CN208672211U - A kind of micro-pressure sensor magnetic core connection structure - Google Patents
A kind of micro-pressure sensor magnetic core connection structure Download PDFInfo
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- CN208672211U CN208672211U CN201821466780.9U CN201821466780U CN208672211U CN 208672211 U CN208672211 U CN 208672211U CN 201821466780 U CN201821466780 U CN 201821466780U CN 208672211 U CN208672211 U CN 208672211U
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- magnetic core
- micro
- pressure sensor
- connection structure
- support column
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Abstract
The utility model discloses a kind of micro-pressure sensor magnetic core connection structures, including magnetic core, it is characterized by: the magnetic core is placed on mandril, the mandril includes the tip-lever support being connected on diaphragm of rubber and raised support column on the tip-lever support, and the upper end of support column is equipped with the corresponding claw being connected on the magnetic core.This micro-pressure sensor magnetic core connection structure of the utility model, junction structure is simple, and installation connective stability is good, has stronger practicability and preferable application prospect.
Description
Technical field
The utility model belongs to sensor technical field, more specifically to a kind of household electrical appliance micro-pressure sensor
Magnetic core connection structure.
Background technique
Micro-pressure sensor magnetic core connection structure is complicated in the prior art, and stability difference is further improved promotion.
Utility model content
The purpose of this utility model is to solve the problems, such as of the existing technology, and it is simple to provide a kind of structure, mounting stability
Good micro-pressure sensor magnetic core connection structure.
To achieve the goals above, the technical solution that the utility model is taken are as follows: provided this micro-pressure sensor magnetic
Core connection structure, including magnetic core, it is characterised in that: the magnetic core is placed on mandril, and the mandril includes being connected to diaphragm of rubber
On tip-lever support and raised support column on the tip-lever support, the upper end of support column be equipped with correspondence is connected to the magnetic core
On claw.
To keep above-mentioned technical proposal more detailed and specific, the utility model also provides optimization technique further below
Scheme, to obtain satisfied practical function:
The support column is hollow structure, and the claw is by being set to the notch that uniform intervals are arranged on the support column side wall
Slot is divided to be formed.
The upper end of the claw is equipped with the fixture block convexed to form outward, and magnetic core upper end inside edge is equipped with concave station,
The fixture block correspondence is connected on the concave station.
The spring lower supporting rod of support spring is embedded in the support column.
The upper end of the spring is supported below the adjusting nut on pedestal.
The tip-lever support is equipped with the magnetic core supporting block of protrusion.
This micro-pressure sensor magnetic core connection structure of the utility model compared with prior art, has the advantage that this reality
With novel this micro-pressure sensor magnetic core connection structure, structure is simple, installation connective stability it is good, have stronger practicability and
Preferable application prospect.
Detailed description of the invention
The label in content and figure expressed by the attached drawing to this specification is briefly described below:
Fig. 1 is micro-pressure sensor cross-sectional view；
Fig. 2 is micro-pressure sensor schematic diagram of internal structure；
Fig. 3 is magnetic core and mandril installation cooperation structure schematic diagram；
Fig. 4 is push rod structure schematic diagram；
Fig. 5 is coil skeleton structure schematic diagram.
In the figure, it is marked as 1, regulating nut, 2, coil protecting cover, 3, pedestal, 4, diaphragm of rubber, 5, intake cover, 6, mandril,
61, tip-lever support, 62, support column, 63, spring lower supporting rod, 64, claw, 65, magnetic core supporting block, 7, magnetic core, 8, filling-in bit terminal, 9,
Capacitor, 10, coil, 11, coil rack, 12, spring, 13, engaging lug.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation.
The utility model micro-pressure sensor magnetic core connection structure, including magnetic core 7, magnetic core 7 are placed on mandril 6, and mandril 6 includes
The tip-lever support 61 and raised support column 62 on tip-lever support 61 being connected on diaphragm of rubber 4,62 upper end of support column be equipped with pair
The claw 64 that should be connected on magnetic core 7.
In the utility model, support column 62 is hollow structure, and claw 64 is by being set to uniform intervals cloth on 62 side wall of support column
The gap slot set is divided to be formed.
In the utility model, as shown in Figure 3,4, mandril 6 includes the tip-lever support 61 that is connected on diaphragm of rubber 4 and is set to top
Raised support column 62 on pole socket 61.Support column 62 is hollow structure, and spring lower supporting rod 63 is embedded in support column 62.Spring 12
Lower end is supported on spring lower supporting rod 63, spring lower supporting rod 63 it is embedded in support column 62, can relative reduction micro-pressure sensor
Vertical height, subtracts lower volume, convenient for arrangement installation.The gap slot that uniform intervals are arranged on 62 side wall of support column is by the support
Column side wall is divided to form multiple claws 64.The upper end of claw 64 is equipped with the fixture block convexed to form outward, 7 upper end inner side edge of magnetic core
Edge is equipped with concave station, and fixture block correspondence is connected on concave station.The mandril 6 and 7 connection structure of magnetic core of such structure, stability is good, simplifies
Structure is easily installed arrangement.
In the utility model, it is equipped with the magnetic core supporting block 65 of protrusion on the tip-lever support 61 of mandril 6, magnetic is arranged in support
The lower end of core 6 cooperates 64 structure of claw of top, is supported with realizing to stablizing for magnetic core 7.
This connection structure of the utility model is applied on micro-pressure sensor, as shown in Figure 1, micro-pressure sensor includes air inlet
The pedestal 3 that lid 5 and intake cover 5 are cooperatively connected.It is equipped with diaphragm of rubber 4 between intake cover 5 and pedestal 3, supports the mandril 6 of magnetic core 7
On diaphragm of rubber 4, coil rack 11 is removably attachable on pedestal 3, and coil protecting cover 2 is covered with above pedestal 3.Intake cover
Gas nozzle is integrated on 5, coil rack 11 is removably attachable on pedestal 3, and coil protecting cover 2, overall structure are covered with above pedestal 3
Simply, good convenient for assembly and the detection and maintenance of internal component, service performance.
In the utility model, as shown in Figure 1, pedestal 3 be equipped with installation and adjustment nut 1 screw boss, screw boss with
Coil rack 11 is coaxially arranged in the vertical direction.Coil 10 is wrapped on coil rack 11, and coil rack 11 is equipped with and is pierced by
The jack of filling-in bit terminal 8 is equipped with capacitor 9 in the side of coil 10.The bullet of clamping spring 12 is equipped in the lower end of regulating nut 1
Spring upper supporting column, 6 center of mandril are equipped with the spring lower supporting rod 63 of 12 lower end of support spring.
In the utility model, as shown in Fig. 2,5,11 edge of coil rack is equipped with engaging lug 13, and engaging lug 13 is equipped with
Location hole, 3 upper surface of pedestal are equipped with the corresponding clamping groove for placing engaging lug, are equipped with correspondence in clamping groove and are plugged on positioning hole
Positioning pin.Such structure setting is, it can be achieved that coil rack 11 is detachably arranged in pedestal 3, installation easy to disassemble and dimension
It repairs, and the cooperation of engaging lug clamping groove and the mating connection of location hole and positioning pin, the stabilization of the connection of coil rack 11 can be improved
Property, avoid sensor because by vibration influence, coil position, which shifts, leads to the unstable of export resonance frequency.It can be directly by line
Ring framework is put down by picking up above pedestal 3, easy for assemble or unload, is equipped with coil protecting cover 2 in upper end, to protect internal lc circuit
Wound core structure.
In the utility model, as shown in fig. 1, the edge of diaphragm of rubber 4 is equipped with the boss to be formed that raises upward, pedestal 3
Lower edge be equipped with concave station, concave station and 5 interior sidewall surface of intake cover form the corresponding groove for being clamped boss.This structure setting can mention
High integrally-built sealing performance, it is ensured that good sealing effect.
In the utility model, by external female plug connecting terminal and internal enameled wire foot-binding terminal design with it is integrated.Pedestal 3 with
2 partition type of coil protecting cover design, convenient for assembly installation.
The utility model micro-pressure sensor is built-in with deformable diaphragm of rubber 4 that can be sensitive to fluid pressure, rubber
Diaphragm 4 and intake cover 5 are composed to form fine and close collection chamber.Magnetic core 7 is formed by ferrite sintered, and ferromagnetic material is contained in inside
Material supports magnetic core 7 by mandril 6, and spring 12 is supported between mandril 6 and regulating nut 1.The up and down motion of diaphragm of rubber 4
It is agitated by external force air pressure, 12 elastic force of spring keeps whole linear up and down motion；Micro-pressure sensor is upward by ambient pressure value
Movement, resonance frequency reduction reaches realization and is precisely controlled height of water level in cylinder after coil coupling；4 deformation quantity of diaphragm of rubber depends on
Suffered compressive load per unit area value on diaphragm 4, compressive load per unit area value are greater than 12 value of elastic of spring, and diaphragm of rubber 4 rises overally, single
Plane overstocks force value and is equal to 12 value of elastic balance between two forces of bullet, exports stable resonant frequency signal, is washed by this to be precisely controlled
Liquid level and sending correctly instruction in clothing machine inside.
Micro-pressure sensor is a lc circuit, it collectively constitutes LC oscillating circuit with circuit in computer board, passes through air pressure
Size changes inductance, to change the frequency of oscillating circuit, single-chip microcontroller in computer board detects frequency.Pass through frequency
Size judges water level.In general, there is a gas chamber in the cylinders such as washing machine or dish-washing machine, when water level changes, change gas chamber
Internal pressure size, this gas chamber is connected by plastic flexible pipe and micro-pressure sensor.When work, diaphragm of rubber 4
It is moved magnetic core 7 in the coil of LC oscillating circuit by zone of pressure to move up and down, magnetic core 7 moves up and down, and changes the inductance of coil
Amount, the variation of inductance are converted to frequency signal and are sent into monolithic after the starting of oscillation of LC oscillating circuit and amplifying circuit processing
Machine carries out inter-process, and obtained frequency signal is sent into the drive module of computer board of washing machine, and computer board is according to numerical values recited
To determine whether having reached preset water level, to issue instruction, the on-off of water valve, control water inlet, to reach control laundry are controlled
Water level height in machine.
This micro-pressure sensor magnetic core connection structure of the utility model, structure is simple, installation connective stability it is good, have compared with
Strong practicability and preferable application prospect.
The utility model is exemplarily described above in conjunction with attached drawing, but the utility model be not limited to it is above-mentioned
Mode, as long as the improvement or directly application of the various unsubstantialities carried out using the method concept and technical solution of the utility model
In other occasions, all fall in the protection scope of the utility model.
Claims (6)
1. a kind of micro-pressure sensor magnetic core connection structure, including magnetic core, it is characterised in that: the magnetic core is placed on mandril, described
Mandril includes the tip-lever support being connected on diaphragm of rubber and raised support column on the tip-lever support, the upper end of support column
Equipped with the corresponding claw being connected on the magnetic core.
2. micro-pressure sensor magnetic core connection structure described in accordance with the claim 1, it is characterised in that: the support column is hollow knot
Structure, the claw is divided by the gap slot for being set to uniform intervals arrangement on the support column side wall to be formed.
3. micro-pressure sensor magnetic core connection structure according to claim 2, it is characterised in that: the upper end of the claw is equipped with
The fixture block convexed to form outward, magnetic core upper end inside edge are equipped with concave station, and the fixture block correspondence is connected to the concave station
On.
4. micro-pressure sensor magnetic core connection structure described in accordance with the claim 3, it is characterised in that: be embedded in the support column
There is the spring lower supporting rod of support spring.
5. micro-pressure sensor magnetic core connection structure according to claim 4, it is characterised in that: the upper end of the spring supports
Below the adjusting nut being set on pedestal.
6. according to micro-pressure sensor magnetic core connection structure described in any one of claim 1 to 5, it is characterised in that: the mandril
Seat is equipped with the magnetic core supporting block of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466780.9U CN208672211U (en) | 2018-09-08 | 2018-09-08 | A kind of micro-pressure sensor magnetic core connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466780.9U CN208672211U (en) | 2018-09-08 | 2018-09-08 | A kind of micro-pressure sensor magnetic core connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672211U true CN208672211U (en) | 2019-03-29 |
Family
ID=65842770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821466780.9U Active CN208672211U (en) | 2018-09-08 | 2018-09-08 | A kind of micro-pressure sensor magnetic core connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208672211U (en) |
-
2018
- 2018-09-08 CN CN201821466780.9U patent/CN208672211U/en active Active
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