CN210089764U

CN210089764U - Oil mass sensor data board and oil mass sensor assembly based on hall switch

Info

Publication number: CN210089764U
Application number: CN201920834450.9U
Authority: CN
Inventors: 张斌; 姚建平
Original assignee: Hubei Iridium Electronic Polytron Technologies Inc
Current assignee: Hubei Iridium Electronic Polytron Technologies Inc
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-02-18
Anticipated expiration: 2029-06-04

Abstract

The utility model provides an oil mass sensor data board and oil mass sensor assembly based on hall switch, oil mass sensor data board includes rectangular shape PCB board, a plurality of inductive switch module, and a plurality of inductive switch module arrange in proper order to weld on rectangular shape PCB board and constitute array circuit with resistance, and the combined action provides the instrument with oil level information; the inductive switch module is formed by sequentially connecting a Hall switch, a signal reversing module and a signal amplifying module. The oil sensor assembly is arranged based on the oil sensor data board. The utility model has the characteristics of high assembly and manufacturing efficiency, low processing cost, high product use reliability, long service life, wide application range and the like; the innovative magnetic induction switch circuit unit based on the Hall switch is formed to replace a reed switch, the problems that the processing and detection of the reed switch are complex and the reed switch is easy to damage due to vibration are solved, the after-sale failure rate is reduced, the dependence on an inlet piece is solved, and the economic benefit is improved.

Description

Oil mass sensor data board and oil mass sensor assembly based on hall switch

Technical Field

The utility model belongs to the fuel level sensor data board and the sensor assembly of car oil tank relate to a fuel level sensor data board and sensor assembly based on hall switch.

Background

The oil mass sensor assembly for detecting the oil level state in an oil tank on the existing automobile mostly adopts a magnetic induction type structure and comprises a data pipe and a magnetic floater, and the oil mass sensor in the data pipe generally adopts a reed switch as a switch device to determine the position of a liquid level. For example, in the utility model patent with the publication number CN201206516U, an oil amount sensor is disclosed, and there are problems that:

1. the reed switch is packaged by glass and needs to be shaped before assembly, but defective products are generated by equipment or manual shaping in different degrees, so that the product cost is improved, most importantly, invisible faults can occur in the reed switch in the shaping and assembling processes, the invisible faults cannot be found in the detection of products, and the produced products flow to terminal customers to cause adverse effects;

2. the finished product is influenced by external force (such as vibration) in the using process to cause the damage of the reed pipe, and the service life of the product is influenced;

3. because one sensor uses a large number of reed pipes, the consistency of the required pipes is high, domestic products generally cannot meet the use requirements, most of the prior sensors are guaranteed by import, and the cost of the product is further increased due to the influence of price rise and the like caused by import restriction when the use amount is large;

4. due to the special property of reed switch packaging in the production process, the automatic assembly is inconvenient and can only be completed manually, so that the quality consistency of a product assembly is poor, the after-sale failure rate is high, and the problem is always troublesome in the industry at present.

Disclosure of Invention

For overcoming a great deal of problem that oil sensor adopted the tongue tube to exist among the prior art, the utility model provides an oil mass sensor data board and sensor assembly based on hall switch, internal circuit adopt hall switch and electronic components to pass through the circuit combination, the module circuit of making to replace the tongue tube, have characteristics such as convenient with low costs of manufacturing, assembly anti-seismic performance obtains greatly improving, and hall switch device performance at present homemade accords with the operation requirement completely, does not receive the import restraint, and product application range is wide.

The utility model discloses a solve technical problem and adopt following technical scheme:

a hall switch based oil mass sensor data board, comprising: rectangular shape PCB board, a plurality of inductive switch module, its characterized in that: the induction switch modules are sequentially arranged and welded on the strip-shaped PCB to form an array circuit with the resistors, and are connected to the signal output terminal through the wire harness under the combined action to provide oil level information for the instrument;

the inductive switch module comprises a Hall switch, a signal reversing module and a signal amplifying module, and is formed by sequentially connecting the Hall switch, the signal reversing module and the signal amplifying module; the inductive switch module is used for replacing a reed switch.

The inductive switch module includes: the circuit comprises a PCB, a Hall switch, a first branch resistor and a first MOS (metal oxide semiconductor) tube, wherein a second branch resistor and a second MOS tube are connected and welded on the PCB to form an inductive switch module; the first branch resistor and the first MOS tube form a signal reversing module, and the second branch resistor and the second MOS tube form a signal amplifying module.

The Hall switch and the first branch resistance, the first MOS tube, the second branch resistance and the second MOS tube of the inductive switch module are all patch elements, so that automatic equipment operation mounting can be realized, the consistency of the assembly efficiency and the overall product quality is improved, the production cost is greatly reduced, and the economic benefit is improved.

The oil mass sensor assembly formed based on the scheme comprises a magnetic floater, a metal pipe, an upper fixing flange and a lower support, wherein the oil mass sensor data board based on the Hall switch is placed in the metal pipe to form the data pipe, and the magnetic floater is sleeved on the outer part of the data pipe; the lower end of the metal pipe is fixed in a magnetic floater and acts on a data board in the data pipe to detect and output oil level information; the upper part of the data pipe is connected with the upper fixed flange, the lower part of the data pipe is connected with the lower bracket, and the upper end and the lower end of the data pipe are sealed.

The utility model has the advantages that: the product has the characteristics of high assembly and manufacturing efficiency, low processing cost, high use reliability, long service life, wide application range and the like; the magnetic induction switch circuit unit module formed based on the Hall switch replaces a reed switch, the problems that the processing and detection of the reed switch are complex and the reed switch is easy to damage due to vibration are solved, the after-sale failure rate of products is reduced, the dependence on inlet parts is solved, and the economic benefit is improved.

Drawings

Fig. 1 is a schematic diagram of the sensing switch module of the present invention.

Fig. 2 is a circuit component layout diagram of the PCB board of the sensing switch module of the present invention.

Fig. 3 is the utility model discloses well oil mass sensor data board's permutation and combination schematic diagram.

Fig. 4 is the PCB circuit element arrangement assembly of the medium oil sensor data board of the present invention.

Fig. 5 is a structural view of the fuel amount sensor assembly according to the present invention.

Detailed Description

With reference to fig. 1 and 2 to show the principle, the induction switch module DJ shown in fig. 1 includes a hall switch H1, a first branch resistor R1-1, a second branch resistor R1-2, a first MOS transistor Q1-1, and a second MOS transistor Q1-2, which form an induction switch module; the first branch resistor R1-1 and the first MOS transistor Q1-1 form a signal reversing module, and the second branch resistor R1-2 and the second MOS transistor Q1-2 form a signal amplifying module; the Hall switch is sequentially connected with the signal reversing module and the signal amplifying module to form an inductive switch module; the inductive switch module is used for replacing a reed switch; the Hall switch H1 outputs a switching signal under the influence of an external magnetic field, and outputs a corresponding large-current switching signal through the amplification of MOS tubes Q1-1 and Q1-2, thereby meeting the load requirements of instruments with various specifications.

As shown in fig. 1 and 2, in the composed inductive switch module, 1 is a positive power supply, 2 is a signal output terminal, and 3 is a negative power supply.

The signal commutation module and the signal amplification module are not limited to the structure shown in fig. 1, and other structures can be easily implemented for the prior art in this field, for example: the MOS tube is replaced by a triode.

As shown in fig. 1 and 2, the hall switch and the first branch resistor, the first MOS transistor, the second branch resistor, and the second MOS transistor of the inductive switch module preferably employ patch elements, so that the automatic mounting of the device can be realized, the assembly efficiency and the overall quality of the product are improved, the production cost is greatly reduced, and the economic benefit is improved.

As shown in fig. 3, the oil sensor data board includes an inductive switch module DJ1 and a resistor R1, an inductive switch module DJ2 and a load R2, an inductive switch module DJ3 and a load R3, and an inductive switch module DJn and a resistor Rn are sequentially arranged to form a data board circuit, and the inductive switch module is influenced by an external magnetic field to output a corresponding value to be provided to the meter for display.

Fig. 4 shows, assembly is arranged to oil mass sensor data board PCB board circuit, including inductive switch module 1, rectangular shape PCB board 2 and resistance, arranges the inductive switch module component that fig. 1 shows on the PCB board of pasting dress rectangular shape according to requiring to arrange in fig. 4 and distributes the data board of constituteing the oil mass sensor, shows the oil mass information through external pencil 4 with signal transfer to instrument.

As shown in fig. 5, an oil sensor assembly includes a magnetic float 7 and a metal tube 6, the data board of the oil sensor shown in fig. 4 is placed in the metal tube to form a data tube, and the magnetic float 7 is sleeved on the data tube; the magnetic floater interacts with a data board in the data pipe to detect and output oil level information; the upper part of the data pipe is connected with the upper flange 5, the lower part of the data pipe is connected with the lower support 8, the upper end and the lower end of the data pipe are sealed, and the liquid to be detected cannot enter the data pipe.

The utility model discloses in, the theory of operation of fuel gauge sensor assembly as follows: the oil mass sensor is installed in the oil tank of car, the outside magnetic buoy of data pipe floats on the oil level constantly, the inside inductive switch module of data pipe passes through magnetic induction, detect the position of buoy, rethread circuit conversion output and position relevant data, convey to instrument or other equipment, show the liquid level state or carry out other actions, because data pipe external material is stainless steel or aluminum product (according to being detected different medium selection material) and be encapsulated situation, fine protection the inside electronic components of data pipe not corroded, make it can obtain the application in the liquid of various different properties, wide in use range, and obvious in economic benefits.

The present invention is not limited to the selection and combination of the above-mentioned additional technical features, which can be combined at will (on the premise that those skilled in the art can understand); for those skilled in the art, the technical features of the present invention can be combined without creative efforts, and all technical solutions within the implementable range of the technical concept of the present invention should fall into the protection scope of the present invention.

Claims

1. A hall switch based oil mass sensor data board, comprising: rectangular shape PCB board, a plurality of inductive switch module, its characterized in that: the induction switch modules are sequentially arranged and welded on the strip-shaped PCB to form an array circuit with the resistors, and are connected to the signal output terminal through the wire harness under the combined action to provide oil level information for the instrument;

the inductive switch module comprises a Hall switch, a signal reversing module and a signal amplifying module, and is formed by sequentially connecting the Hall switch, the signal reversing module and the signal amplifying module.

2. The Hall switch based oil mass sensor data board of claim 1, wherein: the inductive switch module includes: the circuit comprises a PCB, a Hall switch, a first branch resistor and a first MOS (metal oxide semiconductor) tube, wherein a second branch resistor and a second MOS tube are connected and welded on the PCB to form an inductive switch module; the first branch resistor and the first MOS tube form a signal reversing module, and the second branch resistor and the second MOS tube form a signal amplifying module.

3. The Hall switch based oil mass sensor data board of claim 2, wherein: and the Hall switch and the first branch resistor, the first MOS tube, the second branch resistor and the second MOS tube of the induction switch module all adopt patch elements.

4. The utility model provides an oil mass sensor assembly, includes magnetism float, tubular metal resonator, goes up mounting flange, lower carriage, its characterized in that: a Hall switch-based oil quantity sensor data plate as claimed in claim 1 or claim 2 or claim 3 is placed in a metal tube to form a data tube, and a magnetic floater is sleeved on the outer part of the data tube; the lower end of the metal pipe is fixed in a magnetic floater and acts on a data board in the data pipe to detect and output oil level information; the upper part of the data pipe is connected with the upper fixed flange, the lower part of the data pipe is connected with the lower bracket, and the upper end and the lower end of the data pipe are sealed.