CN206709887U - A kind of Temperature Humidity Sensor encapsulating structure - Google Patents
A kind of Temperature Humidity Sensor encapsulating structure Download PDFInfo
- Publication number
- CN206709887U CN206709887U CN201720424769.5U CN201720424769U CN206709887U CN 206709887 U CN206709887 U CN 206709887U CN 201720424769 U CN201720424769 U CN 201720424769U CN 206709887 U CN206709887 U CN 206709887U
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- CN
- China
- Prior art keywords
- pcb board
- encapsulating shell
- eyelet strip
- humidity sensor
- encapsulation port
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- 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
Sensing device technical field is the utility model is related to, refers specifically to a kind of Temperature Humidity Sensor encapsulating structure；Including encapsulating shell and pcb board, pcb board is provided with wet sensitive chip, and the rear end of pcb board is provided with some leads；The encapsulating shell rear end offers encapsulation port, and eyelet strip is provided with encapsulation port, and eyelet strip is provided with to be each passed through corresponding threading hole and drawn out of encapsulation port with some threading holes, some leads, and fluid sealant is filled with the encapsulation port on rear side of eyelet strip；The utility model is rational in infrastructure, by the cut-off encapsulating shell inner chamber of eyelet strip, reduces the fluid sealant dosage in encapsulation port, and pcb board is fixed in encapsulating shell by guide groove, and filter membrane component is integrally fixed by pcb board and encapsulating shell, improves packaging efficiency and protection effect；Making Temperature Humidity Sensor, duplicate measurements deviation is in the range of 3%RH, and detector response time is in 10s under the conditions of 25 DEG C, 65%RH；Be powered operation 240h under the conditions of 85 DEG C, 85%RH, and probe value deviation is in the range of 5%RH；Improved and lifted in protective, sensitivity and reliability.
Description
Technical field
Sensing device technical field is the utility model is related to, refers specifically to a kind of Temperature Humidity Sensor encapsulating structure.
Background technology
The departments such as industrial and agricultural production, meteorology, environmental protection, national defence, scientific research, space flight be frequently necessary to measure ambient humidity and
Control, in the ambient parameter of routine, humidity is to be most difficult to a parameter of accurate measurement.Humidity sensor is to pass through dew cell
To gather a kind of sensing device of moisture in air data, it feeds back to central processing unit by digital analogue signal, so as to adopt
The measures such as a series of dehumidifying, humidification are taken environment is reached perfect condition.
Humidity sensitive chip is usually directly exposed in environment to be measured to obtain more accurate probe value, because
It is dust-proof unfavorable and be chronically at a kind of humidity environment, cause sensor probe value distortion plus factors such as low temperature, steam.It is existing
Wet sensitive chip (21) encapsulation is more using transistor outline package, single row direct insert encapsulation, the small external form Plastic Packages of SOP and other encapsulation
Mode, the configurations and performance of these packaged types differ.A kind of humidity proposed such as Chinese patent 201410351484.4
Sensor, it is protected layer by layer by structures such as internal layer filter paper, interior sealing, external sealant, waterproof grommets, obtains internal layer chip
Dust-proof, waterproof and low temperature resistant protection effect.But so canned program is complicated, yields is low, between each layer safeguard structure
Interference easily causes the detectivity of humidity chip to reduce, measured deviation value is excessive.Existing humidity sensor is in measurement essence
Remained in terms of degree control and environmental resistance in more deficiency, encapsulating structure complexity causes production efficiency and yields relatively low.
Therefore, prior art has yet to be improved and developed.
The content of the invention
The defects of the purpose of this utility model is to be directed to prior art and deficiency, there is provided a kind of envelope rational in infrastructure, convenient
Dress, the Temperature Humidity Sensor encapsulating structure for reducing sealing dosage.
To achieve these goals, the utility model uses following technical scheme：
A kind of Temperature Humidity Sensor encapsulating structure described in the utility model, including encapsulating shell and pcb board, set on pcb board
There is wet sensitive chip, the rear end of pcb board is provided with some leads；The encapsulating shell rear end offers encapsulation port, is provided with and wears in encapsulation port
Line plate, eyelet strip is provided with to be each passed through corresponding threading hole and is drawn out of encapsulation port, worn with some threading holes, some leads
Fluid sealant is filled with encapsulation port on rear side of line plate.
According to above scheme, the stop bit bar of projection, eyelet strip and encapsulating shell are equipped with the both sides inwall of the encapsulating shell
Inner chamber agree with and eyelet strip and the stop bit bar of both sides are contradicted and connected.
According to above scheme, madial wall of the stop bit bar along encapsulating shell is laterally set, and guide groove is offered on stop bit bar,
Two sides of pcb board are arranged in the guide groove of respective side respectively.
According to above scheme, the panel of the encapsulating shell front end is provided with detection window, detection window with wet sensitive chip
Lower correspondence, detection window is interior to be provided with filter membrane component, and filter membrane component is provided with the fastener being connected with pcb board, and fastener is located in
Between pcb board front end and encapsulating shell front end-plate.
The utility model has the beneficial effect that：The utility model is rational in infrastructure, passes through the cut-off encapsulating shell inner chamber of eyelet strip, drop
Fluid sealant dosage in low encapsulation port, pcb board are fixed in encapsulating shell by guide groove, and filter membrane component is by pcb board and encapsulating shell one
Body is fixed, and improves packaging efficiency and protection effect；Make Temperature Humidity Sensor under the conditions of 25 DEG C, 65%RH, duplicate measurements deviation
In the range of 3%RH, detector response time is in 10s；Be powered operation 240h under the conditions of 85 DEG C, 85%RH, and probe value is inclined
Difference is in the range of 5%RH；Further improvement has been obtained on protective, sensitivity and reliability under the conditions of longtime running and has been carried
Rise.
Brief description of the drawings
Fig. 1 is overall configuration schematic diagram of the present utility model.
In figure：
1st, encapsulating shell；2nd, pcb board；3rd, filter membrane component；11st, detection window；12nd, encapsulation port；13rd, stop bit bar；14th, it is oriented to
Groove；15th, probe frame；16th, withdrawing pattern angle；17th, fluid sealant；21st, wet sensitive chip；22nd, lead；23rd, positioning embeded groove；24th, eyelet strip；
25th, threading hole；31st, fastener；32nd, it is adapted to neck；33rd, filter membrane；34th, shaping frame；35th, formed frame.
Embodiment
The technical solution of the utility model is illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of Temperature Humidity Sensor encapsulating structure described in the utility model, including encapsulating shell 1 and pcb board
2, pcb board 2 is provided with wet sensitive chip 21, and the rear end of pcb board 2 is provided with some leads 22；The rear end of encapsulating shell 1 offers encapsulation
Mouthfuls 12, be provided with eyelet strip 24 in encapsulation port 12, eyelet strip 24 with some threading holes 25, some leads 22 provided with being each passed through pair
The threading hole 25 answered and the extraction out of encapsulation port 12, the encapsulation port 12 of the rear side of eyelet strip 24 is interior to be filled with fluid sealant 17；The PCB
Plate 2 loads in encapsulating shell 1 from encapsulation port 12, and eyelet strip 24 positions with lead 22 in the back-end realization of pcb board 2, can improve encapsulation effect
Rate；The encapsulation port 12 of the eyelet strip 24 and rear side forms the slotted hole structure of opening consequently facilitating encapsulation process, eyelet strip 24
Setting can avoid sealing from polluting the circuit on pcb board 2, and the space of encapsulation port 12 is carried out division limit by eyelet strip 24
It is fixed, the dosage of fluid sealant 17 can be reduced with cost-effective.
The stop bit bar 13 of projection, the inner chamber contract of eyelet strip 24 and encapsulating shell 1 are equipped with the both sides inwall of the encapsulating shell 1
Close and eyelet strip 24 and the stop bit bar 13 of both sides are contradicted and connected；The stop bit bar 13 is on the inwall of encapsulating shell 1 to the structure of eyelet strip 24
Into positioning, limited the space of encapsulation port 12 of rear side, improve efficiency of assembling reduces the dosage of fluid sealant 17 simultaneously；It is described
Madial wall of the stop bit bar 13 along encapsulating shell 1 is laterally set, and guide groove 14, the two sides difference of pcb board 2 are offered on stop bit bar 13
It is arranged in the guide groove 14 of respective side；The stop bit bar 13 is realized to pcb board 2 by guide groove 14 and fixed simultaneously, pcb board 2
Realize that the positioning on lateral and vertical is fixed by the two side of guide groove 14 and encapsulating shell 1, pcb board 2 fills along guide groove 14
Enter and its front end is contradicted the front end-plate of encapsulating shell 1, its rear end is then made up of eyelet strip 24 and fluid sealant 17 and fixed, so as to effectively
Improve encapsulation precision and protection effect.
The panel of the front end of encapsulating shell 1 is provided with detection window 11, and detection window 11 and wet sensitive chip are corresponding about 21,
Filter membrane component 3 is provided with detection window 11, filter membrane component 3 is provided with the fastener 31 being connected with pcb board 2, the sandwiched of fastener 31
Between the front end of pcb board 2 and the front end-plate of encapsulating shell 1；The preferable filter membrane component 3 of the utility model includes shaping frame 34, formed frame
35 and filter membrane 33, fastener 31 is located at the front end of shaping frame 34, and shaping frame 34, formed frame 35 are nested successively with detection window 11 and mutually
Between in interference fit, the rim of filter membrane 33 is located between formed frame 36 and shaping frame 34, and shaping frame 34 is located on wet sensitive chip
21 surroundings and it is connected with pcb board 2；The utility model is under the conditions of 25 DEG C, 65%RH, and duplicate measurements deviation is in 3%RH models
In enclosing, detector response time is in 10s；Be powered operation 240h under the conditions of 85 DEG C, 85%RH, and probe value deviation is in 5%RH
In the range of；Further improvement and lifting have been obtained in the protective under the conditions of longtime running, sensitivity and reliability.
The front end edge of preferable pcb board 2 is provided with positioning embeded groove 23, and the front end of shaping frame 34 is provided with fastener 31, fastener 31
Upper transverse direction offers adaptation neck 32；The occlusion structure that the positioning embeded groove 23 forms cross and interlocked with being adapted to neck 32, fastener
31 are assemblied on the positioning embeded groove 23 of the front end of pcb board 2 and fastener 31 and the front end-plate of encapsulating shell 1 are contradicted and positioned；The fastener 31
U-shaped cross section structure is formed after opening up adaptation neck 32, fastener 31 coordinates with positioning embeded groove 23 makes shaping frame 34 be fixed on pcb board 2
On, pcb board 2 enables shaping frame 34 accurately around wet sensitive chip 21 and corresponding detection with the front end-plate clamping fastener 31 of encapsulating shell 1
Window 11.
The detection window 11 is provided with the probe frame 15 with the one of encapsulating shell 1, and formed frame 35 is nested in probe frame 15
In lower port, withdrawing pattern angle 16 is provided with the probe upper port of frame 15, the withdrawing pattern angle 16 is inner bevel or mouth structure of slotting,
Consequently facilitating the loading of formed frame 35 improves efficiency of assembling, while form the steam outflow of detection window 11 under normality.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (4)
1. a kind of Temperature Humidity Sensor encapsulating structure, including encapsulating shell (1) and pcb board (2), pcb board (2) are provided with wet sensitive chip
(21), the rear end of pcb board (2) is provided with some leads (22)；It is characterized in that：Encapsulating shell (1) rear end offers encapsulation port
(12) eyelet strip (24), is provided with encapsulation port (12), eyelet strip (24) is provided with and some threading holes (25), some leads (22)
It is each passed through corresponding threading hole (25) and is drawn out of encapsulation port (12), is filled in the encapsulation port (12) on rear side of eyelet strip (24)
There is fluid sealant (17).
2. Temperature Humidity Sensor encapsulating structure according to claim 1, it is characterised in that：The both sides of the encapsulating shell (1)
The stop bit bar (13) of projection is equipped with inwall, the inner chamber of eyelet strip (24) and encapsulating shell (1) is agreed with and eyelet strip (24) and two
The stop bit bar (13) of side contradicts connection.
3. Temperature Humidity Sensor encapsulating structure according to claim 2, it is characterised in that：Stop bit bar (13) edge encapsulation
The madial wall of shell (1) is laterally set, and offers guide groove (14) on stop bit bar (13), two sides of pcb board (2) are arranged in respectively
In the guide groove (14) of respective side.
4. Temperature Humidity Sensor encapsulating structure according to claim 1, it is characterised in that：Encapsulating shell (1) front end
Panel is provided with detection window (11), and detection window (11) and wet sensitive chip (21) are corresponding up and down, is provided with detection window (11)
Filter membrane component (3), filter membrane component (3) are provided with the fastener (31) being connected with pcb board (2), and fastener (31) is located in pcb board
(2) between front end and encapsulating shell (1) front end-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424769.5U CN206709887U (en) | 2017-04-21 | 2017-04-21 | A kind of Temperature Humidity Sensor encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424769.5U CN206709887U (en) | 2017-04-21 | 2017-04-21 | A kind of Temperature Humidity Sensor encapsulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206709887U true CN206709887U (en) | 2017-12-05 |
Family
ID=60454624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720424769.5U Expired - Fee Related CN206709887U (en) | 2017-04-21 | 2017-04-21 | A kind of Temperature Humidity Sensor encapsulating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206709887U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018192062A1 (en) * | 2017-04-21 | 2018-10-25 | 佛山市川东磁电股份有限公司 | Temperature-humidity sensor |
| CN109489850A (en) * | 2018-12-29 | 2019-03-19 | 深圳洲斯移动物联网技术有限公司 | Humiture observation system and humiture monitoring device |
| CN112229445A (en) * | 2020-10-09 | 2021-01-15 | 三桥惠(佛山)新材料有限公司 | Temperature and humidity sensor convenient to disassemble PCB |
-
2017
- 2017-04-21 CN CN201720424769.5U patent/CN206709887U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018192062A1 (en) * | 2017-04-21 | 2018-10-25 | 佛山市川东磁电股份有限公司 | Temperature-humidity sensor |
| CN109489850A (en) * | 2018-12-29 | 2019-03-19 | 深圳洲斯移动物联网技术有限公司 | Humiture observation system and humiture monitoring device |
| CN112229445A (en) * | 2020-10-09 | 2021-01-15 | 三桥惠(佛山)新材料有限公司 | Temperature and humidity sensor convenient to disassemble PCB |
| CN112229445B (en) * | 2020-10-09 | 2022-08-16 | 三桥惠(佛山)新材料有限公司 | Temperature and humidity sensor convenient to disassemble PCB |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200617 Address after: 528513 Guangdong province Foshan Gaoming Cangjiang Industrial Park Road and Yang Town No. 372 Co-patentee after: Daren Intelligent Technology (Foshan) Co.,Ltd. Patentee after: CHUANDONG MAGNETIC ELECTRONICS Co.,Ltd. Address before: 528513 Guangdong province Foshan Gaoming Cangjiang Industrial Park Road and Yang Town No. 372 Patentee before: CHUANDONG MAGNETIC ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |