plastics antidetonation muscle (4).Antidetonation muscle (4) is consistent with the depth direction of casing face frame (1) or bonnet (2) at length direction, its cross section is a triangle, it can be isosceles triangle, it also can be isosceles triangle not, the inner chamber bottom surface of the leg-of-mutton end with face frame (1), bonnet (2) flushes, and height flushes with the mounting plane of components and parts assembled unit printed circuit board (PCB) (3).As an embodiment, the long 2.5-3.5 millimeter in the end in black and white television set casing antidetonation muscle (4) cross section, high 8-12 millimeter, top arc radius 0.1-0.2 millimeter.The material of antidetonation muscle (4) is plastics, as polypropylene, polystyrene, and high impact polystyrene preferably, as making by same material with casing, then can one-shot forming in injection moulding process.The antidetonation muscle also can be made the antidetonation muscle (5) that has tenon separately, at this moment has corresponding hole in casing, and the tenon of antidetonation muscle is inserted wherein, fuses with casing face frame (1) or bonnet (2).
Adopt the utility model, can in black and white television set, replace the printed circuit board (PCB) that is covered with glass wool cloth, can reduce wiring board cost 6-7%, and improve the electric property and the dependability of wiring board with the paper printing circuit board; In color TV set, be expected to cancel widely different frame, obviously reduce product cost, improve the installation work efficiency.In addition, such as electric equipment such as recorder, stereo sets, at the position of using the large tracts of land printed circuit board (PCB), at casing above-mentioned antidetonation muscle is set correspondingly, all can significantly improve the anti-seismic performance of electric equipment, improve electric property, also can reduce production costs by replacing the printed circuit board (PCB) that is covered with glass wool cloth with simple paper printing circuit board.
Claims (7)
1, a kind of electric equipment casing that has the antidetonation muscle is made up of face frame (1), bonnet (2) etc., and it is characterized in that: the bottom surface, installation position of the components and parts assembled unit printed circuit board (PCB) (3) in casing is provided with antidetonation muscle (4).
2, by the described electric equipment casing of claim 1, it is characterized in that: described antidetonation muscle (4) is consistent in the depth direction of the face frame (1) of length direction and casing, bonnet (2).
3, by the described electric equipment casing of claim 2, it is characterized in that: the cross section of antidetonation muscle (4) is a triangle, and its bottom surface flushes with the chassis cavity bottom surface, and its height flushes with the installed surface of components and parts assembled unit printed circuit board (PCB) (3).
4, by the described electric equipment casing of claim 3, it is characterized in that: the cross-section basion-prosthion line 2.5-3.5 millimeter of antidetonation muscle (4), high 8-12 millimeter, top arc radius 0.1-0.2 millimeter.
5, by the described electric equipment casing of claim 4, it is characterized in that: antidetonation muscle (4) is made of plastics, and is injection molded into one with face frame (1), the bonnet (2) of casing.
6, by the described electric equipment machine casing of claim 5, it is characterized in that: face frame (1), the bonnet (2) of antidetonation muscle (4) and casing are made by high impact polystyrene.
7, by the described electric equipment casing of claim 4, it is characterized in that: described plastics antidetonation muscle (5) is that the cross section is triangle, has the working of plastics of tenon, and antidetonation muscle (5) inserts in the hole of casing face frame (1), bonnet (2), fuses with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230936 CN2109053U (en) | 1991-11-19 | 1991-11-19 | Electrical equipment shell with anti-seismic bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230936 CN2109053U (en) | 1991-11-19 | 1991-11-19 | Electrical equipment shell with anti-seismic bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2109053U true CN2109053U (en) | 1992-07-01 |
Family
ID=4936211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91230936 Granted CN2109053U (en) | 1991-11-19 | 1991-11-19 | Electrical equipment shell with anti-seismic bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2109053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680008A (en) * | 2011-03-07 | 2012-09-19 | 发那科株式会社 | Encoder having durability against vibration or shock |
-
1991
- 1991-11-19 CN CN 91230936 patent/CN2109053U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680008A (en) * | 2011-03-07 | 2012-09-19 | 发那科株式会社 | Encoder having durability against vibration or shock |
| CN102680008B (en) * | 2011-03-07 | 2014-06-04 | 发那科株式会社 | Encoder having durability against vibration or shock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |