CN203629740U - Pressure transmitter - Google Patents
Pressure transmitter Download PDFInfo
- Publication number
- CN203629740U CN203629740U CN201320670277.6U CN201320670277U CN203629740U CN 203629740 U CN203629740 U CN 203629740U CN 201320670277 U CN201320670277 U CN 201320670277U CN 203629740 U CN203629740 U CN 203629740U
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- China
- Prior art keywords
- signal
- output terminal
- electrically connected
- plug
- integrated circuit
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- Expired - Lifetime
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- 239000002184 metal Substances 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 238000005452 bending Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a pressure transmitter and belongs to the pressure sensor field. By using the pressure transmitter, a problem that anti-interference performance is poor is solved. A technical scheme used for solving the above problem is characterized in that a metal main body with an inner cavity is included; a ceramic core body and a signal processing assembly are arranged in the inner cavity of the metal main body; the ceramic core body is connected with the signal processing assembly in a signal connection mode; one end of the metal main body is provided with a plug used for sealing the ceramic core body and the signal processing assembly in the inner cavity; a pin is arranged in the plug; the signal processing assembly possesses a detection signal output terminal and an interference signal output terminal; the signal processing assembly is electrically connected with the detection signal output terminal through the pin so as to output a needed signal; a metal connecting piece which is electrically connected with the metal main body is arranged in the inner cavity located between the plug and the signal processing assembly; the metal connecting piece is electrically connected with the interference signal output terminal. The pressure transmitter of the utility model is mainly used for an industrial automatic control environment, is used to measure a liquid level, a density and pressure of liquid, a gas or steam and then convert a pressure signal into a DC signal so as to output.
Description
Technical field
The utility model relates to a kind of pressure unit.
Background technology
Pressure unit is a kind of transmitter the most frequently used in industrial practice, it is widely used in industrial automatic control environment, be applicable to the measurement of medium, it is the output that according to certain rules pressure signal is converted into electrical signal form, to meet the requirements such as transmission, processing, storage, demonstration, record and the control of information, it is the crucial precise detection device of control system.But needing remote transmission signal or environment for use electrical network to disturb larger occasion, pressure unit is subject to the impact of the extraneous factors such as static, magnetic field, thunderbolt larger, easily exposes the poor problem of this product anti-interference.
Summary of the invention
The object that the utility model will reach is just to provide a kind of pressure unit that improves interference free performance.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of pressure unit, comprise the metal master with inner chamber, in the inner chamber of described metal master, be provided with ceramic core body and signal processing component, pottery core body is connected with signal processing component signal, one end of described metal master is provided with ceramic core body and signal processing component is closed in to the plug in inner chamber, in described plug, be provided with contact pin, described signal processing component has detection signal output terminal and undesired signal output terminal, described signal processing component is electrically connected and is fetched output desired signal by contact pin and detection signal output terminal, in inner chamber between plug and signal processing component, be provided with the metal connecting piece being electrically connected with metal master, described metal connecting piece is also electrically connected with undesired signal output terminal.
Further improve, described metal connecting piece comprises becket and bonding jumper, and described becket is electrically connected with metal master, and one end of described bonding jumper is connected with becket, the other end is electrically connected with the undesired signal output terminal of signal processing component.
Further improve, the internal chamber wall of described metal master is provided with positioning step, and described plug is positioned positioning step, and described becket is fixed between plug and positioning step.
Further improve, the oral area that described metal master is positioned at inner chamber is provided with for plug riveting being positioned to the riveted joint flange on positioning step.
Further improve, described plug outside is provided with conductive layer, and conductive layer and becket and metal master conduct; Or, described plug be electric conductor and with contact pin insulation, plug and becket and metal master conduct.
Further improve, described signal processing component comprises for amplifying, compensation, the first surface-mounted integrated circuit of corrected signal and for the second surface-mounted integrated circuit of signal anti-interference process, described the first surface-mounted integrated circuit has detection signal first input end and detection signal the first output terminal, described detection signal first input end is electrically connected with ceramic core body, described the second surface-mounted integrated circuit has detection signal the second input end and is electrically connected with detection signal the first output terminal, the second surface-mounted integrated circuit has detection signal the second output terminal and described undesired signal output terminal, detection signal the second output terminal is electrically connected with the contact pin of plug, undesired signal output terminal is electrically connected with bonding jumper.
Further improve, described bonding jumper has bending with one end that the second surface-mounted integrated circuit is connected, and described plug is pressed against and in bending, bending is positioned on the second surface-mounted integrated circuit to be welded and fixed.
Further improve, the undesired signal output terminal of described the second surface-mounted integrated circuit is provided with through hole, and described bonding jumper inserts in through hole and is welded and fixed.
Further improve, described signal processing component is also electrically connected with ceramic core body, described the first surface-mounted integrated circuit has power supply signal the second input end and power supply signal the second output terminal, described the second surface-mounted integrated circuit has power supply signal first input end and power supply signal the first output terminal, described contact pin is provided with at least two, wherein at least one contact pin is electrically connected with detection signal the second output terminal, at least one contact pin is electrically connected with power supply signal first input end by wire, between the contact pin of electrical connection detection signal the second output terminal and the contact pin of electric connection of power supply signal first input end, insulate, described power supply signal the first output terminal is electrically connected with power supply signal the second input end, described power supply signal the second output terminal is electrically connected with ceramic core body.
Further improve, the inner ring of described becket is provided with at least one and extends bar, and described extension bar extends to the center of becket, and the part that described plug stretches in inner chamber contacts with extension bar.
Adopt after technique scheme, the utlity model has following advantage: the electric signal that signal processing component can produce ceramic core body carries out anti-interference process, can realize by circuit design the ability of electromagnetic interference (EMI) such as possessing opposing static discharge, surge, then by metal connecting piece, undesired signal is transferred on metal master, again by metal master by undesired signal ground connection, impact on product under the extraneous factors such as static, magnetic field and thunderbolt is protected, thereby has improved the antijamming capability of product.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the cut-open view of metal connecting piece;
Fig. 3 is the vertical view (unused state) of metal connecting piece.
Embodiment
Be illustrated in figure 1 a kind of embodiment of the utility model, a kind of pressure unit, comprises the metal master 1 with inner chamber 11, is provided with ceramic core body 2 and signal processing component in the inner chamber of metal master.The position of the corresponding signalization processing components of internal chamber wall of metal master is provided with insulation sleeve 7, signal processing component is located in insulation sleeve, utilize insulation sleeve that signal processing component and metal master are isolated, increase electric creepage distance with this, improve the electrical strength of product.Signal processing component comprises for amplifying, the first surface-mounted integrated circuit 5 of compensation, corrected signal and the second surface-mounted integrated circuit 6 for signal anti-interference process.The first surface-mounted integrated circuit has detection signal first input end and detection signal the first output terminal, and the second surface-mounted integrated circuit has detection signal the second input end, detection signal the second output terminal and undesired signal output terminal.
One end of metal master is provided with ceramic core body and signal processing component is closed in to the plug 3 in inner chamber, in plug, be provided with contact pin 31, in the present embodiment, contact pin can arrange two to three, wherein must have one at least for output detection signal, also should have in addition one at least for input power signal, for the contact pin of output detection signal with for insulating between the contact pin of input power signal.In inner chamber between plug and signal processing component, be provided with the metal connecting piece 4 being electrically connected with metal master, can be in conjunction with Fig. 1 and Fig. 2, metal connecting piece comprises becket 41 and bonding jumper 42, becket is electrically connected with metal master, one end of bonding jumper is connected with becket, the other end is electrically connected with undesired signal output terminal, preferred structure is that one end that bonding jumper is connected with the second surface-mounted integrated circuit has bending 421, plug is pressed against in bending bending is positioned on the second surface-mounted integrated circuit, then be provided with through hole 61 at undesired signal output terminal, bonding jumper inserts in through hole and is welded and fixed, guarantee stability that metal connecting piece is fixing and by good the electrical connection of undesired signal ground connection so simultaneously.
For concrete fixing metal web member, the present embodiment adopts following structure.Be provided with positioning step 12 at the internal chamber wall of metal master, plug is positioned positioning step, and becket is located between plug and positioning step.Then the oral area that is positioned at inner chamber at metal master is provided with for plug riveting being positioned to the riveted joint flange 13 on positioning step.Riveted joint flange riveting is to plug, and plug is pressed on becket on positioning step again, simple in structure, be convenient to implement, and good fixing effect, also can guarantee the electrical connection that metal master and plug are good simultaneously.
As shown in Figure 3, becket and bonding jumper preferably one stamping-out out, produce like this metal connecting piece very convenient, and between becket and bonding jumper, do not need to be additionally fixedly connected with.The inner ring of becket is provided with three and extends bar 43, extending bar extends to the center of becket, the part that described plug stretches in inner chamber contacts with extension bar, like this can be to becket until the effect of a centering in the installation process of plug, guarantee becket aligning positioning step, plug can accurately be pressed on positioning step by becket, realizes reliable and stable electrical connection, extends in addition bar and also can realize and conducting with the outer side contacts of plug.Three are extended the circumferential uniform of the relative becket of bar is good, extends bar if only arrange one, and it is good being arranged on the position relative with bonding jumper.
Whole pressure unit comprises three bars transmission lines, the incoming line that is power supply signal, and the outlet line that is detection signal, also has the outlet line that is undesired signal.The incoming line of power supply signal specifically connects external power source by contact pin, then be electrically connected with the power supply signal first input end of the second surface-mounted integrated circuit by contact pin, power supply signal first output terminal of the second surface-mounted integrated circuit is electrically connected with power supply signal second input end of the first surface-mounted integrated circuit, power supply signal second output terminal of the first surface-mounted integrated circuit is electrically connected with ceramic core body, thereby makes the second surface-mounted integrated circuit, the first surface-mounted integrated circuit and ceramic core body obtain the required power supply of work.The outlet line of detection signal is after ceramic core body is charged, the pressure variation meeting being subject to is converted into pressure signal detection signal (electric signal) and this signal is transmitted, pottery core body is electrically connected with the detection signal first input end of the first surface-mounted integrated circuit, detection signal the first output terminal is electrically connected with detection signal the second input end, detection signal the second output terminal is electrically connected with the contact pin for output detection signal, detection signal is through the amplification of the first surface-mounted integrated circuit, compensation, after revising, be transferred to the second surface-mounted integrated circuit by detection signal the first output terminal and detection signal the second input end, the second surface-mounted integrated circuit carries out anti-interference process to detection signal, then by detection signal the second output terminal with for the contact pin of output detection signal, detection signal is exported.The outlet line of undesired signal is that the undesired signal of detection signal being carried out to separate after anti-interference process at the second surface-mounted integrated circuit is to be transferred to metal master by undesired signal output terminal and metal connecting piece, the general ground connection of metal master.
In order to allow undesired signal ground connection better, the electrical connection of reinforced metal web member and metal master, in the present embodiment, plug is made as to electric conductor, plug and becket and metal master conduct, endoporus is set in plug, contact pin is fixed on plastic processing frame, and plastic processing frame is fixed on the insulation that realizes plug and contact pin in endoporus, and it is also feasible adopting insulating gel substituted for plastic frame.If plug entirety is not made to conduction, also can establish conductive layer in plug outside, conductive layer and becket and metal master conduct.
If the second surface-mounted integrated circuit, the first surface-mounted integrated circuit and ceramic core body are not by contact pin input power signal in the utility model, but realize by alternate manner, a contact pin is set for output detection signal, in addition contact pin also can adopt the structure of similar headset plug, see in appearance it is a contact pin, in fact comprise inside and outside two metal layers, centre separates with insulation course.Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to defined scope in the utility model claims.
Claims (10)
1. a pressure unit, comprise the metal master (1) of band inner chamber (11), in the inner chamber of described metal master, be provided with ceramic core body (2) and signal processing component, pottery core body is connected with signal processing component signal, one end of described metal master is provided with ceramic core body and signal processing component is closed in to the plug (3) in inner chamber, in described plug, be provided with contact pin (31), it is characterized in that: described signal processing component has detection signal output terminal and undesired signal output terminal, described signal processing component is electrically connected and is fetched output desired signal by contact pin and detection signal output terminal, in inner chamber between plug and signal processing component, be provided with the metal connecting piece (4) being electrically connected with metal master, described metal connecting piece is also electrically connected with undesired signal output terminal.
2. pressure unit according to claim 1, it is characterized in that: described metal connecting piece comprises becket (41) and bonding jumper (42), described becket is electrically connected with metal master, and one end of described bonding jumper is connected with becket, the other end is electrically connected with the undesired signal output terminal of signal processing component.
3. pressure unit according to claim 2, is characterized in that: the internal chamber wall of described metal master is provided with positioning step (12), and described plug is positioned positioning step, and described becket is fixed between plug and positioning step.
4. pressure unit according to claim 3, is characterized in that: the oral area that described metal master is positioned at inner chamber is provided with for plug riveting being positioned to the riveted joint flange (13) on positioning step.
5. according to the pressure unit described in claim 1 or 2 or 3 or 4, it is characterized in that: described plug outside is provided with conductive layer, and conductive layer and becket and metal master conduct; Or, described plug be electric conductor and with contact pin insulation, plug and becket and metal master conduct.
6. according to the pressure unit described in claim 2 or 3 or 4, it is characterized in that: described signal processing component comprises for amplifying, compensation, first surface-mounted integrated circuit (5) of corrected signal and for second surface-mounted integrated circuit (6) of signal anti-interference process, described the first surface-mounted integrated circuit has detection signal first input end and detection signal the first output terminal, described detection signal first input end is electrically connected with ceramic core body, described the second surface-mounted integrated circuit has detection signal the second input end and is electrically connected with detection signal the first output terminal, the second surface-mounted integrated circuit has detection signal the second output terminal and described undesired signal output terminal, detection signal the second output terminal is electrically connected with the contact pin of plug, undesired signal output terminal is electrically connected with bonding jumper.
7. pressure unit according to claim 6, is characterized in that: one end that described bonding jumper is connected with the second surface-mounted integrated circuit has bending (421), and described plug is pressed against and in bending, bending is positioned on the second surface-mounted integrated circuit to be welded and fixed.
8. pressure unit according to claim 6, is characterized in that: the undesired signal output terminal of described the second surface-mounted integrated circuit is provided with through hole (61), and described bonding jumper inserts in through hole and is welded and fixed.
9. pressure unit according to claim 6, it is characterized in that: described signal processing component is also electrically connected with ceramic core body, described the first surface-mounted integrated circuit has power supply signal the second input end and power supply signal the second output terminal, described the second surface-mounted integrated circuit has power supply signal first input end and power supply signal the first output terminal, described contact pin is provided with at least two, wherein at least one contact pin is electrically connected with detection signal the second output terminal, at least one contact pin is electrically connected with power supply signal first input end by wire, between the contact pin of electrical connection detection signal the second output terminal and the contact pin of electric connection of power supply signal first input end, insulate, described power supply signal the first output terminal is electrically connected with power supply signal the second input end, described power supply signal the second output terminal is electrically connected with ceramic core body.
10. pressure unit according to claim 6, is characterized in that: the inner ring of described becket is provided with at least one and extends bar (43), and described extension bar extends to the center of becket, and the part that described plug stretches in inner chamber contacts with extension bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670277.6U CN203629740U (en) | 2013-10-28 | 2013-10-28 | Pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670277.6U CN203629740U (en) | 2013-10-28 | 2013-10-28 | Pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629740U true CN203629740U (en) | 2014-06-04 |
Family
ID=50816206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320670277.6U Expired - Lifetime CN203629740U (en) | 2013-10-28 | 2013-10-28 | Pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629740U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406733A (en) * | 2014-11-20 | 2015-03-11 | 武汉中航传感技术有限责任公司 | Pressure transducer structure without lead |
| CN105784260A (en) * | 2016-05-06 | 2016-07-20 | 武汉航空仪表有限责任公司 | Novel pressure sensor |
| CN105823708A (en) * | 2015-01-08 | 2016-08-03 | 上海朝辉压力仪器有限公司 | Density transducer |
| CN111712696A (en) * | 2018-02-15 | 2020-09-25 | 马克桑马基纳奥托莫提夫萨纳伊蒂卡雷特阿诺尼姆西尔凯蒂公司 | Pressure sensing device |
| CN113670480A (en) * | 2021-08-27 | 2021-11-19 | 麦克传感器股份有限公司 | Pressure transmitter and assembling method thereof |
-
2013
- 2013-10-28 CN CN201320670277.6U patent/CN203629740U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406733A (en) * | 2014-11-20 | 2015-03-11 | 武汉中航传感技术有限责任公司 | Pressure transducer structure without lead |
| CN104406733B (en) * | 2014-11-20 | 2017-03-29 | 武汉中航传感技术有限责任公司 | One kind is without lead pressure sensor structure |
| CN105823708A (en) * | 2015-01-08 | 2016-08-03 | 上海朝辉压力仪器有限公司 | Density transducer |
| CN105784260A (en) * | 2016-05-06 | 2016-07-20 | 武汉航空仪表有限责任公司 | Novel pressure sensor |
| CN105784260B (en) * | 2016-05-06 | 2018-10-19 | 武汉航空仪表有限责任公司 | A kind of novel pressure sensor |
| CN111712696A (en) * | 2018-02-15 | 2020-09-25 | 马克桑马基纳奥托莫提夫萨纳伊蒂卡雷特阿诺尼姆西尔凯蒂公司 | Pressure sensing device |
| CN113670480A (en) * | 2021-08-27 | 2021-11-19 | 麦克传感器股份有限公司 | Pressure transmitter and assembling method thereof |
| CN113670480B (en) * | 2021-08-27 | 2024-01-16 | 麦克传感器股份有限公司 | Pressure transmitter and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |