CN208672703U - A kind of radiation resistance Hall current sensor - Google Patents

Abstract

A kind of radiation resistance Hall current sensor, including Hall element, arch door shape magnetism gathering rings, circuit board, arch door shape magnetism gathering rings are that two and half arch door shape magnetism gathering rings are formed, and there are a notches to install Hall element on an arch door shape magnetism gathering rings；The magnetic field signal that Hall element detection electric current generates connects circuit board, and circuit board is equipped with input power and signal output end；The insertion of half arch door shape magnetism gathering rings is mounted in arch door shape set, and the center of arch door shape set is equipped with circular hole, positioned at the center of two and half arch door shape magnetism gathering rings.

Description

A kind of radiation resistance Hall current sensor

Technical field

The utility model relates to Hall current sensors, in particular for using in the environment such as high vibration, impact, irradiation Current detection sensor.

Background technique

Hall current sensor is the device using detection electric current made of Hall effect principle.Its feature protruded is energy It is voltage signal or current signal in the output for being electrically isolated measurement, precision is high, and small power consumption, sound construction is small in size, and it is light-weight, Service life is long, easy for installation, and response frequency is high, vibration resistance, is not afraid of the pollution such as dust, greasy dirt, steam and salt fog or corrosion.Its work Principle is that Hall open loop type design concept is introduced in Hall effect principle, will be generated around electrified wire using ring concentrator Magnetic field concentration, which is got up, is supplied to magneto sensor, then is converted to weakness signal, amplified output voltage signal by magneto sensor.It is this Sensor is suitable for measuring direct current few kilohertz electric current, and performance is stablized, high reliablity.

Utility model content

The utility model aim is to propose a kind of small size, perforation structure, resistance to high vibration, impact, radiation resistance type Hall electricity Flow sensor is a kind of magneto-dependent sensor using Hall effect principle, can be used in environment such as high vibration, impact, irradiation Used in current detection sensor.

Technical solutions of the utility model are radiation resistance Hall current sensors, including Hall element, arch door shape magnetism gathering rings, Circuit board, arch door shape magnetism gathering rings are that two and half arch door shape magnetism gathering rings are formed, and there are a notches on an arch door shape magnetism gathering rings Hall element is installed；The magnetic field signal that Hall element detection electric current generates connects circuit board, and circuit board is equipped with input power and signal Output end；

The insertion of half arch door shape magnetism gathering rings is mounted in arch door shape set, and the center of arch door shape set is equipped with circular hole, is located at two and half The center of arch door shape magnetism gathering rings.

The volume of the utility model is less than 40mm × 20mm × 35mm.

Beneficial effect, the utility model Hall current sensor are to solve in high vibration resistance (19.6g), impact resistance Punched-type structure, actual volume are carried out in the case where (1200g), resistance to high acceleration (500g), Flouride-resistani acid phesphatase (20Krad (si)) are as follows: Length × width × height: 38mm × 19mm × 33mm；Current measuring range is larger (measurement that can perforate is less than electric current 20A), and passes Sensor performance is normal, and shell is indeformable, does not damage, what function was normally developed.This Hall current sensor is according to detailed Specification has carried out qualification test, has disposably passed through qualification test, and examined with user's complete product, has met user Demand.

Detailed description of the invention

Fig. 1 is the utility model circuit diagram.

Fig. 2 is the utility model magnetism gathering rings figure.

Fig. 3 is the utility model Hall current sensor product casing figure.

Specific embodiment

In Fig. 1, the magnetoelectricity conversion circuit of Hall element, Zero flux electricity of the Hall element H output voltage after amplifier N1 Road, to compensate current sampling output circuit (a pair of of power tube output).In circuit theory conceptual scheme: Hall current sensor route It consists of three parts, first part is the magnetoelectricity conversion circuit for having hall magnetic component, and second part is that hall magnetic component is defeated The amplified Zero flux circuit of voltage out, Part III are compensation current sampling output circuit

Structural design scheme: the sensor requirements are small in size, we reduce it under the premise of guarantee magnet ring poly- magnetic property Thickness reduces volume, and product measures low current mode using intermediate perforation, draw positive supplies from cover board face with 5 leads, bear Power supply, power ground (two-wire), signal output, power ground (two-wire) facilitate user to connect power supply and output, magnetism gathering rings figure, shell mechanism Figure is shown in Fig. 2, Fig. 3.Hall plate H is installed in the position of notch 5 in magnetism gathering rings figure, due to the high vibration resistance of product requirement (19.6g), resistance to punching (1200g), resistance to high acceleration (500g), Flouride-resistani acid phesphatase (20Krad (si)) are hit, on sheathing material, non-magnetic aluminium has been used to close Golden material, improves vibration resistance, impact resistance, resistance to high acceleration ability, and Radiation hardness can be improved in metal material；Cover board uses Damascene structures design, reduces gap, can also be improved Radiation hardness.

Hall current sensor (puts into the magnetic field that current in wire generates in circular hole to gather together), and magnetism gathering rings turn for electromagnetism Pure iron core, the Hall element changed carries out the parts such as magnetoelectricity is converted, signal amplifies, signal output: magnetism gathering rings is two and half arch door shapes Magnetism gathering rings 1,2 form (can be asymmetrical), and there are a notches 5 to install Hall element on an arch door shape magnetism gathering rings； The magnetic field signal that Hall element detection electric current generates connects circuit board, and circuit board is equipped with input power and signal output end；Hall member The magnetic field signal that part detection electric current generates connects circuit board, and circuit board is equipped with input power and signal output end；The poly- magnetic of half arch door shape The insertion of half arch door shape magnetism gathering rings of ring is mounted in arch door shape set 4, and the center of arch door shape set is equipped with circular hole 3, is located at two and half arched doors The center of shape magnetism gathering rings.

Arch door shape is put on equipped with stem 6.

Although the utility model has been disclosed with preferred embodiment as above, so it is not intended to limit the utility model.This reality It is without departing from the spirit and scope of the utility model, each when that can make with novel those of ordinary skill in the art Kind changes and retouches.Therefore, the protection scope of the utility model is subject to view those as defined in claim.

Claims (2)

1. a kind of radiation resistance Hall current sensor, it is characterized in that including Hall element, arch door shape magnetism gathering rings, circuit board, arched door Shape magnetism gathering rings are that two and half arch door shape magnetism gathering rings are formed, and there are a notch installation Hall members on an arch door shape magnetism gathering rings Part；The magnetic field signal that Hall element detection electric current generates connects circuit board, and circuit board is equipped with input power and signal output end；Semiarch Door shape magnetism gathering rings insertion is mounted in arch door shape set, and the center of arch door shape set is equipped with circular hole, is located at two and half arch door shape magnetism gathering rings Center.

2. radiation resistance Hall current sensor according to claim 1, it is characterized in that the current sensor volume is less than 40mm×20mm×35mm。