RU176183U1 - Electroshock metal detector - Google Patents

Abstract

The utility model relates to portable hand-held metal detectors designed for screening for metal objects. A metal-shock detector with an electric shock includes a housing with an electronic circuit of a metal detector with a detecting coil and an electronic circuit of an electric shock device with a high-voltage transformer and output working electrodes. The output working electrodes are located on the front of the housing, and an electrode of one polarity located near or on the central longitudinal axis of the housing is common to form a high voltage electrical circuit for at least two electrodes of another polarity located near the edges of the front of the housing. The high voltage transformer of the stun device is located inside the detection coil. The sound indicator is made common to indicate the operation of the electronic circuit of the metal detector and the electronic circuit of the stun device. The electronic circuits of the metal detector and the stun device are made on a single printed circuit board, which is marked out into at least two segments, mainly by creating perforation of the board, with the possibility of mechanical separation of the board into segments along the perforation lines and the optimal placement of segments in the device’s body along the longitudinal axis of the case, or across it, either in a combination of a longitudinal and transverse arrangement, or in another arrangement suitable for a given housing design, on a plane and / or in volume inside the said housing, and the necessary electrical connections between circuit elements located on the various segments mentioned are made by volume mounting. The technical result is to increase the operational efficiency of the stun device in the metal detector while reducing the size of the device. 13 s.p. f-ly, 2 ill.

Description

The technical field to which the utility model relates.

The utility model relates to portable hand-held metal detectors designed for screening for the detection of metal objects, primarily weapons and ammunition, for example, at the entrance to public places where their location is not allowed.

State of the art

Hand-held metal detectors are widely known for detecting metal objects, primarily weapons and ammunition hidden in the clothes of an inspected person, for example, a metal detector according to US patent application No. US 20130021192 A1 [1]. The publication describes a hand-held metal detector containing a handle that goes into an elongated flattened case, between which there is a platform with metal detector controls located on it, such as devices for turning the device on / off, settings, switching operating modes, etc.

A disadvantage of the analogue is the inability to use the device as an electroshock device (ESD) in the event of a danger to the user during the search, for example, if a person or weapon is found to be searched for by an inspected person and attempted to be used or activated.

As a prototype of a utility model, a hand-held metal detector with an integrated ESA was selected according to US patent application No. US 20070063848 A1 [2]. Metal detector - the prototype contains a handle that goes into an elongated flattened body, and between the handle and the body are the display and control elements of the metal detector, respectively. A detecting coil (or several coils assembled, for example, a magnetizing and a receiving coil) is located inside the housing; two damaging electrodes of the ESA are located at the end of the housing symmetrically to the longitudinal axis of the housing.

The disadvantage of the prototype is the low operational efficiency of the ESA in the metal detector. Low operational efficiency, understood as the biological effectiveness of the electroshock impact on the target, is associated with a slight spacing of the shock electrodes of the ESA from each other, which leads to the appearance of a small current loop flowing when a high voltage discharge of the ESA through the target body occurs.

Another disadvantage of the prototype lies in the irrational arrangement of the detection coil in the metal detector and the electronic damaging circuit of the ESA. The detecting coil and the electronic circuit are located one after another, increasing the dimensions of the metal detector.

Currently, there is no information on the serial production and sales of models of metal detectors with electroshock exposure.

The purpose of the utility model is to create a metal detector with an electroshock effect, devoid of the disadvantages of the prototype by increasing the operational efficiency of the ESA in the metal detector while reducing the dimensions of the device.

This goal is achieved in that the metal detector with an electroshock effect, consisting of a housing with an electronic circuit of a metal detector with at least one detecting coil and an audio indicator, an electronic circuit of an electroshock device with a high-voltage transformer and output working electrodes, said output working electrodes are placed on the front of the housing, and the electrode of the same polarity, located near or on the Central longitudinal axis of the housing, is a common To form a high-voltage electrical circuit for at least two electrodes of a different polarity located near the edges of the front of the housing, a high-voltage transformer of an electroshock device is located inside at least one detecting coil, and a sound indicator is made common to indicate the operation of the electronic circuit of the metal detector and the electronic circuit of the electroshock device .

An additional feature is that the said output electrodes of the same polarity are located symmetrically with respect to the longitudinal axis of the said housing.

An additional feature is that the metal detector is additionally equipped with an explosive detection circuit.

An additional feature is that the metal detector is additionally equipped with a remote communication circuit for transmitting information and alarm signals, mainly via the Wi-Fi protocol.

An additional feature is that the aforementioned electronic circuits of the metal detector and the stun device are made on a single printed circuit board, which is marked out into at least two segments, mainly by creating perforation of the board, with the possibility of mechanical separation of the board into segments along the perforation lines and optimal placement of segments in the device’s body along the longitudinal axis of the housing, either across it, or in a combination of longitudinal and transverse locations, or in another suitable for this the housing structure is located, on the plane and / or in the volume inside the housing, and the necessary electrical connections between circuit elements located on the different segments mentioned are made by volume mounting.

An additional feature is that the aforementioned electronic circuits of a metal detector and an electroshock device can only be triggered alternately.

An additional feature is that it is equipped with at least one additional output working electrode located on the side surface of the housing connected to the secondary winding of the aforementioned high voltage transformer.

An additional feature is that the metal detector is additionally equipped with a safety unit - a check, making it impossible to turn on the mentioned electronic circuit of the electroshock device when it is snatched from the user's hand.

An additional feature is that the said output working electrodes are protruding above the front of the housing.

An additional feature is that the said output working electrodes are made not protruding above the front of the housing.

An additional feature is that part of said output working electrodes is made protruding above the front of the casing, and the other part of said working electrodes is made not protruding above the front of the casing.

An additional feature is that the distance between any two adjacent opposite-polarity output working electrodes does not exceed 40 mm, which corresponds to the Russian legislation on weapons.

An additional feature is that the open circuit voltage between any two adjacent opposite-polarity output working electrodes does not exceed 130 kV, which corresponds to the Russian legislation on weapons.

An additional feature is that the energy of high-voltage exposure at a load of 1 kOhm does not exceed 30 J per exposure time of 3 s, which corresponds to the Russian legislation on weapons.

The utility model is illustrated by drawings, which depict:

FIG. 1 - Schematic view of a metal detector with electroshock.

FIG. 2 - Type of metal detector with electroshock action with additional

electrodes.

FIG. 1. The metal-shock detector with electric shock includes a housing 1 and a handle 2 on which the controls and indications 3 are located. In another embodiment of the device, controls and indications may be located on the housing 1 in its rear part near the handle 2. There is a printed circuit board in the housing 4, on which the electronic circuit 5 of the metal detector is located, including a signal generation circuit, a signal reception and analysis circuit, and at least one detecting coil, made mainly in the form of a circuit an enameled wire laid around said printed circuit board (not shown in FIG. 1) and an electronic circuit 6 of an electroshock device (ESD) including a forming circuit and a high voltage transformer (not shown in FIG. 1). In the front part of the casing there are output bipolar working electrodes 7 and 8 of the ESH. In the proposed technical solution shown in FIG. 1, the output working electrode of one polarity is located on the longitudinal axis of the device, and two electrodes of opposite polarity are located symmetrically to the longitudinal axis of the device at the edges of the front of the housing. This arrangement of the electrodes provides the maximum distance between the bipolar electrodes for a given design of the device body, therefore, the maximum impact on the target, due to the maximum length of the current loop flowing through the body of the target. The presence of three electrodes (central - one polarity and lateral - another polarity) allows the user not to worry about how he brings the front of the device to the body of the offender, because in any case the offender will be provided with the necessary impact. In this case, there will be no dangerous effect on the target, since the electric current acting on the offender will flow only between one pair of heteropolar electrodes.

The high-voltage transformer of the ESA is located inside the detecting coil, and not outside it in a separately allocated space inside the device body, which significantly reduces the overall overall dimensions of the proposed device in comparison with the prototype. Such a solution may require the use of special insulation measures, for example, the use of high-voltage wires (not shown in Fig. 1) connecting the outputs of the high-voltage transformer with the output working electrodes 7 and 8, in order to ensure reliable electrical isolation at the intersection with the wires of the detection coil (for preventing the influence on the detecting coil of a high voltage discharge ESH).

In another embodiment, an electronic circuit 9 of an explosive detector and / or an electronic circuit 10 for remote communication can be additionally introduced into the device.

Explosive detector circuit 9 is designed to detect (in addition to metal objects) explosive and other hazardous substances. Such schemes are widely known in the art of creating hand-held and stationary metal detectors and are not considered in this material.

The remote communication circuit 10 is designed to transmit information and alarm signals, for example, via the Wi-Fi protocol, to the security control panel. In addition, signaling may be required to record the very fact of the operation of the device to inform a higher authority. Such schemes are widely known in the art of creating various devices that require remote communication at not too large distances, including the Internet of things, and are not considered in this material.

The main electronic circuits of the device are located on the printed circuit board 4. This circuit board can be marked out into at least two segments, mainly by creating a perforation of the circuit board, with the possibility of mechanically dividing the circuit board into segments along the perforation lines and optimal placement of segments in the housing 1 of the device along the longitudinal axis of the housing either transversely, or in a combination of longitudinal and transverse arrangement, or in another arrangement suitable for a given housing design, on the plane and / or in the volume inside Corps, and the necessary electrical connections between the circuit elements located in different of said segments may be made surround assembly. This configuration of the printed circuit board allows you to place circuit elements with minimizing the dimensions of the device.

Note that the sound indicator, which is part of the control and display unit 3, is made common to indicate the operation of the electronic circuit of the metal detector and the electronic circuit of the stun device, for example, in order to reduce the overall dimensions of the device. However, the type (amplitude, frequency and duration) of the metal detection sound signal and the type of sound signal associated with the activation of the ESD may differ.

All device circuits are provided with electric power from the power supply 11, made mainly in the form of a storage battery (battery), located mainly in the handle. A battery charger for recharging the battery (not shown in FIG. 1) can be placed both inside the handle and can be made in the form of an external device.

The device can be additionally equipped with a fuse unit 12, which makes it impossible for the offender to turn on the ESD when snatching the device from the user's hand. The node can be made, for example, in the form of checks — an electrical contact interacting with the power circuit of a device equipped with a strap that covers the user's wrist. If the device is snatched from the user's hand, the check (by holding the strap in the user's hand) is released from the corresponding contact socket, breaking the power supply circuit of the device. Other embodiments of the fuse assembly are also possible.

Mentioned output working electrodes 7 and 8 are made protruding above the front of the housing. In another embodiment, the output working electrodes are not protruding above the front of the housing. In a third embodiment of the device, part of said output working electrodes may be protruded above the front of the housing, and another part of said working electrodes not protruded above the front of the housing.

FIG. 2. The device, for example, if it has a transverse dimension of more than 80 mm, or in order to increase the accuracy of aiming, additional output working electrodes 13 can be introduced, located on the front surface of the housing closer to the longitudinal axis of the device, necessary, in particular, for restrictions on the maximum distance between bipolar electrodes, determined by Russian legislation for EShU (no more than 40 mm).

The device may also include additional output electrodes 14 and 15 located on the side surface of the case and serving as an “anti-snatcher”, providing a high-voltage discharge to the offender’s hand when he tries to grab the device from the user's hand. Said additional electrodes may be arranged on the surface of the housing parallel to the longitudinal axis of the housing, as shown in FIG. 2, or, for example, in the form of annular electrically conductive strips covering the surface of the housing perpendicular to its longitudinal axis or at some angle to it. The distance between these electrodes, as a rule, is determined by the width of the palm of the offender, so that a protective high-voltage discharge between the additional electrodes occurs only when trying to snatch the device. This is due to the physics of the appearance of a high-voltage discharge, which is determined by the distance between the bipolar electrodes and the magnitude of the open circuit voltage generated by the electronic ESH circuit between them. So, with an output open-circuit voltage of 120 kV, an electric arc discharge occurs when the electrodes are spaced no less than 60 mm apart, so it will occur not between the protective electrodes 14 and 15, but between the output working electrodes 7 and 8, the distance between which, as indicated earlier, for the permitted turnover of the device in the Russian Federation should not exceed 40 mm.

To increase the safety of the electronic components of the device in one of the variants of its implementation, the inclusion of the electronic circuit of the electronic control system and the circuit of the metal detector is not performed simultaneously, but alternately. Such a technical solution can, for example, be performed using a simple three-position switch (off - metal detector on - ESh on).

In accordance with the norms of Russian law, the energy of high-voltage exposure at a load of 1 kOhm should not exceed 30 J per exposure time of 3 s for electroshock devices intended for use as special means, armed with the bodies of the Ministry of Internal Affairs, the Russian Guard, etc. In the proposed device, these restrictions can be fulfilled due to the appropriate settings of the electronic circuit ESH.

In accordance with the norms of Russian law, the open circuit voltage between bipolar output working electrodes should not exceed 130 kV for electroshock devices intended for use as special tools, armed with the Ministry of Internal Affairs, the Russian Guard, etc. In the proposed device, these restrictions can be fulfilled due to the appropriate settings of the electronic circuit ESH, including high-voltage transformer.

Thus, the effectiveness of electroshock exposure increases due to the fact that the output working electrodes of the device are located in front of the housing with the organization of the maximum possible electric circuit in the target body (body of the offender). The three electrodes installed on the device are actually two pairs of electrodes, one of which is common to both pairs, thus increasing the aiming area, which also provides higher operational efficiency of the device compared to the prototype.

As a result, due to the introduction of the new design features mentioned above, the claimed utility model has high impact on offenders, low weight and dimensions, ease of use and application.

Technical implementation

The proposed product is implemented as a device with the following characteristics. Overall dimensions: 422 × 83 × 27 mm.

Weight: 0.45 kg.

ESD open circuit voltage: 120 kV.

The output power of the ESA at a load of 1 kΩ: 8.0 ... 10.0 watts.

Terms of Use:

- air temperature from minus 20 ° C to plus 50 ° C;

- relative air humidity up to 98% at a temperature of 25 ° C.

The product is powered by a removable rechargeable battery (battery).

The product in the electromagnetic metal detector mode has an alarm function about the presence of metal objects in the control zone - sound and light (red LED).

The above description characterizes the claimed utility model as industrially applicable and, in particular, as optimal for security and security services according to the criteria of “effectiveness of influence on offenders” and “universality and ease of use and application”.

Quoted sources

1. US patent application No. US 20130021192 A1 "Millimeter wave energy sensing wand and method".

2. US patent application No. US 20070063848 A1 "A Security device".

Claims (14)

1. A metal detector with an electroshock effect, consisting of a housing with an electronic circuit of a metal detector with at least one detecting coil and an audible indicator, an electronic circuit of an electroshock device with a high-voltage transformer and output working electrodes, characterized in that said output working electrodes are placed on the front of the housing, and the electrode of the same polarity, located near or on the Central longitudinal axis of the housing, is common for education ysokovoltnoy electrical circuit for the at least two electrodes of the other polarity disposed near the edges of the front portion of the housing, a high voltage transformer electroshock device is disposed within at least one of the detecting coil, and audible indicator configured to indicate the general operation of the electronic circuit and the detector circuitry electroshock device. 2. The metal detector according to claim 1, characterized in that said output electrodes of equal polarity are located symmetrically with respect to the longitudinal axis of said housing. 3. The metal detector according to claim 1, characterized in that it is additionally equipped with a scheme for detecting explosives. 4. The metal detector according to claim 1, characterized in that it is additionally equipped with a remote communication circuit for transmitting information and alarm signals, mainly via the Wi-Fi protocol. 5. The metal detector according to claim 1, characterized in that said electronic circuits of the metal detector and the stun device are made on a single printed circuit board, which is marked out into at least two segments, mainly by creating perforation of the board, with the possibility of mechanical separation of the board into segments along the perforation lines and optimal placement of segments in the device’s body along the longitudinal axis of the case, either across it, or in a combination of longitudinal and transverse locations, or in another suitable for this truktsii body arrangement, on the plane and / or in the volume within said housing, and necessary electrical connections between the circuit elements located on different said segments surround assembly made. 6. The metal detector according to claim 1, characterized in that said electronic circuits of the metal detector and the stun device can only be triggered alternately. 7. The metal detector according to claim 1, characterized in that it is equipped with at least one additional output working electrode located on the side surface of the housing connected to the secondary winding of the aforementioned high-voltage transformer. 8. The metal detector according to claim 1, characterized in that it is additionally equipped with a safety unit - a check, making it impossible to turn on the said electronic circuit of the electroshock device when it is snatched from the user's hand. 9. The metal detector according to claim 1, characterized in that the said output working electrodes are protruding above the front of the housing. 10. The metal detector according to claim 1, characterized in that the said output working electrodes are made not protruding above the front of the housing. 11. The metal detector according to claim 1, characterized in that a part of said output working electrodes is made protruding above the front of the housing, and another part of said working electrodes is made not protruding above the front of the housing. 12. The metal detector according to claim 1, characterized in that the distance between any two adjacent bipolar output working electrodes does not exceed 40 mm. 13. The metal detector according to claim 1, characterized in that the open circuit voltage between any two adjacent bipolar output working electrodes does not exceed 130 kV. 14. The metal detector according to claim 1, characterized in that the energy of the high-voltage action at a load of 1 kΩ does not exceed 30 J during the exposure time of 3 s.

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