CN201203723Y - Engineering instrument housing - Google Patents
Engineering instrument housing Download PDFInfo
- Publication number
- CN201203723Y CN201203723Y CNU2008201043038U CN200820104303U CN201203723Y CN 201203723 Y CN201203723 Y CN 201203723Y CN U2008201043038 U CNU2008201043038 U CN U2008201043038U CN 200820104303 U CN200820104303 U CN 200820104303U CN 201203723 Y CN201203723 Y CN 201203723Y
- Authority
- CN
- China
- Prior art keywords
- panel cover
- cover
- rear shell
- panel
- back cover
- 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.)
- Expired - Fee Related
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to engineering instrument shells comprising a rear shell and a panel cover where a transparent window is on. The transparent window and the panel cover are integral seamless structures. External periphery of the panel cover contacting the rear shell is respectively provided with a ring of locked convex edges and concave grooves wherein sealing adhesive tapes are deposited. The screw connecting the rear shell and the panel cover is mounted on external side of the concave groove. Inner chamber of the shell is provided with a pressure board that leans against the liquid crystal and is fixedly connected with the panel cover. One surface of the pressure board adjacent to the rear shell is provided with a main circuit board. The utility model is simple in structure, not only with great dust-proofing effect, but also great water-proofing and great electromagnetic interference-proofing performances.
Description
Technical field
The utility model relates to a kind of engineering instrument housing, particularly a kind of housing of digital supervision Displaying Meter.
Background technology
Existing digital supervision Displaying Meter housing great majority are to be made of panel cover and back cover, the transparent panel of visible liquid crystal display screen normally is installed in the opening of panel cover, and seal by the mode that the plane compresses sealing joint strip, the liquid crystal and the main circuit board that are installed in the housing are to pass back cover simultaneously by a plurality of attachment screws, circuit board and panel cover are fixed in the housing, there is following defective in the meter housing of this structure: 1. because transparent panel and panel cover are to be divided into two parts, sealing between them need seal by the mode that the plane compresses sealing joint strip, therefore will influence sealing property in case compress the condition variation, water resistance is poor; 2. because attachment screw is straight-through instrument inner chamber, though can seal by compressing rubber, waterproof effect still is not ideal enough; 3. because liquid crystal is installed is directly to contact with the attachment screw that exposes with circuit board, and attachment screw is again metalwork, so anti-electromagnetic interference performance is poor.
The utility model content
Technical problem to be solved in the utility model provides all excellent engineering instrument housings of a kind of water resistance and anti-electromagnetic interference performance.
The utility model solves the problems of the technologies described above with following technical scheme: engineering instrument housing of the present utility model has back cover and panel cover, transparency window is arranged on the panel cover, transparency window and panel cover are seamless integral structure, the contacted periphery of panel cover and back cover is respectively equipped with chimb and the groove that at least one circle is interlocked, be placed with sealing joint strip in the groove, the screw that connects back cover and panel cover is installed in the outside of groove, the housing inner chamber is equipped with pressing plate, pressing plate roof pressure liquid crystal is also fixedlyed connected with panel cover, and pressing plate is installed main circuit board by the one side of back cover.
The utility model is simple in structure, and it not only has well dustproof effect, but also has good water resistance and anti-electromagnetic interference performance.
Description of drawings
Fig. 1 is the structural representation of the utility model engineering instrument housing.
Fig. 2 is that synoptic diagram is looked on the left side of Fig. 1.
Fig. 3 is that synoptic diagram is looked on the right side that Fig. 1 takes off behind the back cover.
Embodiment
Shown in Fig. 1～3, the utility model engineering instrument housing mainly is made of back cover 1, panel cover 6 and pressing plate 10, transparency window 9 on the panel cover 6 is seamless integral structure with panel cover, promptly panel cover and transparency window are integrated into a part, and make transparent window portion transparent by certain technology, and other parts are opaque; Contacted periphery was respectively equipped with chimb 12 and the groove 13 that a circle is interlocked when panel cover 6 engaged with back cover 1, was placed with sealing joint strip 11 in the groove 13; Four screws 5 that connect back cover 1 and panel cover 6 distribute by four angles and are installed in the outside of groove 13, be equipped with in the housing inner chamber 3 along the inboard pressing plate 10 of placing of groove, pressing plate 10 roof pressure liquid crystal 8 also are fixed on the panel cover 6 by each 2 screw of arranging 7 of upper, middle and lower, liquid crystal 8 is corresponding with the position of transparency window 9, pressing plate 10 by the one side of back cover by four screws 4 by four angles fixedly main circuit board 2 of arranging.
The groove and the chimb that are located at respectively on panel cover 6 and the back cover 1 also can be more than 2 circles or 2 enclose.
There is not sealing problem in instrument housing of the present utility model because panel cover and transparency window design for one between them, therefore can thoroughly solve problem dustproof, waterproof; And, make dust and water be difficult for entering the instrument inner chamber because to connect between the screw of back cover and panel cover and the instrument inner chamber be that double-layer sealing structure by seal groove compresses sealing joint strip is kept apart fully; Also have because the instrument inner chamber adopts a pressing plate that main circuit board and liquid crystal are installed, the connection back cover need not directly be contacted with main circuit board and liquid crystal with the screw of panel cover, therefore anti-electromagnetic interference performance is good.
Claims (1)
1. engineering instrument housing, include back cover and panel cover, transparency window is arranged on the panel cover, it is characterized in that: transparency window and panel cover are seamless integral structure, and the contacted periphery of panel cover and back cover is respectively equipped with chimb and the groove that at least one circle is interlocked, and is placed with sealing joint strip in the groove, the screw that connects back cover and panel cover is installed in the outside of groove, the housing inner chamber is equipped with pressing plate, and pressing plate roof pressure liquid crystal is also fixedlyed connected with panel cover, and pressing plate is installed main circuit board by the one side of back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201043038U CN201203723Y (en) | 2008-06-13 | 2008-06-13 | Engineering instrument housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201043038U CN201203723Y (en) | 2008-06-13 | 2008-06-13 | Engineering instrument housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203723Y true CN201203723Y (en) | 2009-03-04 |
Family
ID=40426035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201043038U Expired - Fee Related CN201203723Y (en) | 2008-06-13 | 2008-06-13 | Engineering instrument housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203723Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313561A (en) * | 2013-06-25 | 2013-09-18 | 广西南宁市精祥仪表有限责任公司 | Engineering machinery instrument casing |
| CN104527866A (en) * | 2014-12-04 | 2015-04-22 | 苏州欣航微电子有限公司 | Waterproof and heat insulation type liquid crystal display panel of motorcycle |
| CN106714478A (en) * | 2016-11-21 | 2017-05-24 | 北京四方继保自动化股份有限公司 | Protection casing |
| CN107444651A (en) * | 2016-05-31 | 2017-12-08 | 深圳市多尼卡电子技术有限公司 | Vehicle entertainment player |
| WO2019020096A1 (en) * | 2017-07-28 | 2019-01-31 | 深圳市帝迈生物技术有限公司 | Dustproof structure for use in optical detection module |
-
2008
- 2008-06-13 CN CNU2008201043038U patent/CN201203723Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313561A (en) * | 2013-06-25 | 2013-09-18 | 广西南宁市精祥仪表有限责任公司 | Engineering machinery instrument casing |
| CN103313561B (en) * | 2013-06-25 | 2015-10-21 | 广西南宁市精祥仪表有限责任公司 | A kind of engineering mechanical instruments housing |
| CN104527866A (en) * | 2014-12-04 | 2015-04-22 | 苏州欣航微电子有限公司 | Waterproof and heat insulation type liquid crystal display panel of motorcycle |
| CN107444651A (en) * | 2016-05-31 | 2017-12-08 | 深圳市多尼卡电子技术有限公司 | Vehicle entertainment player |
| CN106714478A (en) * | 2016-11-21 | 2017-05-24 | 北京四方继保自动化股份有限公司 | Protection casing |
| WO2019020096A1 (en) * | 2017-07-28 | 2019-01-31 | 深圳市帝迈生物技术有限公司 | Dustproof structure for use in optical detection module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20120613 |