CN113689975B - Quick-charging steel wire cable for commodity burglary prevention - Google Patents
Quick-charging steel wire cable for commodity burglary prevention Download PDFInfo
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- CN113689975B CN113689975B CN202010421456.0A CN202010421456A CN113689975B CN 113689975 B CN113689975 B CN 113689975B CN 202010421456 A CN202010421456 A CN 202010421456A CN 113689975 B CN113689975 B CN 113689975B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention provides a quick-charging steel wire cable for commodity burglary prevention, which comprises an inner core layer, an isolation layer, a steel wire layer and an outer layer which are sequentially arranged from inside to outside; the inner core layer comprises at least one wire; the inner core layer is one of the conductive bodies of the present invention, and a common wire, such as the digital product charging anti-theft cable mentioned in the background art, at least needs two inner cores which are electrically isolated from each other to meet the requirement of forming a positive-negative electric path so as to form an electric circuit. Compared with the traditional copper wire and the scheme of wrapping the steel wire outside the conductive wire core in the background art, the quick-filling steel wire cable disclosed by the invention has the advantages that the cable has more flexibility and the service life of the cable is prolonged under the condition of achieving the same electrical performance.
Description
Technical Field
The invention relates to the field of commodity theft prevention, in particular to a cable which is used for playing a role in signal and/or electric transmission in a commodity theft prevention device in the field of commodity theft prevention.
Background
With the development of commodity experience type services, commodity display and experience functions are more open to purchasers or potential purchasers, and meanwhile, the requirement for commodity theft prevention is also continuously improved. How to meet various demands of experimenters as much as possible, show all functions and the best and convenient side of goods to the experimenters as much as possible, and on the other hand, prevent the possible theft of the ill-centered person, reduce and even stop the possible hidden trouble of being stolen of the goods in the showing and experiencing process as much as possible, and under such industrial environment, the goods anti-theft industry is generated.
Common commodity burglary prevention in the prior art adopts an anti-theft device which is contacted with or connected with the commodity, and when the commodity is possibly at a risk of being stolen, the anti-theft device can send out an alarm or send out an alarm instruction to an alarm so as to prompt staff in a display place. In general, the commodity anti-theft device detects whether a commodity is in a safe state through a sensor, if the sensor detects an unsafe state, a signal can be sent to an alarm device to trigger an alarm, in this case, at least one cable among the commodity, the sensor and the alarm device is connected, generally, the cable can be used for transmitting the signal, in some situations with different requirements, such as the commodity being an electronic product, the cable can also be used for supplying power to the commodity, and in some situations, the cable can also be used for supplying power to the commodity and detecting safety of the commodity.
In practical application, regarding commodity anti-theft, because of different conditions, the demands on commodity anti-theft security level are also different, for example, some commodity anti-theft devices often only require a sensor to separate from commodities, trigger a monitoring device to alarm, so that theft can be prevented in time and salesperson can be reminded of knowing, in some cases, the demands of the commodity anti-theft devices cannot be met by simply relying on an electronic alarm commodity anti-theft scheme, commodity experience is considered and commodity anti-theft security level is improved, for example, the electronic anti-theft device also needs to have certain tensile and shearing resistance to deal with possible theft. In this case, the simplest and most efficient way is: materials such as steel wires or metal hoses are wrapped on the basis of the traditional sensor cable for connecting commodities, so that the anti-theft alarm charging is achieved, and meanwhile, the anti-theft alarm charging has good tensile and shearing resistance, and is a general scheme for the situation in the industry at present.
This solution, while meeting the requirements, also brings some drawbacks, such as: for electronic devices, in order to achieve longer endurance and faster processing speed, a powerful power supply guarantee needs to be provided externally in the process of exhibiting these functions, in other words, an anti-theft device corresponding to these commodities needs to provide a larger charging current to meet the requirement of quick charging, so as to ensure that power exhaustion is avoided in the process of exhibiting, and the user cannot experience the functions or characteristics of the anti-theft device. The anti-theft equipment wire is required to have lower impedance and higher conductive efficiency, so that the core wire is thickened, the peripheral steel wire or the metal hose is wrapped, the whole cable is very thick, the display attractiveness and the environment are influenced, the bending radius of the whole wire is overlarge and is not soft enough due to the rigidity of the steel wire or the metal hose, and the wire can be only made into a linear or larger-radius spring mode, so that the commodity taking or playing experience of a customer is influenced.
Some improvements of the cable in the prior art can expand the function of the cable, for example, chinese patent CN207097518U discloses a stretch-resistant fireproof alarm cable, a fireproof layer and a temperature control cable are designed in the cable, the fireproof alarm sensitivity of the cable is improved in this way, however, the principle and the demand of the fireproof alarm are different from those of the anti-theft alarm, and the fireproof alarm does not need the functions of electric conduction and charging; as another example, chinese patent CN207558457U discloses a wire rope cable, which comprises an outer layer wire rope, an outer sheath, a braided reinforcing layer, an inner sheath, an isolation layer, a filling, an insulating layer, a wire and a reinforcing rubber filling, wherein the reinforcing rubber filling is positioned at the center of the wire rope cable, the insulating layer wraps a plurality of wire cores formed by the wire to surround the rubber filling, the filler is filled around the wire cores, and the isolation layer is overlapped and wrapped on the wire cores and the filling outer layer; in addition, chinese patent CN106057317B is a popular method for charging anti-theft cable for digital products in early years, and reduces the heating phenomenon in the process of transmitting current through dupont fiber yarn and tin-plated copper wire, and protects the wire through a protective sleeve and a bead ring layer, but in practical use, the cable is broken by the tin-plated copper wire part of the inner core after being bent for many times, which results in the reduction of the conductive section corresponding to the broken position of the cable, so that the risk of heating is difficult to avoid when the current is too large.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a quick-charging steel wire cable for commodity theft prevention, which can originally overcome the cable use problem in the theft prevention field.
A quick-charging steel wire cable for commodity burglary prevention,
comprises an inner core layer, an isolating layer, a steel wire layer and an outer layer which are sequentially arranged from inside to outside;
the inner core layer comprises at least one wire; the inner core layer is one of the conductive bodies of the present invention, and a common wire, such as the digital product charging anti-theft cable mentioned in the background art, at least needs two inner cores which are electrically isolated from each other to meet the requirement of forming a positive-negative electric path so as to form an electric circuit.
The isolation layer is configured to block the inner core layer from the steel wire layer; the isolation layer is also an insulating layer, and the skin abrasion of the lead wire of the inner core layer in the current transmission process can be avoided through the blocking of the isolation layer, so that the short circuit caused by the contact with the steel wire layer is prevented.
The steel wire layer comprises a plurality of steel wires, the steel wire layer not only plays a role of protecting the inner core layer, but also can serve as another conductive main body corresponding to the inner core layer, generally, the conductivity of the steel wire is inferior to that of a copper wire, but the steel wire has certain elasticity and elasticity, the strength of the steel wire is far higher than that of the copper wire, compared with a softer copper wire, the steel wire can obviously improve the shearing resistance and tensile resistance of a cable, but the steel wire needs to be frequently picked up by a user and experiences and changes various directions as the cable, so that the steel wire needs to have certain flexibility, the diameter of the steel wire can be within 0.2mm in order to solve the problem, and the flexibility of the steel wire can be improved under the condition of keeping the shearing resistance and tensile resistance of the steel wire.
The steel wire comprises an insulating layer; when the steel wire is bent, the positions of metal molecules therein are changed, the bent inner metal molecules are compressed and gathered, and the bent outer metal molecules form uneven heating due to uneven distribution and different states of the metal molecules at the bending place if current passes through the steel wire.
The outer layer is configured to wrap around the steel wire layer, so that the steel wire cable is prevented from leaking out; the outer layer is used for protecting the steel wire and also used for protecting the whole cable, and wraps all the conductive structures in the cable.
Further, the steel wire comprises a conductive layer. In order to improve the conductivity of the steel wire, so that the steel wire is matched with the conductivity of the inner core layer, the steel wire can also be wrapped with the conductive layer, and the conductive layer can be combined to the outer surface of the steel wire to form an integrated wire with the steel wire.
Further, the conductive layer is located between the steel wire and the insulating layer.
Further, the conductive layer comprises one or more of tin, aluminum, copper, silver, gold, and the like.
Through the structure, in the cable, the conductive layer and the steel wire layer are combined through the form of X-coated steel (X=conductive material), so that the conductivity of the steel wire is effectively improved while the flexibility and the strength of the steel wire are maintained.
Further, the steel wire is configured to be distributed around the periphery of the isolation layer.
Further, the inner conductor wire includes a plurality of electrically isolated conductive core wires from each other.
Further, the inner core layer comprises a plurality of strands of reinforcing filaments.
Further, the conductive core wire is rewound with the reinforcing wire. The conductive core wire and the reinforcing wire are combined together by adopting a rewinding process, so that the bending resistance of the lead can be effectively improved.
Further, the wire layer is configured to be able to be used for transmitting signals and/or transmitting power.
Further, the cable can be wound into a spring. The cable structure of the invention can lead the cable to have good elasticity and flexibility while having good conductive performance, so the cable of the invention can be wound into a spring wire for use.
The beneficial effects of the invention are as follows:
(1) Compared with the traditional copper wire and the scheme of wrapping the steel wire with the conductive wire core in the background art, the quick-charging steel wire cable can reduce the bending radius of the cable by at least 20% under the condition of achieving the same electrical performance, has flexibility, and correspondingly prolongs the service life of the cable.
(2) According to the invention, the steel wire layer is used as the conducting layer through the design of the inner core layer and the outer wrapping steel wire layer, so that the inner core layer comprises at least one wire, one path of current (such as current +) can be transmitted, the steel wire can be used as the other wire, and the other path of current (such as current (-for)) can be transmitted, and the inner core layer which originally at least needs to comprise two wires (comprising the insulating layer) can be reduced to one wire through the current transmission mode, so that the diameter of the whole cable is reduced, and the cable can be made finer under the same performance.
(3) The invention adopts the steel wire as one path of wire, in order to solve the problem that the steel wire has residual rigidity and insufficient flexibility, the invention reforms the steel wire into the steel wire with smaller radius, and the steel wire can be more flexible as a whole under the condition of achieving the same shearing resistance and tensile property by a multi-strand winding mode, and can adapt to bending of various shapes, and is manufactured into the spring wire, winding and other using modes.
(4) After the steel wire is made into a thin wire, the cable can be continuously stretched, twisted, bent and the like in the commodity antitheft field during commodity experience, under the circumstance that the cable is frequently broken at a position with more bending, once the cable is broken at a part of the cable core, the cable is heated due to the fact that the radius of the conductive section is suddenly reduced at a bending point when high current passes through the cable core, and even fire hazards can exist in serious cases.
(5) According to the invention, the lower-impedance dielectric layers, such as tin, aluminum, gold and the like, are wrapped on the outer layer of the steel wire, and when alternating current or alternating electromagnetic fields exist in the conductor, the current distribution in the conductor is uneven, the current is concentrated on the skin part of the surface of the conductor, namely a thin layer on the surface of the conductor, so-called current skin effect is formed, in the current skin effect, the closer to the surface of the conductor, the higher the current density is, and the lower the current in the conductor is, namely, when the cable passes through alternating current (such as commodity power supply), the current in the steel wire is concentrated on the surface of the steel wire due to the current skin effect, namely, the wrapped lower-impedance dielectric layer is transmitted, so that the current transmission efficiency on the surface of the steel wire is improved, the conductivity of the steel wire is obviously improved, and the rapid charging of the steel wire is realized. In addition, the electric conductivity of the steel wires is improved, and the number of the steel wires can be further reduced under the condition of meeting the rated current transmission requirement, so that the overall diameter of the cable is further reduced.
Drawings
Fig. 1 is a schematic view of a steel wire cable of example 1 of the present invention.
Fig. 2 is a cross-sectional view of a steel wire cable of example 1 of the present invention.
Fig. 3 is an enlarged view of the circled portion a in fig. 2.
Fig. 4 is an enlarged view of the circled portion B in fig. 2.
Fig. 5 is a schematic view of a steel wire cable of example 2 of the present invention.
Fig. 6 is a sectional view of a steel wire cable of example 2 of the present invention.
Fig. 7 is a schematic view of a steel wire cable of example 3 of the present invention.
Fig. 8 is a sectional view of a steel wire cable of example 3 of the present invention.
Fig. 9 is an application scenario diagram of the present invention.
Fig. 10 is a schematic view of the combination of fig. 9 with a commodity.
Fig. 11 is another application scenario diagram of the present invention.
Fig. 12 is a schematic view of the combination of fig. 11 with a commodity.
Detailed Description
In order to enable those skilled in the art to better understand the present invention, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention.
Commodity anti-theft device
The invention relates to commodity burglary prevention, in particular to commodities which need to be functionally displayed to a purchaser or a potential purchaser, such as electronic products, certain functions of the commodities need to be known to a user under the condition of use, the commodities usually have certain man-machine interactive interfaces, a displayed person can contact and exemplarily or illustratively use all or part of functions of the commodities in a certain range, so that performance of the commodities is known, the commodities with functional display requirements are sometimes called commodities with experience requirements in the industry, namely the displayed person can operate and experience the displayed commodities within the limited conditions and range, the experients can be directly contacted by the experients, the experients can use the commodities within the limited range of a seller or commodity owner, such as a sales place, but the commodities cannot be taken away from the experience place, and due to the ownership of the displayed commodities or the fact that the displayed commodity belongs to the seller or commodity owner, burglary prevention measures need to be carried out on the commodities, the experients are not limited to the experients, the use of the experients is not limited, the experients can be taken from the sales place, and the concept of the experients need to be taken into consideration as well as possible, and the burglary prevention measures do not need to be taken into consideration in the concept of the situation.
Secure/non-secure state
The invention refers to a safe or unsafe state, in particular to a state in which the displayed commodity is in, in particular to a state in which the relationship between the displayed commodity and the anti-theft device is displayed under the condition that the anti-theft device is arranged, in general, the commodity is in a state which is considered not to be stolen, namely a safe state, a state which is considered to be possibly stolen, namely an unsafe state, whether anti-theft measures are good, whether the displayed commodity is under the protection of the anti-theft measures, if so, the displayed commodity is considered to be in a safe state, if not, the displayed commodity is considered to be in an unsafe state, namely the safe or unsafe state, compared with the anti-theft measures, for example, the displayed commodity is always kept connected with a charging interface, then a sensor detects whether the charging interface is always connected with the commodity, if so, the displayed commodity is in the safe state, and if the charging interface is disconnected, the displayed commodity is in the unsafe state; or if the antitheft measure is that the commodity is always kept in a charged state, the sensor detects whether the charging cable of the commodity is kept in power transmission, if so, the commodity is in a safe state, and if not, the commodity is in an unsafe state; or if the antitheft measure is that the commodity is clamped by the clamping device, the sensor detects whether the commodity is in the clamping space or whether the commodity is in contact with or mounted on the clamping device, if so, the commodity is in a safe state, and if not, the commodity is in an unsafe state; etc.
Cable with improved heat dissipation
The cable plays a very important role in the commodity anti-theft field, the cable not only plays a role of physical connection and/or power transmission, in some cases, data transmission (including weak electricity) can be provided in the cable, power and data connection can be provided for two sides of the cable connection at the same time, one side can provide electric energy or transmit data signals to the other side, or both sides can have mutual transmission of electric energy and data signals, in some cases, a power transmission line in the cable can be used as an induction loop, namely, a judging factor for detecting whether the cable is on or off, for example, when the cable has power transmission, the induction loop can be considered to be smooth, the cable is in a normal connection state, at the moment, if the cable is connected with the commodity and the anti-theft host, the commodity can be considered to be in a safe state, or the induction loop can be considered to be in a normal connection state when the cable has signal transmission, at the moment, if the cable is connected with the commodity and the anti-theft host, and in some cases, the cable can play a role of a part of a sensor.
Sensor for detecting a position of a body
The sensor is usually used for sensing a certain signal or sensing a certain state, and is special for commodity security, namely the commodity anti-theft, and the sensor can be a sensing circuit, a device with a sensing element or an element with a sensing function, which is integrated on a connector, and has the function of sensing a signal and judging whether the displayed commodity is in a secure state or not through the signal. In the present invention, the sensor may be attached to the article. In fact, in the field of commodity theft prevention, a sensor is a relatively widely used prior art, and in general, an element capable of sending a security signal whether a commodity is in a secure or non-secure state may be called a sensor.
Unauthorized removal
In the present invention, unauthorized is relative to authorized, since in the field of merchandise theft prevention, there are two modes of locking and unlocking, during the merchandise being displayed, the merchandise should be in a locked state, in this state, the merchandise will not be stolen, but besides being stolen, the merchandise may be actively removed from the theft prevention device by a merchant, for example, when a certain merchandise is already marketed and sold no longer, the corresponding merchandise will be removed, which involves the replacement of the merchandise, or when the merchandise has quality problems, the merchandise may need to be removed from the theft prevention device, and when the displayed merchandise is replaced or maintained, the merchandise will be removed from the theft prevention device by a staff (merchant) with authority, which is referred to as authorized removal, and otherwise considered unauthorized removal.
Safety signal
The security signal is also a relatively well known concept in the field of commodity theft prevention, when the commodity is in a non-security state, certain components in the commodity theft prevention system send out the security signal, the security signal can be an induction signal or an electrical signal or a digital signal, the signal can be triggered by various modes/events in the prior art, for example, the event can be a physical connection disconnection or a circuit disconnection, the triggering mode can be the sensing component sensing, the induction signal is transmitted to corresponding equipment, the corresponding equipment can send out the security signal according to the most basic logic judgment (yes/no) after receiving the induction signal, in the field of commodity theft prevention, the common triggering mode can be disconnection, disconnection of charging connection, disconnection from a certain installed component or damage in a certain set mode, the generation of the security signal can be triggered, and the generation of the security signal is conventional in the field.
Monitoring device
The monitoring device in the invention can comprise traditional commodity anti-theft devices, such as an anti-theft device, an anti-theft host machine and the like, and can also comprise other devices related to commodity safety, such as the sensor, the monitoring device can be used for monitoring the devices in the commodity safety system, such as the sensor, the monitoring device can send out a safety signal, other devices can possibly receive the safety signal and execute alarm operation according to the safety signal, and the executed device can be an alarm or a buzzer.
Alarm/warning device
In the field of commodity anti-theft, an alarm is also a common anti-theft device, and is mainly used for executing alarm operation according to safety signals sent by a monitoring device, a sensor, a cable and the like, and a typical example of an alarm device is an alarm for sending an alarm prompt tone to prompt staff in a sales place, wherein commodities may be in a safe or unsafe state. Generally, the alarm function of the alarm device can be called as an alarm signal, for example, an alarm prompt tone, and sometimes also comprises an optical signal, which is called as an audible and visual alarm.
Description of the preferred embodiments
Example 1, see FIGS. 1-4, 9-12.
As shown in fig. 1, the invention provides a quick-charging steel wire cable for commodity burglary prevention, which comprises an inner core layer 1, an isolation layer 2, a steel wire layer 3 and an outer layer 4 which are sequentially arranged from inside to outside, wherein the outer layer 4 is an outer wrapping layer of the cable and is used for wrapping the whole cable, preventing the inner wire from being exposed, protecting the whole cable, and the outer layer can be made of common PVC/TPU/TPEE and other materials and is coated after the other materials of the cable are manufactured.
As shown in fig. 4, the inner core layer 1 includes at least one wire 11, the wire 11 may be made of a conventional wire material, for example, copper wires, in order to enhance the strength of the inner core layer 1, the reinforcing wire 12 may be selected from conventional wire and cable reinforcing wires, the wire 11 and the reinforcing wire 12 are repeatedly wound to form a conductor portion of the inner core layer 1, for the purpose of the present invention, a conductor formed by a rewinding process of one wire and one reinforcing wire may satisfy the intention of the present invention, in practical use, the number of the wires 11 and the reinforcing wire 12 may be determined according to the actual excess electricity requirement, for example, in this embodiment, the wire 11 includes 7 wires, the reinforcing wire 12 includes 3 wires, wherein the wire 11 includes a central core located in the middle and other wires 11 repeatedly wound around the central core, and one reinforcing wire 12 is interposed between every two wires 11 in the repeatedly wound wires 11, so as to enhance the bending resistance of the conventional wire. In order to prevent the inner core layer 1 from being broken by repeatedly bending and pulling easily formed parts in use, an enameled wire process is adopted to cover the wire core insulating layer 13 on each wire 11, so that each wire 11 can be insulated independently, when any one of the wires breaks, local impedance is not formed, local heating caused by the passing of large current in quick charging is avoided, the inner core of the wire is prevented from being burnt out, and an inner core shell 15 serving as a surface layer of the inner core wire is arranged on the outer side of the inner core layer 1.
As shown in fig. 1-2, the isolation layer 2 is disposed between the inner core layer 1 and the steel wire layer 3, and is used for blocking the inner core layer 1 and the steel wire layer 3, so as to avoid short circuit between the inner core layer 1 and the steel wire layer 3 caused by abrasion of the surface of the inner core layer in the current transmission process.
As shown in fig. 3, the steel wire layer 3 includes a plurality of steel wires 31, at least one conductive layer 32 is wrapped outside the steel wires 31, the conductive layer 32 can be made of one or two or more of tin, aluminum, copper, silver and gold materials, the conductive layer 32 can be made into an integrated conductive main body with the steel wires 31 through electroplating or cladding technology, through the design, alternating current passing through a cable during quick charging can be utilized to form a current skin effect on the steel wires 31, so that most of current can pass through the conductive layer 32, the conductive performance of the steel wires 31 is greatly improved, and the quick charging is realized to meet the power supply requirement of an electronic product in display. In addition, the whole periphery of the steel wire 31 is further coated with an insulating layer 33, and the outer side of each steel wire is coated with the insulating layer 33, so that each steel wire 31 can be insulated independently, and therefore when any one of the steel wires breaks, local impedance is not formed, local heating caused by the passage of large current in quick charging is avoided, and the steel wire layer 3 is prevented from being burnt out.
Preferably, the wire layer 3 can be used for transmitting both power and signals, and is used as a safety cable having a sensor function.
As shown in fig. 1-2, the steel wire 31 surrounds and is distributed on the periphery of the isolation layer 2, and two electrical paths electrically isolated from each other, namely the steel wire layer 3 and the inner core layer 1, are formed through the isolation layer 2, so that the cable of the present invention can form a conductive loop when energized.
As shown in fig. 9 to 10, the cable of the present invention may be used for a commodity anti-theft device as shown in fig. 9 to 10, which includes a monitoring device 100, a winder 101 is provided in the monitoring device 100, a first cable 102 made of the cable structure of the present invention may be wound in the winder 101 and extended from the upper portion of the monitoring device 100 to be connected to a sensor 200, a second cable 201 made of the cable structure of the present invention is provided on the sensor 200, the second cable 201 may be connected to a charging interface of a commodity 300 through a connector 400, and the monitoring device 100 of the present invention may be connected to an external power source or an external alarm device through a third cable 103 made of the cable structure of the present invention, and in the application scenario as shown in fig. 9 to 10, the first cable, the second cable and the third cable are all capable of power transmission and signal transmission, the commodity to which the first cable, the second cable and the third cable are connected, the monitoring device and the sensor form an alarm loop, wherein any cable is destroyed or the alarm device is externally connected to the monitoring device. In addition, because of the strength and toughness of the cable, the cable has long service life and is not easy to damage.
As shown in fig. 11-12, the cable of the present invention may be used in the commodity anti-theft device shown in fig. 11-12, the monitoring device 100 is connected to the sensor 200 through the external spring cable 104, the sensor 200 may be a combination of a clip sensor and a contact sensor, other application modes are the same as those shown in fig. 9-10, in the application scenario shown in fig. 11-12, the spring cable 104 may also be manufactured by the cable structure of the present invention, and then further wound to form a spring wire, which also has good conductive and signal transmission effects when used as a spring wire due to flexibility and shearing resistance of the cable, and has a long service life.
Example 2, see fig. 5-6.
In this embodiment, as shown in the figure, the outer skin of the isolation layer 2 and the inner core layer 1 are combined into one layer, so that the layered structure of the cable is further simplified, and the diameter of the cable can be further reduced.
Other embodiments of this example are the same as example 1.
Example 3, see fig. 7-8.
In the present embodiment, as shown in the figure, in the case where it is required to increase the current throughput and a slightly larger cable diameter can be allowed, the inner core layer 1 may contain a plurality of wires, for example, three wires in the present embodiment, thereby increasing the electric flux of the cable. Each wire contains a respective inner core layer shell 15, so that mutual insulation is formed between the wires, and the potential safety hazard problem caused by wire core fracture is further prevented.
Other embodiments of this example are the same as example 1.
Claims (7)
1. A quick-charging steel wire cable for commodity burglary prevention is characterized by comprising,
the inner core layer, the isolation layer, the steel wire layer and the outer layer are sequentially arranged from inside to outside;
the inner core layer comprises at least one wire;
the isolation layer is configured to be capable of being used for blocking the inner core layer and the steel wire layer;
the steel wire layer comprises a plurality of strands of steel wires, and the steel wire comprises an insulating layer;
the outer layer is configured to wrap around the steel wire layer, so that the steel wire cable is prevented from leaking out;
the steel wire comprises a conductive layer;
the conductive layer is positioned between the steel wire and the insulating layer;
the conductive layer comprises one or more of tin, aluminum, copper, silver, gold materials.
2. A quick charge wire cable for theft protection for goods according to claim 1, wherein the wire is configured to be distributed around the periphery of the insulation layer.
3. A quick charge wire cable for theft protection for goods according to claim 1 wherein the inner core wire comprises a plurality of electrically isolated conductive core wires.
4. A quick charge wire cable for theft protection for goods according to claim 3 wherein the inner core layer comprises a plurality of strands of reinforcing filaments.
5. The quick charge wire cable for theft protection for goods of claim 4 wherein said conductive core wire is rewound with a reinforcing wire.
6. A quick charge wire cable for theft protection for goods according to claim 1, wherein the wire layer is configured to be usable for transmitting signals and/or transmitting power.
7. A quick charge wire cable for theft protection for goods according to claim 1, wherein the cable can be wound into a spring.
Priority Applications (1)
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CN2665877Y (en) * | 2003-12-15 | 2004-12-22 | 天津安琪尔集团有限公司 | Low smoke, low halogen and flame retardant steel wire armoured light rail signal cable capable of preventing mouse and ants |
JP2006283259A (en) * | 2005-04-05 | 2006-10-19 | Chuo Spring Co Ltd | Wire rope and control cable |
CN106057310A (en) * | 2016-07-29 | 2016-10-26 | 山东希尔电缆有限公司 | WMF series sealed wear-resisting load-bearing detection cable |
CN206058972U (en) * | 2016-08-31 | 2017-03-29 | 思创医惠科技股份有限公司 | Burglar alarm charging wire |
CN207097507U (en) * | 2017-06-16 | 2018-03-13 | 深圳市东峰盛科技有限公司 | The superpower theft-proof alarm cable of one kind charging |
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Patent Citations (5)
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CN2665877Y (en) * | 2003-12-15 | 2004-12-22 | 天津安琪尔集团有限公司 | Low smoke, low halogen and flame retardant steel wire armoured light rail signal cable capable of preventing mouse and ants |
JP2006283259A (en) * | 2005-04-05 | 2006-10-19 | Chuo Spring Co Ltd | Wire rope and control cable |
CN106057310A (en) * | 2016-07-29 | 2016-10-26 | 山东希尔电缆有限公司 | WMF series sealed wear-resisting load-bearing detection cable |
CN206058972U (en) * | 2016-08-31 | 2017-03-29 | 思创医惠科技股份有限公司 | Burglar alarm charging wire |
CN207097507U (en) * | 2017-06-16 | 2018-03-13 | 深圳市东峰盛科技有限公司 | The superpower theft-proof alarm cable of one kind charging |
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