CN204007758U - Flow detector - Google Patents
Flow detector Download PDFInfo
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- CN204007758U CN204007758U CN201420429545.XU CN201420429545U CN204007758U CN 204007758 U CN204007758 U CN 204007758U CN 201420429545 U CN201420429545 U CN 201420429545U CN 204007758 U CN204007758 U CN 204007758U
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- 238000001514 detection method Methods 0.000 claims abstract description 88
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Flow detector of the present utility model has: counter portion, and this counter portion has the multiple character wheels that rotate according to the flow of detected object and the rotating shaft that is connected described character wheel; And permanent magnet, this permanent magnet is arranged at the predetermined described character wheel in multiple character wheels of described counter portion, near described counter portion, be provided with lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors, described lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors are formed on the substrate of a side that is positioned at described counter portion.
Description
Technical field
The utility model relates to a kind of intelligent flow detecting device about intelligent gas meter etc.
Background technology
In recent years, by electric signal, the intelligent gas meter that detects the information that obtains of gas flow and send to PC etc. is just received publicity.
As intelligent gas meter, known its has counter portion, permanent magnet and Magnetic Sensor (tongue tube, AMR (Anisotropic Magneto Resistance: anisotropic magnetoresistance) sensor, Hall element) etc., this counter portion has the multiple character wheels that rotate according to gas flow, this permanent magnet is arranged on the character wheel of wanting the consumption unit of detecting of counter portion, and the magnetic field detection that this Magnetic Sensor sends from permanent magnet goes out the revolution of counter portion and converts electric signal to.And, by being detected by Magnetic Sensor with electric signal transmission after treatment to being positioned at PC, the smart phone etc. in a distant place, thereby do not access each other even if be responsible for measuring the staff of gas flow, also can measure gas flow.
In prior art, as depicted in figs. 1 and 2, on the housing that accommodates counter, in the both sides of counter portion, dispose respectively Magnetic Sensor 1 and Magnetic Sensor 2.The detection faces of each Magnetic Sensor is configured to relative with the surfaces of revolution of character wheel.That is, by parts such as assisting base plate, fixtures, tongue tube, Hall element or a Magnetic Sensor are respectively installed at the upper and lower of gas meter character-wheel, are connected with gas meter mainboard in the mode of line simultaneously.And the character wheel of counter portion is rotated towards a direction, thus the output 2 that the output 1 detecting in conjunction with Magnetic Sensor 1 and Magnetic Sensor 2 detect can judge character wheel and revolve and make a circle, can detect the revolution of counter.For this reason, prepare two identical Magnetic Sensors, each Magnetic Sensor must clip counter portion and be configured to make the sense of rotation of character wheel relative with detection faces in its both sides.Therefore, except main substrate etc., also must Magnetic Sensor be set separately in the position relative with the surfaces of revolution of character wheel two assisting base plates of use are set, thereby have to maximize.
In addition, generally speaking, in intelligent gas meter, for example configure the magnet different from the permanent magnet that the is formed at character wheel object of changes of magnetic field (or make) near of gas meter, Magnetic Sensor should detect the magnetic field as the permanent magnet that is formed at character wheel of object, but because being subject to the impact in magnetic field of other magnets, thereby cannot detect the rotation of character wheel.Therefore, also exist and want to detect the demand that whether has this external magnetic field (disturbing magnetic field).To this, in the case of the structure of prior art as described above, the detected output 2 of the output 1 that Magnetic Sensor 1 is detected and Magnetic Sensor 2 becomes ON (leading to) output simultaneously, thereby can judge.But, in any case, all to prepare two identical Magnetic Sensors, each Magnetic Sensor must clip counter portion and be configured to make the sense of rotation of character wheel relative with detection faces in its both sides.Therefore, except main substrate etc., also must Magnetic Sensor be set separately in the position relative with the surfaces of revolution of character wheel two assisting base plates of use are set, thereby have to maximize.
Utility model content
The purpose of this utility model is, following flow detector is provided: near the impact in the magnetic field in the revolution that can detect character wheel of counter for dispose other magnets gas meter time also can detect; And can be with simpler structure detection outflow in miniaturization.
In a mode of flow detector of the present utility model, have: counter portion, this counter portion has the multiple character wheels that rotate according to the flow of detected object and the rotating shaft that is connected described character wheel; And permanent magnet, this permanent magnet is arranged at the predetermined described character wheel in multiple character wheels of described counter portion, near described counter portion, be provided with lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors, described lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors are formed on the substrate of a side that is positioned at counter portion.
Thus, in flow detector of the present utility model, by lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors are set simultaneously, thereby can measure the revolution of character wheel, and because of in exterior arrangement undesired magnet etc. produce external magnetic field (disturbing magnetic field) in the situation that, can produce output different when not producing external magnetic field, can judge whether produced external magnetic field by these output signals.Particularly, without preparing two identical Magnetic Sensors, without making each Magnetic Sensor clip counter portion and assisting base plate being set to make the sense of rotation of character wheel relative with detection faces in its both sides, can make its miniaturization.
In addition,, by the magnetic circuit that formed by magnet and the signal combination of 1 lose-lose removing from mould Magnetic Sensor, realized consumption metering and the detection of the outside low-intensity magnetic field that can't detect for 360 degree detection type Magnetic Sensors.In addition, by increasing by 1 360 degree detection type Magnetic Sensor, thereby can detect the outside high-intensity magnetic field of the output complete failure that causes lose-lose removing from mould Magnetic Sensor.
In addition, in another mode of flow detector of the present utility model, described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors are arranged on same substrate.
Thus, in flow detector of the present utility model, described lose-lose removing from mould Magnetic Sensor unlike the prior art, utilizes a Magnetic Sensor just can detect the revolution of character wheel.Therefore, lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors all can be arranged in same substrate, without the housing etc. that is newly provided for fixing two Magnetic Sensors, can miniaturization and make designs simplification.If employing said structure, can arrange lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors being formed on the main substrate of a side of counter portion or assisting base plate, can make its miniaturization.
In addition, in another mode of flow detector of the present utility model, when overlook described counter portion from the direction that can read the character described character wheel, the detection faces of described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors is positioned at the in-plane of described counter portion.
Particularly, originally when the interarea that is arranged at the main substrate of the flow detector of gas meter etc. is overlooked from the character read direction of character wheel, situation in in-plane is more, if and adopt the utility model such structure, as long as lose-lose removing from mould Magnetic Sensor is set on the main substrate that is originally arranged at gas meter etc. and 360 degree detection type Magnetic Sensors just can be worked.Thus, component number can be reduced, whole flow detector miniaturization can be made.
The detection faces of described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors is configured in the At The Height in the width up and down of the described character wheel while observation from the direction of principal axis of described counter portion.
Thus, can detect more reliably the magnetic field of permanent magnet.
In addition, in another mode of flow detector of the present utility model, permanent magnet more than two or two s' multiple is arranged to predetermined described character wheel.
Thus, in flow detector of the present utility model, can form stronger magnetic circuit, and can prevent that sensor from producing insensitive region (region that sensor can't detect).
In addition, in another mode of flow detector of the present utility model, described lose-lose removing from mould Magnetic Sensor is arranged on the position relative with the character wheel that is provided with described permanent magnet, and described 360 degree detection type Magnetic Sensors separate described lose-lose removing from mould Magnetic Sensor and are configured in the direction vertical with the rotating shaft of described counter portion.
Thus, in flow detector of the present utility model, by making spaced a predetermined distance from placement between described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors, thereby can prevent that described 360 degree detection type Magnetic Sensors from detecting is originally the magnetic field of the permanent magnet that is arranged at described character wheel that detects in order to measure revolution.And, place by making 360 degree detection type Magnetic Sensors separate described lose-lose removing from mould Magnetic Sensor in the direction vertical with the rotating shaft of described counter portion, thereby can detect comparatively evenly the disturbing magnetic field that the left and right of described lose-lose removing from mould Magnetic Sensor produces respectively.
In addition, in another mode of flow detector of the present utility model, a described permanent magnet is set in described predetermined character wheel, described lose-lose removing from mould Magnetic Sensor is arranged on the position relative with the character wheel that is provided with described permanent magnet, described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors with the direction of the shaft parallel of described counter portion on separate predetermined distance and arrange and place.
Even the in the situation that of structure as described above, also can detect revolution and the disturbing magnetic field of character wheel, and can make flow detector miniaturization.
According to the utility model, owing to the sensing device of gas meter character-wheel both sides being attached on the mainboard of a side of counter portion or on the assisting base plate of a side, therefore can simplified structure, save space.
In addition,, according to the utility model, the problem of inconsistency that the relative positional accuracy can solve each assisting base plate installation that is arranged at counter portion both sides time and between character wheel brings, can improve installation accuracy.
In addition, according to the utility model, can solve the broken of tongue tube or the change of sensitivity problem that causes of breaking, serviceable life problem; And each device waterproof and dustproof, the unpredictability problem that the labyrinths such as connection bring, can improving product reliability.
In addition, according to the utility model, saved and aimed at the goods, materials and equipments expenses such as tongue tube or the required assisting base plate of Hall, line, waterproof material are installed and installation, the required cost of labor of inspection associated component, saved material cost and cost of labor.
Brief description of the drawings
Fig. 1 is the figure that the flow detector of prior art is shown.
Fig. 2 is the figure that the flow detector of prior art is shown.
Fig. 3 be illustrate flow detector of the present utility model embodiment 1 from can read character direction observe time planimetric map.
Fig. 4 is the figure that flow detector, substrate and Magnetic Sensor while observation from the direction of principal axis of the rotating shaft of counter portion are shown.
Fig. 5 A is the figure that the state be provided with two permanent magnets on character wheel time of the present utility model is shown.
Fig. 5 B is the figure that the state be provided with four permanent magnets on character wheel time of the present utility model is shown.
Fig. 6 is the figure that the output signal of lose-lose removing from mould Magnetic Sensor of the present utility model when normal is shown.
Fig. 7 is the exemplary plot that the output signal of lose-lose removing from mould Magnetic Sensor of the present utility model in the time having interference is shown.
Fig. 8 is another exemplary plot that the output signal of lose-lose removing from mould Magnetic Sensor of the present utility model in the time having interference is shown.
Fig. 9 is the figure that the embodiment 2 of flow detector of the present utility model is shown.
Figure 10 is the figure that a state when permanent magnet is set on character wheel of the present utility model is shown.
Figure 11 is the figure that the embodiment 3 of flow detector of the present utility model is shown.
Embodiment
Below an embodiment of the present utility model is described.Fig. 3 is embodiment 1 of the present utility model.
Flow detector of the present utility model has: counter portion 100, and this counter portion has the multiple character wheels 101 that rotate according to the flow of detected object and the rotating shaft 105 that is connected described character wheel; Permanent magnet 102, this permanent magnet is arranged at the predetermined described character wheel in multiple character wheels, near described counter portion, be provided with lose-lose removing from mould Magnetic Sensor 103 and 360 degree detection type Magnetic Sensors 104, described lose-lose removing from mould Magnetic Sensor 103 and 360 degree detection type Magnetic Sensors 104 are formed on the substrate 106 of a side that is positioned at counter portion 100.And said structure is contained in gas meter housing (not shown).Gas meter housing is formed with the big or small window that a character making on character wheel exposes, and due to the character wheel rotation of described counter portion, the character of seeing from described window is changed.
Counter portion is formed with multiple discoid character wheels and rotating shaft.Each character wheel is formed as discoid, has both ends of the surface and curved surface, records 0～9 numeral at the curved surface of each character wheel.On accompanying drawing, 8 character wheels (8 just signals) are connected via rotating shaft altogether, and the character wheel that is positioned at the rightmost side represents after radix point the numerical value of the 1st, is arranged in order into expression units, tens, hundred figure places.Certainly, the layout of counter portion is not limited to this layout.
Permanent magnet is arranged at user in character wheel and wants especially the predetermined character wheel of measuring.Here be arranged at the character wheel of units.Permanent magnet is arranged at the inside of discoid character wheel, and wherein as shown in Figure 5A, it is a pair of that two permanent magnets are provided with in relative respectively position, the different magnetic poles of permanent magnet toward each other, thereby form magnetic circuit.In addition, here, be formed with two permanent magnets as a pair of, but as long as in pairs, for example, also can as Fig. 5 B, arrange 4., also can arrange 2 doubly several.
As Magnetic Sensor, on substrate 106, be provided with lose-lose removing from mould Magnetic Sensor 103 and 360 degree detection type Magnetic Sensors 104.This substrate both can be main substrate, for example also can be, and in a side of counter portion, complementary substrate (assisting base plate) was set, and on this assisting base plate, arranged.In addition, because lose-lose removing from mould sensor has anisotropy, therefore its magnetic field for specific direction is detected.In embodiment 1, owing to being provided with two permanent magnets in character wheel, therefore magnetic field is in the upper generation of the direction vertical with the rotating shaft of counter portion (dotted line of Fig. 3).About the detection faces of the lose-lose removing from mould Magnetic Sensor of embodiment 1, while overlooking counter portion from can read the direction of the character character wheel (, the in-plane of the planimetric map of Fig. 3), the detection faces of lose-lose removing from mould Magnetic Sensor is positioned at the in-plane of counter portion.Here the said direction that can read character refers to that a character on the character wheel that is generally speaking formed as counter portion in flow detector exposes from the window (not shown) of gas meter housing, and can read from this window the direction of the character character wheel in front.And be arranged to make the detection side of dual output type Magnetic Sensor to becoming above-mentioned dotted line direction.In addition, 360 degree detection type Magnetic Sensors do not have anisotropy and can detect from 360 directions of spending that are parallel to main substrate.The detection faces of 360 degree detection type Magnetic Sensors is also present in the in-plane (in-plane of the planimetric map of Fig. 3) of counter portion.In addition, as shown in Figure 4, the detection faces that preferred disposition becomes to make dual output type Magnetic Sensor and 360 to spend detection type Magnetic Sensors is positioned at the At The Height of the width up and down (diameter width of the end face of character wheel) of the character wheel while observation from the direction of principal axis of the rotating shaft of counter portion to the detection faces of these lose-lose removing from mould Magnetic Sensors and 360 degree detection type Magnetic Sensors.By adopting this structure, thereby can detect more reliably permanent magnet.
Here, lose-lose removing from mould Magnetic Sensor is a Magnetic Sensor, and is the sensor that can possess two outputs, is designed to a lead-out terminal different with the magnetic field intensity that another lead-out terminal detects.This lose-lose removing from mould Magnetic Sensor is for example lose-lose removing from mould AMR sensor.As the structure of lose-lose removing from mould Magnetic Sensor, known have the structure that for example PCT/JP2006/300483 communique is recorded, but be not limited to these structures.Conventionally,, if magnet approaches, lead-out terminal 1 and lead-out terminal 2 respectively carry out respectively the output of one time 1/0.For this output of 1/0, utilize and divide the signal processing units (not shown) such as the microcomputer that is arranged to carry out signal processing with detecting device, in the time that its control signal gets muddled, close the valve that divides the adjustment gas flow being arranged with flow detector.In addition, the consumption information detecting when normal, further use the radio communications such as such as Wifi by this electric signal transmission to the remote site such as PC and smart phone.
In addition, in the utility model, near counter portion, because having applied external magnetic field, the magnet beyond the permanent magnet in character wheel etc. (produces the situation of disturbing magnetic field), utilize this lose-lose removing from mould Magnetic Sensor to find to have produced the output different from the normal condition that does not produce disturbing magnetic field, the known signal that can utilize these outputs detects whether produced disturbing magnetic field.But, when external magnetic field is too strong, can lose efficacy.
In this case, except lose-lose removing from mould Magnetic Sensor, also by 360 degree detection type Magnetic Sensors are set simultaneously, thereby can under wider condition, detect external magnetic field.360 degree detection type Magnetic Sensors are the 360 degree detection type AMR sensors that can detect 360 degree directions for detection faces.Its structure is known according to WO2013/171977, PCT/JP2014/05072 etc., but is not limited to these structures.In addition, the placement of 360 degree detection type Magnetic Sensors is not subject to the restriction of direction.Therefore,, in embodiment 1, in the case of being only provided with the 360 degree detection type Magnetic Sensors for detection of disturbing magnetic field, according to position and the magnetic field intensity in the generation source of external magnetic field, sometimes cannot detect.Therefore, by lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors are set simultaneously, and compensation detects not enough part respectively, thereby can more intactly detect external magnetic field.
For specifically utilizing lose-lose removing from mould Magnetic Sensor to carry out the detection of external magnetic field, shown in Fig. 5～Fig. 7, representing table 1～3 of output state and the output mode of lose-lose removing from mould Magnetic Sensor below.As prerequisite, use two magnets, install according to different magnetic poles method outwardly.Strong work magnetic field that the magnetic circuit that two opposed polarities magnet (or magnet of the multiple of two (close magnet different magnetic poles outwardly)) outwardly forms has been realized sensing station, has weakened the impact in close external disturbance magnetic field, rear (there is no 360 degree detection type Magnetic Sensor one sides) simultaneously to a certain extent.
Table 1 and Fig. 6 do not produce the state of external magnetic field, i.e. the output schematic diagram of the lose-lose removing from mould Magnetic Sensor under normal condition.In addition,, because the output of lose-lose removing from mould Magnetic Sensor is not identical at each lead-out terminal, therefore the output width of its schematic diagram has some differences in lead-out terminal 1 and lead-out terminal 2.As shown in this table 1 and Fig. 6, can obtain the output of lead-out terminal 1 and the output of lead-out terminal 2, and in the situation that 360 degree detection type Magnetic Sensors are not reacted, be judged as and do not produce external magnetic field.When character wheel often revolves while turning around, each PIN pin of lose-lose removing from mould Magnetic Sensor respectively has 2 normal burst signals outputs, detects the revolution of the character wheel of counter portion.
Table 2, table 3 and Fig. 7, Fig. 8 are output state and the output schematic diagram that has applied the lose-lose removing from mould Magnetic Sensor under the state of external magnetic field.For example, as shown in table 2, Fig. 7, can there is a lead-out terminal and be continuously the situation of OFF (breaking) state.In addition, the in the situation that of table 3, Fig. 8, can there is another lead-out terminal and be continuously the situation of ON (leading to) state.The generation of this state changes according to various conditions such as the positions of the position of the position of permanent magnet, number, lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors, but mainly thinks there are this two kinds of patterns.Even if 360 degree detection type Magnetic Sensors are not reacted for external magnetic field, if produced the abnormal output as the output of table 2, table 3 and Fig. 7, lead-out terminal that Fig. 8 is shown in 1, also can be judged as and produce external magnetic field.Under the state of these tables 2, Fig. 7 and table 3, Fig. 8, whether produce external magnetic field although utilize lose-lose removing from mould Magnetic Sensor to detect, cannot detect exactly the rotation of character wheel.When in this situation, send these control signals by the signal processing units such as microcomputer (not shown), to make dividing with described flow detector closing etc. for adjusting the valve of gas flow of being arranged.
On the other hand, 360 degree detection type Magnetic Sensors detect external magnetic field, and do not depend on the output state of lose-lose removing from mould Magnetic Sensor.In this case, if 360 degree detection type Magnetic Sensors have been made reaction for external magnetic field, be judged as and produced external magnetic field.According to 360 degree detection type Magnetic Sensors, can judge whether to have produced external magnetic field by 1/0, be judged as (1 situation) produced external magnetic field in the situation that, with lose-lose removing from mould Magnetic Sensor in the same manner, transmit control signal based on this output signal, to make dividing with described flow detector closing etc. for adjusting the valve of gas flow of being arranged.
In addition, about the detection of external magnetic field, without strictly distinguishing lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors use.As long as the signal of any one sensor output " having external magnetic field ", just closes valve etc. immediately.That is, when have 360 degree detection type Magnetic Sensors inductions less than external disturbance magnetic field near time, by the signal output judgement of lose-lose removing from mould Magnetic Sensor; When the external disturbance magnetic field that has the signal complete failure that causes lose-lose removing from mould Magnetic Sensor near time, by the signal output judgement of 360 degree detection type Magnetic Sensors.
Thus, in the utility model, can utilize such a sensor of lose-lose removing from mould Magnetic Sensor to carry out the revolution of the character wheel of detection counter portion.Therefore, without only to detect and two Magnetic Sensors are set in order to be rotated, without only for two magnetic sensor configuration are arranged to housing, substrate etc. separately in the both sides of counter portion.Therefore, lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors can be arranged on same substrate, can miniaturization and can make designs simplification.In addition,, according to the difference of use, certainly also lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors can be arranged to different substrate.In addition, by use lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors simultaneously, whether produced external magnetic field thereby can detect more reliably.
As shown in Figure 3, be preferably, lose-lose removing from mould Magnetic Sensor is arranged at the position relative with the character wheel that is provided with permanent magnet.Lose-lose removing from mould Magnetic Sensor has anisotropy, in order to read the revolution of the character wheel that is provided with permanent magnet, is arranged at the position relative with the character wheel that is provided with permanent magnet and more easily reads exactly revolution.
Place by making to separate predetermined distance between lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors, thereby can prevent that 360 degree detection type Magnetic Sensors from detecting is originally the magnetic field that is arranged at the permanent magnet on character wheel in order to measure revolution.And, by making lose-lose removing from mould Magnetic Sensor alignment arrangements in the direction vertical with the rotating shaft of counter portion, thereby can detect comparatively evenly the disturbing magnetic field that the left and right of lose-lose removing from mould Magnetic Sensor produces respectively.
Below, the structure of embodiment 2 and embodiment 3 is described.
About counter portion, in embodiment 2, as shown in figure 10, except the permanent magnet in the character wheel of wanting in counter portion to detect is made as one, other is all identical with the counter portion of embodiment 1.In this case, the generation direction in magnetic field becomes and the direction (direction vertical with the dotted line direction of Fig. 9) of the shaft parallel of counter portion.About the detection faces of lose-lose removing from mould Magnetic Sensor, and while overlooking counter portion from can read the direction of the character character wheel (, the in-plane of the planimetric map of Fig. 9), the detection faces of lose-lose removing from mould Magnetic Sensor is positioned at the in-plane of counter portion.And the detection side of lose-lose removing from mould Magnetic Sensor is to being set to the direction vertical with above-mentioned dotted line direction.In addition, 360 degree detection type Magnetic Sensors do not have anisotropy, and can detect from 360 directions of spending that are parallel to main substrate.The detection faces of 360 degree detection type Magnetic Sensors is also present in the in-plane (in-plane of the planimetric map of Fig. 9) of counter portion.The restriction of the direction can not be subject to arranging time.Even if adopt this structure, also can obtain the application's effect.
In addition, in embodiment 3, in the case of using the such permanent magnet of Figure 10, due to the shaft parallel of magnetic direction and counter portion, therefore as shown in figure 11, also can become with on the relative basis of character wheel of wanting to detect in lose-lose removing from mould magnetic sensor configuration, by lose-lose removing from mould Magnetic Sensor and 360 spend detection type Magnetic Sensors with the direction of shaft parallel on be configured.
In addition, be preferably, lose-lose removing from mould Magnetic Sensor separates predetermined distance with 360 degree detection type Magnetic Sensors and arranges placement in the direction vertical with the rotating shaft of counter portion.
The configuration of lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors has the whole bag of tricks as required, is therefore not limited to the configuration of illustrations.In addition, about the structure of lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors, be not limited to the patent documentation of disclosure.
In addition, lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors can be installed on the mainboard of any side in the character wheel side of gas meter or assisting base plate, the arrangement method of sensor, direction are for arbitrarily can induction mode.
In addition, as detected object, be mainly used for combustion gas, but be not limited to this.Also can in water meter etc., use.
Industrial practicality
Flow detector of the present utility model, can be applicable to can be in miniaturization with the flow detector of simpler structure detection outflow.
Label declaration
1,2 Magnetic Sensors
100 counter portions
101 character wheels
102 permanent magnets
103 lose-lose removing from mould Magnetic Sensors
104 360 degree detection type Magnetic Sensors
105 rotating shafts
106 substrates
Claims (7)
1. a flow detector, has: counter portion, and this counter portion has the multiple character wheels that rotate according to the flow of detected object and the rotating shaft that is connected described character wheel; And permanent magnet, this permanent magnet is arranged at the predetermined described character wheel in multiple character wheels of described counter portion,
Near described counter portion, be provided with lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors, described lose-lose removing from mould Magnetic Sensor and 360 degree detection type Magnetic Sensors are formed on the substrate of a side that is positioned at described counter portion.
2. flow detector as claimed in claim 1, is characterized in that,
Described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors are arranged on same substrate.
3. flow detector as claimed in claim 1 or 2, is characterized in that,
When overlook described counter portion from the direction that can read the character described character wheel, the detection faces of described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors is positioned at the in-plane of described counter portion.
4. flow detector as claimed in claim 3, is characterized in that,
The detection faces of described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors is configured in the At The Height in the width up and down of the described character wheel while observation from the direction of principal axis of described counter portion.
5. the flow detector as described in any one in claim 1,2,4, is characterized in that,
Permanent magnet more than two or two s' multiple is arranged to predetermined described character wheel.
6. flow detector as claimed in claim 5, is characterized in that,
Described lose-lose removing from mould Magnetic Sensor is arranged on the position relative with the character wheel that is provided with described permanent magnet, and described 360 degree detection type Magnetic Sensors separate described lose-lose removing from mould Magnetic Sensor and place in the direction vertical with the rotating shaft of described counter portion.
7. the flow detector as described in any one in claim 1,2,4, is characterized in that,
A described permanent magnet is set in described predetermined character wheel, described lose-lose removing from mould Magnetic Sensor is arranged on the position relative with the character wheel that is provided with described permanent magnet, described lose-lose removing from mould Magnetic Sensor and described 360 degree detection type Magnetic Sensors with the direction of the shaft parallel of described counter portion on separate predetermined distance and arrange and place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429545.XU CN204007758U (en) | 2014-07-31 | 2014-07-31 | Flow detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429545.XU CN204007758U (en) | 2014-07-31 | 2014-07-31 | Flow detector |
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| Publication Number | Publication Date |
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| CN204007758U true CN204007758U (en) | 2014-12-10 |
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| CN201420429545.XU Expired - Lifetime CN204007758U (en) | 2014-07-31 | 2014-07-31 | Flow detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596605A (en) * | 2015-02-04 | 2015-05-06 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
| CN105203172A (en) * | 2015-07-20 | 2015-12-30 | 谈晓彬 | Electronic direct-reading character wheel box of liquid seal water meter |
-
2014
- 2014-07-31 CN CN201420429545.XU patent/CN204007758U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596605A (en) * | 2015-02-04 | 2015-05-06 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
| CN104596605B (en) * | 2015-02-04 | 2019-04-26 | 江苏多维科技有限公司 | A kind of magnetic automation flow recorder |
| CN105203172A (en) * | 2015-07-20 | 2015-12-30 | 谈晓彬 | Electronic direct-reading character wheel box of liquid seal water meter |
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