CN210606775U

CN210606775U - Low-noise core wire

Info

Publication number: CN210606775U
Application number: CN201921303392.3U
Authority: CN
Inventors: 仇斌; 张卫东
Original assignee: Shenzhen Strontium Communication Connector Co Ltd
Current assignee: Shenzhen Strontium Communication Connector Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-22
Anticipated expiration: 2029-08-09

Abstract

The utility model belongs to the technical field of the medical treatment cable technique and specifically relates to a low noise heart electric wire. The cable comprises a main conductor wire core, a plurality of auxiliary conductor wire cores which are uniformly distributed around the main conductor wire core, a shielding layer which integrates the main conductor wire core and the auxiliary conductor wire cores in a wrapping mode, an outer protective layer which is wrapped on the periphery of the shielding layer and a third insulating layer which is formed in a structural gap between the main conductor wire core and the shielding layer, wherein the main conductor wire core comprises a main conductor and a first conductive adhesive layer which sequentially wraps the periphery of the main conductor layer, a first insulating layer and a second conductive adhesive layer, the auxiliary conductor wire core comprises an auxiliary conductor and a third conductive adhesive layer which sequentially wraps the periphery of the auxiliary conductor layer, a second insulating layer and a fourth conductive adhesive layer. The utility model discloses can effectively reduce the accumulation of electric charge in the wire rod, create the condition for the noise that reduces the wire rod and improve signal transmission's accuracy.

Description

Low-noise core wire

Technical Field

The utility model belongs to the technical field of the medical treatment cable technique and specifically relates to a low noise heart electric wire.

Background

As is known, an electrocardiograph cable is a lead cable used in cooperation with medical equipment such as an electrocardiograph monitor and the like, and mainly plays a role in real transmission of human body sign data signals. The existing core wire is easy to generate charge separation when a conductor in the wire is contacted with an insulating medium, so that the problem that the noise value is larger often exists, the accuracy of the core wire for transmitting corresponding data signals can be influenced if the noise value is larger, and finally the test result of the medical equipment is deviated.

Therefore, there is a need to provide an improved scheme for the existing core wire to effectively reduce the noise value of the core wire, so as to meet the actual use requirement.

SUMMERY OF THE UTILITY MODEL

To the deficiencies of the prior art, an object of the utility model is to provide a low noise core electric wire.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a low-noise core wire comprises an outer cover protection layer, a shielding layer, a main conductor wire core and a plurality of auxiliary conductor wire cores, wherein the main conductor wire core comprises a main conductor, a first conductive adhesive layer, a first insulating layer and a second conductive adhesive layer which are sequentially coated on the periphery of the main conductor layer by layer, and the auxiliary conductor wire cores comprise auxiliary conductors, and a third conductive adhesive layer, a second insulating layer and a fourth conductive adhesive layer which are sequentially coated on the periphery of the auxiliary conductors layer by layer;

the auxiliary conductor wire cores surround the main conductor wire core, the periphery of the main conductor wire core is uniformly distributed, the main conductor wire core and the auxiliary conductor wire core are wrapped into a whole by the shielding layer, the outer protective layer covers the periphery of the shielding layer, and a third insulating layer is formed in a structural gap among the auxiliary conductor wire core, the main conductor wire core and the shielding layer;

at least the peripheral surfaces of the first conductive adhesive layer and the third conductive adhesive layer are smooth surfaces.

Preferably, the main conductor is a tinned copper wire formed by lapping a synthetic fiber layer, and the auxiliary conductor is a tinned copper wire.

Preferably, the first insulating layer, the second insulating layer and the third insulating layer are all HDPE material layers.

Preferably, the shielding layer is a tin-plated copper material layer.

Preferably, the outer protective layer is a TPU material layer.

Preferably, the diameter of the primary conductor is greater than the diameter of the secondary conductor.

Due to the adoption of the scheme, the utility model utilizes the additionally arranged conductive adhesive layer to be combined with the conductor to jointly form the conductor with a smooth surface, and achieves the purpose of reducing the noise of the cable by reducing the generation of electric charges, thereby creating conditions for reducing the noise of the wire rod and improving the accuracy of signal transmission; meanwhile, the anti-interference capability of the wire rod to external signals and noise can be enhanced by utilizing the outer protective layer and the shielding layer. The noise-reducing device has the advantages of simple structure, low noise, and strong practical value and market popularization value.

Drawings

Fig. 1 is a schematic view of a radial cross-section structure of an embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1, the low-noise core wire provided in this embodiment includes an outer protective layer 1, a shielding layer 2, a main conductor core and a plurality of auxiliary conductor cores, where the main conductor core includes a main conductor 3, and a first conductive adhesive layer 4, a first insulating layer 5 and a second conductive adhesive layer 6 which are sequentially coated on the outer periphery of the main conductor 3 layer by layer, and each auxiliary conductor core includes an auxiliary conductor 7, and a third conductive adhesive layer 8, a second insulating layer 9 and a fourth conductive adhesive layer 10 which are sequentially coated on the outer periphery of the auxiliary conductor 7 layer by layer; a plurality of auxiliary conductor wire cores surround the main conductor wire core, the periphery of the main conductor wire core is uniformly distributed, the main conductor wire core and the auxiliary conductor wire core are wrapped into a whole by the shielding layer 2, the periphery of the shielding layer 2 is coated by the protective layer 1, and a third insulating layer 11 is formed in a structural gap among the auxiliary conductor wire core, the main conductor wire core and the shielding layer 2; at least the peripheral surfaces of the first conductive adhesive layer 4 and the third conductive adhesive layer 8 are ensured to be smooth surfaces. In view of the fact that the surface of a conductor of a traditional core wire is not smooth after the conductor is stranded, and the capacitance of each section of the conductor is extremely unstable after the conductor is directly coated with an insulating layer, once the conductor is impacted by external force, the capacitance of a cable is inevitably changed, and in addition, the capacitance caused by the fact that the surface of the conductor is not smooth is unstable, charges are easily accumulated on the insulating layer of the conductor, and therefore the noise of the cable is overlarge; therefore, the present embodiment utilizes the added conductive adhesive layer to combine with the conductors (i.e. the main conductor 3 and the auxiliary conductor 7) to form a conductor with a smooth surface, and achieves the purpose of reducing the noise of the cable by reducing the generation of electric charges, thereby creating conditions for reducing the noise of the wire and improving the accuracy of signal transmission; meanwhile, the anti-interference capability of the wire rod to external signals and noise can be enhanced by utilizing the outer protective layer 1 and the shielding layer 2.

Preferably, the main conductor 3 of the present embodiment is a tin-plated copper wire wrapped with a synthetic fiber layer, and the sub-conductor 7 is a tin-plated copper wire. To enhance the signal transmission capability of the conductors themselves.

Preferably, the first insulating layer 5, the second insulating layer 9 and the third insulating layer 11 of the present embodiment are all HDPE material layers. So as to enhance the performance of the whole wire by utilizing the high wear resistance, high electrical insulation, high toughness and the like of the high-density polyethylene.

Preferably, the shielding layer 2 of the present embodiment is a tin-plated copper material layer. And the outer protective layer 1 is preferably a layer of TPU material.

In addition, to ensure the signal receiving effect, the main conductor 3 of the present embodiment can be used as a signal receiving core, and the diameter thereof is preferably larger than that of the sub-conductor 7.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A low noise core wire, its characterized in that: the cable comprises an outer protective layer (1), a shielding layer (2), a main conductor core and a plurality of auxiliary conductor cores, wherein the main conductor core comprises a main conductor (3), a first conductive adhesive layer (4), a first insulating layer (5) and a second conductive adhesive layer (6) which are sequentially coated on the periphery of the main conductor (3) layer by layer, and the auxiliary conductor cores comprise auxiliary conductors (7) and a third conductive adhesive layer (8), a second insulating layer (9) and a fourth conductive adhesive layer (10) which are sequentially coated on the periphery of the auxiliary conductors (7) layer by layer;

the auxiliary conductor wire cores surround the periphery of the main conductor wire core and are uniformly distributed, the main conductor wire core and the auxiliary conductor wire core are wrapped into a whole by the shielding layer (2), the outer protective layer (1) covers the periphery of the shielding layer (2), and a third insulating layer (11) is formed in a structural gap among the auxiliary conductor wire core, the main conductor wire core and the shielding layer (2);

at least the peripheral surfaces of the first conductive adhesive layer (4) and the third conductive adhesive layer (8) are smooth surfaces.

2. A low noise core wire according to claim 1, wherein: the main conductor (3) is a tinned copper wire formed by wrapping a synthetic fiber layer, and the auxiliary conductor (7) is a tinned copper wire.

3. A low noise core wire according to claim 1, wherein: the first insulating layer (5), the second insulating layer (9) and the third insulating layer (11) are all HDPE material layers.

4. A low noise core wire according to claim 1, wherein: the shielding layer (2) is a tin-plated copper material layer.

5. A low noise core wire according to claim 1, wherein: the outer protective layer (1) is a TPU material layer.

6. A low noise core wire according to claim 1, wherein: the diameter of the main conductor (3) is larger than that of the auxiliary conductor (7).