CN219106602U

CN219106602U - Power line and protection device with power line detection function

Info

Publication number: CN219106602U
Application number: CN202223610943.5U
Authority: CN
Inventors: 赵会明; 赵森森; 赵会军
Original assignee: Shenzhen Mingyuantong Technology Co ltd
Current assignee: Shenzhen Mingyuantong Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-30
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a power line, which comprises a plug, two electrodes fixed on one side of the plug and a power line body fixed on one side of the plug far away from the electrodes, wherein the power line body is coated on a plurality of current carrying core wires in an outer insulating layer, each current carrying core wire comprises a current carrying conductor coated by an insulating layer, a shielding layer is coated on the outer part of each insulating layer, a metal conductor is arranged between the insulating layer and the shielding layer of each current carrying core wire, and a protective sleeve is arranged on one side of the electrode.

Description

Power line and protection device with power line detection function

Technical Field

The utility model belongs to the technical field of power lines, and particularly relates to a power line and a protection device with power line detection.

Background

With the rapid increase of the proportion of various electric appliances in social life, the requirements on the safety, quality, service life, production cost reduction and the like of electric wires used by the electric appliances are gradually increased. The requirements for matching and adapting to the new requirements of electrical products with different requirements are also higher and higher as the requirements for matching power lines of the electrical products.

The current China patent publication No. CN215069300U discloses a power cord and a protection device with power cord detection, wherein the power cord comprises a plurality of current-carrying core wires coated in an outer insulating layer, each current-carrying core wire comprises a current-carrying conductor coated by an insulating layer, a shielding layer is coated on the outer part of the insulating layer of at least one current-carrying core wire, a metal conductor is arranged between the insulating layer of the current-carrying core wire and the shielding layer, the shielding layer comprises a conducting surface contacted with the metal conductor and an insulating surface not contacted with the metal conductor, and the area of the conducting surface is smaller than that of the insulating surface. The power line can effectively realize mutual insulation of the metal conductors arranged outside the current-carrying core wires, and detects whether leakage current exists in the current-carrying core wires in the power line and whether a shielding layer and the metal conductors arranged outside the current-carrying core wires are broken or not through the control circuit of the protection device, so that the use safety of the circuit is protected. The power line can detect whether leakage current exists in each current-carrying core wire in the power line and whether a shielding layer and a metal conductor which are arranged outside the current-carrying core wire are broken or not, so that the use safety of a circuit is protected.

Accordingly, the present utility model has been made in view of the above circumstances, and an object of the present utility model is to provide a power line and a protection device with power line detection, which can achieve a more practical value.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a power line and a protection device with power line detection, so as to solve the problems that most of plugs of the existing power line are two-pin plugs or three-pin plugs, electrodes of the plugs are directly exposed to air when the power line is not used, moisture is easy to adhere to the surfaces of the electrodes, if the moisture on the surfaces of the electrodes is not wiped off in time, accidents such as electric shock and the like are easy to occur when the electrodes are connected with a power supply in the follow-up process, and potential safety hazards are large, so that the using effect of the power line is reduced.

The utility model provides a power line and a protection device with power line detection, which are achieved by the following specific technical means:

the utility model provides a power cord and protection device who has power cord to detect, includes the plug, fixes two electrodes on plug one side and fixes the power cord body in plug one side of keeping away from the electrode, the cladding of power cord body is a plurality of current-carrying heart yearns in the external insulation layer, and every current-carrying heart yearn includes the current-carrying conductor that is cladding by the insulating layer, every the outside of insulating layer all cladding has the shielding layer, be provided with the metal conductor between insulating layer and the shielding layer of current-carrying heart yearn, one side of electrode is provided with the lag, the lag includes the diaphragm and the cover of laminating with the plug locate two plug bushes on the electrode, every plug bushes all offer with electrode assorted slot, the both sides of diaphragm all are connected with the installation piece, the both sides of plug all are connected with the locating piece, every all offer the spacing groove on the locating piece, every all rotate in the installation piece and be connected with the rotation axis, every the one end of rotation axis all runs through in the spacing groove and is connected with the latch segment.

Further, the length and the width of the locking block are consistent with those of the limiting groove, and the locking block and the limiting groove are arranged in a cross shape.

Further, each mounting block is internally provided with a mounting groove, each mounting groove is internally connected with a reset spring, and one end of each rotating shaft is connected with the inside of the reset spring.

Further, one side of one of the positioning blocks is connected with a connecting belt, one side of the bottom of the transverse plate is connected with a hanging ring, and the connecting belt is tied on the hanging ring.

Further, a glass fiber layer is arranged on the surface of the outer insulating layer, and an aluminum hydroxide powder layer is filled between the outer insulating layer and the glass fiber layer.

Further, a flame-retardant PVC protective sleeve is arranged on the surface of the glass fiber layer.

The protection device with the power line detection comprises the power line, an input end, an output end and a test assembly, wherein when the shielding layer and the metal conductor are in a normal connection state, the operation of the test assembly cuts off the power connection between the input end and the output end; when the shield and the metal conductor are in an open state, operation of the test assembly fails to sever the power connection between the input and output terminals.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the protective sleeve is arranged, when a power line is not used, the protective sleeve is sleeved on the outer side of the electrode, so that the electrode is inserted into the slot matched with the electrode, and the limit locking is carried out by utilizing the matching of the locking block and the limit slot, so that the protective sleeve can prevent water from being attached to the surface of the electrode, the electrode is not easy to cause electric shock accidents due to water wetting when the electrode is connected with a power supply subsequently, and the potential safety hazard is small;

2. the primary flame retardance is formed by the arranged outer insulating layer, the aluminum hydroxide powder layer and the glass fiber layer, the PVC protective sleeve is used for further flame retardance, the multi-layer flame retardance structure is designed, the flame retardance of the power line body is improved, the normal communication transmission is ensured when a fire disaster occurs, the fire hazard is reduced, and the life and property safety is ensured.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic view of a front sectional structure of the present utility model.

Fig. 3 is an enlarged schematic view of fig. 2 a in accordance with the present utility model.

Fig. 4 is a schematic cross-sectional front view of the power cord body of the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a plug; 2. an electrode; 3. a power line body; 31. a current carrying core wire; 32. an insulating layer; 33. a shielding layer; 34. an outer insulating layer; 35. an aluminum hydroxide powder layer; 36. a glass fiber layer; 37. flame-retardant PVC protective sleeve; 4. a protective sleeve; 41. a cross plate; 42. a plug bush; 43. a slot; 44. a mounting block; 45. a positioning block; 46. a mounting groove; 47. a return spring; 48. a rotation shaft; 49. a limit groove; 410. a locking block; 411. a connecting belt; 412. hanging rings.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 to 4:

the utility model provides a power line, which comprises a plug 1, two electrodes 2 fixed on one side of the plug 1 and a power line body 3 fixed on one side of the plug 1 far away from the electrodes 2, wherein the power line body 3 is coated with a plurality of current-carrying core wires 31 in an outer insulating layer 34, each current-carrying core wire 31 comprises a current-carrying conductor coated by an insulating layer 32, the outside of each insulating layer 32 is coated with a shielding layer 33, and the shielding layer 33 is utilized to monitor whether leakage current is generated in the use process of the current-carrying core wires; be provided with the metal conductor between insulating layer 32 and the shielding layer 33 of current-carrying heart yearn 31, the effect of metal conductor is connecting signal or power, so that the processing of production, one side of electrode 2 is provided with lag 4, lag 4 includes diaphragm 41 and the cover of locating on the electrode 2 with the laminating of plug 1, slot 43 with electrode 2 assorted is all offered to every plug 42, the both sides of diaphragm 41 all are connected with installation piece 44, the both sides of plug 1 all are connected with locating piece 45, all offered spacing groove 49 on every locating piece 45, all rotate in every installation piece 44 and be connected with rotation axis 48, the one end of every rotation axis 48 all runs through in spacing groove 49 and is connected with latch segment 410.

In other embodiments, the lengths and widths of the locking block 410 and the limiting groove 49 are consistent, the locking block 410 and the limiting groove 49 are in a cross-shaped arrangement, so that the locking block cannot be separated from the positioning block 45, the protective sleeve 4 can prevent water from adhering to the surface of the electrode 2, and the electrode 2 is not easy to cause electric shock accidents due to water dipping when the electrode is connected with a power supply subsequently, and has small potential safety hazard.

In other embodiments, each mounting block 44 is provided with a mounting groove 46, a return spring 47 is connected to the inside of each mounting groove 46, one end of each rotating shaft 48 is connected to the inside of the return spring 47, and the return spring 47 can drive the rotating shaft 48 and the locking block 410 to maintain a crisscross state with the limiting groove 49 when the rotating shaft and the locking block are stationary, so that the locking block is not easy to separate from the locking.

In other embodiments, one side of one of the positioning blocks 45 is connected with a connecting band 411, one side of the bottom of the transverse plate 41 is connected with a hanging ring 412, the connecting band 411 is tied on the hanging ring 412, and the protecting sleeve 4 is connected to the plug 1 by using the connecting band 411 and the hanging ring 412, so as to prevent the protecting sleeve 4 from being lost when not in use.

In other embodiments, the surface of the outer insulating layer 34 is provided with the glass fiber layer 36, the aluminum hydroxide powder layer 35 is filled between the outer insulating layer 34 and the glass fiber layer 36, and when the power wire body 3 is used, the arranged outer insulating layer 34, the aluminum hydroxide powder layer 35 and the glass fiber layer 36 form primary flame retardance, and aluminum hydroxide in the aluminum hydroxide powder layer 35 can be used as a flame retardant, so that not only flame retardance can be realized, but also fuming, dripping and toxic gas can be prevented from being generated.

In other embodiments, the surface of the glass fiber layer 36 is provided with a flame retardant PVC protection sleeve 37, and the flame retardant performance of the power wire body 3 is improved by further flame retardant through the flame retardant PVC protection sleeve 37 and the multi-layer flame retardant structural design.

A protection device with power line detection, comprising a power line, an input end, an output end and a test assembly as described above, wherein when the shielding layer 33 and the metal conductor are in a normal connection state, the operation of the test assembly causes the power connection between the input end and the output end to be cut off; when the shielding layer 33 and the metal conductor are in the disconnected state, the operation of the test assembly cannot cut off the power connection between the input end and the output end, and when the power line body 3 is applied to the protection device (LCDI), refer to CN215069300U specifically, as in the prior art, if any position of the shielding layer 33 and the metal conductor is disconnected, a loop cannot be formed when the test switch of the test assembly is closed, and the power connection between the input end and the output end cannot be cut off, so that a user knows that the test fails, and the protection device cannot be used any more.

Specific use and action of the embodiment:

according to the utility model, when the power line body 3 is used, the outer insulating layer 34, the aluminum hydroxide powder layer 35 and the glass fiber layer 36 are arranged to form preliminary flame retardance, the flame retardance PVC protective sleeve 37 is used for further flame retardance, the multi-layer flame retardance structure design improves the flame retardance of the power line body, communication transmission is ensured to be normal when fire disaster occurs, fire hazard is reduced, life and property safety is ensured, aluminum hydroxide in the aluminum hydroxide powder layer 35 is used as a flame retardant, fuming can be prevented, dripping is not generated, toxic gas is not generated, when the power line body 3 is not used, the plug bush 42 is sleeved into the electrode 2, the locking block 410 is rotated to enable the plug bush to be overlapped with the limiting groove 49, at the moment, the reset spring 47 extrudes the locking block 410 and the rotating shaft 48 to push into the limiting groove 49 and extend out of the limiting groove 49, at the moment, the reset spring 47 rebounds the locking block 410 to return to the original position, the reset spring is arranged in a cross shape between the limiting groove 49, the reset spring and the reset block is enabled not to be separated from the positioning block 45, moisture can be blocked from being attached to the surface of the electrode 2, and the electrode 2 is not easy to cause electric shock accidents due to water when the power supply is connected later.

It should be noted that, the protection device is a device or apparatus existing in the prior art or a device or apparatus that can be implemented in the prior art, and the power supply, the specific composition and the principle thereof are clear to those skilled in the art, and are common general knowledge in the art, so they will not be described in detail.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a power cord, includes plug (1), fixes two electrode (2) on one side of plug (1) and fixes power cord body (3) on one side of electrode (2) are kept away from in plug (1), power cord body (3) cladding is a plurality of current-carrying heart yearns (31) in outer insulating layer (34), and every current-carrying heart yearn (31) include the current-carrying conductor by insulating layer (32) cladding, every the outside of insulating layer (32) all cladding has shielding layer (33), be provided with metal conductor between insulating layer (32) and shielding layer (33) of current-carrying heart yearn (31), its characterized in that: one side of electrode (2) is provided with lag (4), lag (4) include diaphragm (41) and cover that laminate with plug (1) locate two plug bush (42) on electrode (2), every plug bush (42) all seted up with electrode (2) assorted slot (43), the both sides of diaphragm (41) all are connected with installation piece (44), the both sides of plug (1) all are connected with locating piece (45), every spacing groove (49) have all been seted up on locating piece (45), every all rotate in installation piece (44) and be connected with rotation axis (48), every rotation axis (48) one end all runs through in spacing groove (49) and is connected with latch segment (410).

2. The power cord of claim 1, wherein: the length and the width of the locking block (410) are consistent with those of the limiting groove (49), and the locking block (410) and the limiting groove (49) are arranged in a cross shape.

3. The power cord of claim 1, wherein: each installation block (44) is internally provided with an installation groove (46), the inside of each installation groove (46) is connected with a return spring (47), and one end of each rotating shaft (48) is connected with the inside of the return spring (47).

4. The power cord of claim 1, wherein: one side of one positioning block (45) is connected with a connecting belt (411), one side of the bottom of the transverse plate (41) is connected with a hanging ring (412), and the connecting belt (411) is tied on the hanging ring (412).

5. The power cord of claim 1, wherein: the surface of the outer insulating layer (34) is provided with a glass fiber layer (36), and an aluminum hydroxide powder layer (35) is filled between the outer insulating layer (34) and the glass fiber layer (36).

6. The power cord of claim 5, wherein: the surface of the glass fiber layer (36) is provided with a flame-retardant PVC protective sleeve (37).

7. A protection device with power cord detects, its characterized in that: comprising an input, an output, a test assembly, the operation of which causes the power connection between the input and the output to be cut off when the shielding layer (33) and the metal conductor are in a normal connection state, and a power line as claimed in any one of claims 1 to 6; when the shielding layer (33) and the metal conductor are in a disconnected state, the operation of the test assembly cannot cut off the power connection between the input terminal and the output terminal.