CN202350972U - High-range hydraulic sensor - Google Patents
High-range hydraulic sensor Download PDFInfo
- Publication number
- CN202350972U CN202350972U CN2011204218445U CN201120421844U CN202350972U CN 202350972 U CN202350972 U CN 202350972U CN 2011204218445 U CN2011204218445 U CN 2011204218445U CN 201120421844 U CN201120421844 U CN 201120421844U CN 202350972 U CN202350972 U CN 202350972U
- Authority
- CN
- China
- Prior art keywords
- ceramic core
- hydraulic pressure
- pedestal
- pressure transducer
- range hydraulic
- 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
Links
Images
Abstract
The utility model discloses a high-range hydraulic sensor, which comprises a base (1), an O-shaped loop (2), a ceramic core, a plastic piece (9) and a back end processing component placed in the base (1), a retaining loop (3) further arranged on the base (1), and a locking ring (7) arranged between the plastic piece (9) and the ceramic core (4). By utilizing the technical scheme, the high-range hydraulic sensor has the advantages that the structure is simple, the cost is reduced, the O-shaped loop is matched with the retaining loop simultaneously, so that part telescopic amount can be eliminated through the retaining loop under the expansion with heat and contraction with cold surrounding, and the sealing performance of products is improved while the service life of the O-shaped loop is prolonged; as the locking ring is arranged between the plastic piece and the ceramic core and connected with an external thread on the locking ring through an internal thread on the base, the ceramic core is locked tightly, and the effect of pressure bearing and sealing is achieved.
Description
Technical field
The utility model belongs to the hydraulic pressure transducer field, and more specifically, the utility model relates to a kind of high range hydraulic pressure transducer.
Background technology
The principle of work of hydraulic pressure transducer is that gaging pressure acts directly on ceramic core body diaphragm; Make diaphragm produce small deformation; Thick-film resistor is printed on the ceramic diaphragm, connects into a Wheatstone bridge (closing bridge), because the piezoresistive effect of voltage dependent resistor (VDR); The micrometric displacement that makes electric bridge produce a highly linear that is directly proportional with pressure, the diaphragm generation is directly proportional with voltage signal that driving voltage also is directly proportional with pressure medium; The resistance of sensor is changed, use electronic circuit to detect this variation, and standard signal corresponding to this pressure of conversion output.The sensitivity of standard signal is 2.0/3.0/3.3mV/V etc.The rear end analog signal is to the signal that ceramic core body produces, and amplifies and modulate, generates an output signal that meets the requirements of the customers, and under high and low temperature environment, compensates, the deviation that the minimizing temperature variation causes.
At present; Domestic pressure sensor enterprise uses ceramic core body; General working pressure usable range is difficult to accomplish bigger range in 5MPa, the sensor of the above range of 10MPa generally uses schemes such as diffuse si, sputter mould; But the sensor cost of this structure is higher, and high temperature performance is poor.
The utility model content
The utility model problem to be solved is, to the deficiency of prior art, provide a kind of simple in structure, cost is lower and can bear the more high range hydraulic pressure transducer of high workload pressure.
To achieve these goals, the technical scheme taked of the utility model is:
This high range hydraulic pressure transducer that the utility model provided; Comprise pedestal, be placed on O type circle and ceramic core body, working of plastics and back-end processing components and parts in the pedestal; On described pedestal, also be provided with back-up ring, between described working of plastics and ceramic core body, be provided with binding ring.
Described back-end processing components and parts comprise that resistance and the condenser welding on simulation process chip and the peripheral circuit is connected on the flexible PCB in succession.
Described binding ring is threaded with the external thread that is arranged on the binding ring through the internal thread that is arranged on the pedestal.
Described flexible PCB is welded to connect ceramic core body contact pin and working of plastics contact pin.
The model of said process chip is ZMD31010.
Described pedestal and binding ring are processed by stainless steel material.
Adopt technique scheme, this high range hydraulic pressure transducer that the utility model provided, simple in structure; Use the scheme of diffuse si and sputter mould relatively, reduced cost, the scheme of using O type circle and back-up ring to cooperate simultaneously; Under the environment of the bloated shrinkage of high low-temperature heat, can eliminate the part stroke, reduce the excessive extruding of O type circle, prolong the serviceable life of O type circle through back-up ring; Also improved simultaneously the sealing property of product, between working of plastics and ceramic core body, be provided with binding ring, binding ring is connected with external thread on the binding ring through the internal thread on the pedestal; Lock ceramic core body, reached the effect of pressure bearing and seal.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this instructions and the figure is made brief description:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of binding ring among Fig. 1.
Be labeled as among the figure:
1, pedestal, 2, O type circle, 3, back-up ring, 4, ceramic core body, 5, internal thread, 6, ceramic core body contact pin, 7, binding ring, 8, flexible PCB, 9, working of plastics, 10, the working of plastics contact pin, 11, external thread.
Embodiment
Extremely shown in Figure 2 like Fig. 1; This high range hydraulic pressure transducer that the utility model provided; Comprise pedestal 1, be placed on O type circle 2 and ceramic core body 4, working of plastics 9 and back-end processing components and parts in the pedestal 1; It is characterized in that: on pedestal 1, also be provided with back-up ring 3, between working of plastics 9 and ceramic core body 4, be provided with binding ring 7.
Adopt technique scheme, this high range hydraulic pressure transducer is under high/low temperature condition; Adopt the mode of O type circle 2 and back-up ring 3 fitted seal; O type circle 2 deformation quantities receive the control of back-up ring 3, between working of plastics 9 and ceramic core body 4, are provided with binding ring 7, and binding ring 7 is threaded through the external thread 11 that 5 of internal threads that are arranged on the pedestal 1 are arranged on the binding ring 7; Reach the effect of pressure bearing and seal; Through test, can be implemented in that the momentary pulse screw thread does not have damage in the 150MPa, long-term pressure-bearing does not have damage under high low temperature-40 ℃ in the 50MPa scope～130 ℃ environment.
To shown in Figure 2, the back-end processing components and parts comprise that resistance and the condenser welding on simulation process chip and the peripheral circuit is connected on the flexible PCB 8 in succession like Fig. 1.
Flexible PCB 8 is welded to connect ceramic core body contact pin 6 with working of plastics contact pin 10.
The model of process chip is ZMD31010.
Adopt technique scheme, analog signal processing circuit is applicable to most of automobile-used typical Wheatstone bridge sensors.Analog signal is a single-chip silicon materials analog sensor interface, can be used for converting the little change in voltage that Wheatstone bridge produced on the ceramic core body into big output voltage.In order to adapt to the variation of various ceramic core body sensitivity, signal processing circuit comprises that enlargement factor adjustment, side-play amount control and two rank temperature compensations, offset are stored among the EEPROM, and can realize programming repeatedly through interface circuit and software.And can realize overvoltage protection; Fault detect and output clamper function; Output and supply voltage proportional 0 to 5; The single pin digital programmable; Full analog signal channel; And satisfy RoHS standard etc.
To shown in Figure 2, pedestal 1 and binding ring 7 are processed by stainless steel material like Fig. 1.
Adopt technique scheme, the pedestal 1 that adopts stainless steel material to process is not fragile, durable in use with binding ring 7.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of the utility model and the improvement of the various unsubstantialities that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all within the protection domain of the utility model.
Claims (6)
1. high range hydraulic pressure transducer; Comprise pedestal (1), be placed on O type circle (2) and ceramic core body (4), working of plastics (9) and back-end processing components and parts in the pedestal (1); It is characterized in that: on described pedestal (1), also be provided with back-up ring (3), between described working of plastics (9) and ceramic core body (4), be provided with binding ring (7).
2. according to the described hydraulic pressure transducer of claim 1, it is characterized in that: described back-end processing components and parts comprise that resistance and the condenser welding on simulation process chip and the peripheral circuit is connected on the flexible PCB (8) in succession.
3. according to the described high range hydraulic pressure transducer of claim 1, it is characterized in that: described binding ring (7) is threaded through the external thread (11) that is arranged on the internal thread (5) on the pedestal (1) and be arranged on the binding ring (7).
4. according to the described high range hydraulic pressure transducer of claim 2, it is characterized in that: described flexible PCB (8) is welded to connect ceramic core body contact pin (6) and working of plastics contact pin (10).
5. according to the described high range hydraulic pressure transducer of claim 2, it is characterized in that: the model of said process chip is ZMD31010.
6. according to the described high range hydraulic pressure transducer of claim 1, it is characterized in that: described pedestal (1) and binding ring (7) are processed by stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204218445U CN202350972U (en) | 2011-10-28 | 2011-10-28 | High-range hydraulic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204218445U CN202350972U (en) | 2011-10-28 | 2011-10-28 | High-range hydraulic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350972U true CN202350972U (en) | 2012-07-25 |
Family
ID=46539969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204218445U Expired - Fee Related CN202350972U (en) | 2011-10-28 | 2011-10-28 | High-range hydraulic sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697699A (en) * | 2013-12-06 | 2015-06-10 | 长野计器株式会社 | Physical quantity measuring sensor and sensor module |
| CN109682529A (en) * | 2019-01-17 | 2019-04-26 | 上海朝辉压力仪器有限公司 | A kind of piece of formula differential pressure force snesor |
-
2011
- 2011-10-28 CN CN2011204218445U patent/CN202350972U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697699A (en) * | 2013-12-06 | 2015-06-10 | 长野计器株式会社 | Physical quantity measuring sensor and sensor module |
| US10113926B2 (en) | 2013-12-06 | 2018-10-30 | Nagano Keiki Co., Ltd. | Ceramic sensor module including diaphragm and cylindrical portion integrated with the diaphragm |
| CN109682529A (en) * | 2019-01-17 | 2019-04-26 | 上海朝辉压力仪器有限公司 | A kind of piece of formula differential pressure force snesor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102435380A (en) | High-range hydraulic sensor and manufacturing method thereof | |
| CN202305093U (en) | Hydraulic sensor | |
| CN202350972U (en) | High-range hydraulic sensor | |
| CN204115658U (en) | Servo-hydraulic pressure loading device is used in resistance strain plate solidification | |
| CN101163951A (en) | Pressure sensor device | |
| CN202149825U (en) | Bridge circuit balancer for thick film ceramic piezoresistive type pressure sensor | |
| CN103674393B (en) | A kind of membrane pressure gage | |
| CN201935774U (en) | Novel pressure and temperature sensor packaging body | |
| CN205563343U (en) | Analog quantity voltage current output circuit of low -cost high accuracy | |
| CN201476965U (en) | Steady-flow trail air valve lift adjusting mechanism of engine cylinder cover air channel | |
| CN101862905B (en) | Laser trimming method of zeropoint resistor of pressure chip of ceramic pressure sensor | |
| CN102095547A (en) | Digital manometer for accurately measuring pressure to be measured | |
| CN201122249Y (en) | Thermal couple or piezoresistance type two-wire system temperature or pressure switch | |
| CN201503293U (en) | Resistance strain sensor for target flowmeter and pontoon liquid level meter | |
| CN204043839U (en) | Compressor pressure unit | |
| CN201045624Y (en) | Resistor detection circuit for automobile instrument | |
| CN2788145Y (en) | Transducer with static adjusting construction and radiating equipment | |
| CN207649819U (en) | A kind of tubular type pressure sensor | |
| CN207984033U (en) | Pressure sensor internally-arranged type servo press | |
| CN209416541U (en) | A kind of high temperature pressure transmitter | |
| CN201297934Y (en) | Intelligent transducer based on SPI protocol | |
| CN101515701B (en) | Wavelength filtering device of semiconductor laser | |
| CN201765077U (en) | Compensation circuit board type pressure transmitter | |
| CN201035037Y (en) | High precision tachometric survey device | |
| CN202256478U (en) | Practical digital ampere meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU ZHITONG AUTOMOBILE ELECTRONICS CO., LTD. Free format text: FORMER OWNER: WUHU TONGHE AUTO PIPELINE SYSTEM CO., LTD. Effective date: 20150616 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150616 Address after: 8 A building, block 35, car electronics Pioneer Park, Hengshan Road, Wuhu economic and Technological Development Zone, Anhui 241009, China Patentee after: Wuhu causes the Electronics Co., Ltd. that is open to the traffic Address before: 241009 Hengshan Road economic and Technological Development Zone, Anhui, No. 26, Patentee before: Wuhu Tonhe Automobile Fluid System Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171028 |