DC power line with optimized use

Abstract

The utility model relates to the technical field of power supply cables, in particular to an optimized DC power line, which comprises a first plug, a power cable and a substrate terminal which are electrically connected with one another, the substrate terminal is fixedly connected with external power supply equipment and is electrically connected with the external power supply equipment, and the first plug is electrically connected with the power cable. The first plug is used for being inserted into a female seat of external electric equipment so as to be electrically connected with the female seat, and the power cable transmits power of external power supply equipment to the external electric equipment for use; an auxiliary part is further arranged between the substrate terminal and the power cable, the auxiliary part is arranged on the power cable in a sleeving mode, the inner wall of the auxiliary part is fixedly connected to the power cable, the outer wall of the auxiliary part abuts against a shell of external power supply equipment, and therefore the power cable is fixedly connected to the external power supply equipment. In conclusion, the power cable can be better fixed on the external power supply equipment, meanwhile, the cable can be prevented from being broken, the service life of the cable is prolonged, and the use experience of the cable is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power cable, especially a DC power line of optimal use. BACKGROUND

[0002] Power equipment mainly includes two categories of power generation equipment and power supply equipment, and the power generation equipment mainly is power station boiler, steam turbine, gas turbine, water turbine, generator etc.

[0003] Wire and cable is used to transmit electric energy, information or realize electromagnetic energy conversion. Cable is usually by several or several groups of wires, each group at least two, twisted into a cable similar to a rope, each group of wires is insulated from each other, and the whole outside is covered with a highly insulated covering layer, and the cable has the characteristics of internal power transmission and external insulation.

[0004] And in the user end, usually need to use the conversion power, convert alternating current into direct current for small equipment to use, and the user contacts most, is the DC power line on the conversion power, one end is fixedly connected to the conversion power, the other end can be inserted into the conductive female seat of the electric device.

[0005] Because of the need to plug in and out frequently, even need to bend and store frequently, or the electric device will change the use position, the power line also needs to change the connection direction or position accordingly, but the existing DC power line is not convenient to use, and is easy to break, so it is necessary to improve. INVENTION CONTENTS

[0006] The utility model discloses to overcome the above-mentioned situation shortage, aims at providing a kind of technical scheme that can solve above-mentioned problem.

[0007] The utility model provides a kind of DC power line of optimal use, including the first plug, power cable and substrate terminal that form electrical connection between each other, the substrate terminal is fixedly connected to external power supply equipment, and form electrical connection with it, the first plug is used to insert the female seat of external electric device, to form electrical connection with female seat, the power cable transmits the electric power of external power supply equipment to external electric device for use;Auxiliary part is further equipped between the substrate terminal and power cable, the auxiliary part is sleeved on power cable, and its inner wall is fixedly connected to power cable, the outer wall of the auxiliary part is abutted to the shell of external power supply equipment, so that power cable is fixedly connected to external power supply equipment.

[0008] As a further scheme of the utility model: the auxiliary part is provided with a tensile ring, the tensil ring is fixed to one end of the auxiliary part close to the terminal of the substrate, and is installed in the inside of the external power supply equipment, so that the tensile ring is in abutment with the inner wall of the external power supply equipment, thereby preventing the power cable from being pulled out.

[0009] As a further scheme of the utility model: the auxiliary part is further provided with a first anti-bending part, the first anti-bending part is fixed to one end of the auxiliary part away from the terminal of the substrate, and is installed outside the external power supply equipment, and protrudes a certain length.

[0010] As a further scheme of the utility model: the auxiliary part is further provided with a clamping groove, the clamping groove is arranged between the tensile ring and the first anti-bending part, and is arranged through the side wall of the external power supply equipment, so that the tensile ring and the first anti-bending part are in abutment with the inner wall and the outer wall of the side wall respectively.

[0011] As a further scheme of the utility model: the power cable is provided with a first cable and a second cable, the first cable and the second cable are fixed to each other, forming a double-stranded cable; the terminal of the substrate is provided with a first terminal and a second terminal, the first terminal is in electrical connection with the first cable, and the second terminal is in electrical connection with the second cable.

[0012] As a further scheme of the utility model: the first cable is provided with a first conductor and a first outer sheath, the second cable is provided with a second conductor and a second outer sheath, the first conductor and the second conductor are metal conductors that can conduct electricity, and the first outer sheath and the second outer sheath are insulating outer sheaths that cannot conduct electricity.

[0013] As a further scheme of the utility model: the power cable is further provided with a second anti-bending part, one end of the second anti-bending part is fixed to the first plug, the other end of the second anti-bending part is sleeved on the power cable, and is fixed.

[0014] As a further scheme of the utility model: the outer periphery of the first plug is provided with anti-skid protrusions, a plurality of anti-skid protrusions are uniformly distributed on the outer periphery of the plastic part of the first plug.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. By setting the auxiliary part between the power cable and the terminal of the substrate, the power cable can be better fixed on the power supply equipment, i.e. on the conversion power supply, and by setting the tensile ring, the connection structure of the power supply line is further optimized, the power supply line is prevented from coming out, and the power supply line is more convenient to use.

[0017] 2. The first anti-bending part and the second anti-bending part can also be respectively arranged at the two ends of the power cable, so that the two ends of the power cable are not easy to break in long-term use, and the service life of the power supply line is prolonged.

[0018] 3、Still can set square clamping groove in auxiliary, utilize square through hole on conversion power supply shell, can make clamping groove and square through hole match each other, better fix power cable, prevent it from rotating and damaging cable.

[0019] Therefore, through the above improvement, the DC power supply line can be better fixed on the external power supply device, and the cable can also be prevented from breaking, the service life is prolonged, and the use experience is optimized.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 is a schematic view of the structure of the whole of the present application;

[0023] Figure 2 is a schematic view of the structure of the auxiliary of the present application;

[0024] Figure 3 is a schematic view of the cross section of the auxiliary of the present application;

[0025] Figure 4 is a schematic view of the structure of the first plug of the present application;

[0026] Figure 5 is a schematic view of the structure of the first conductor and the second conductor of the present application.

[0027] The reference signs and names in the drawings are as follows:

[0028] 10 first plug; 11 anti-skid convex point; 20 power cable; 21 second anti-bending part; 30 first cable; 31 first conductor; 32 first outer cover; 40 second cable; 41 second conductor; 42 second outer cover; 50 base plate terminal; 51 first terminal; 52 second terminal; 60 auxiliary; 61 anti-pulling ring; 62 first anti-bending part; 63 clamping groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Please refer to Figures 1 to 5 In the embodiments of the utility model, a DC power cord for optimized use comprises a first plug 10, a power cable 20 and a substrate terminal 50 which are electrically connected with each other, the substrate terminal 50 is fixedly connected to an external power supply device and forms an electrical connection therewith, the first plug 10 is used for being inserted into a female seat of an external power-using device to form an electrical connection with the female seat, and the power cable 20 transmits power from the external power supply device to the external power-using device for use; an auxiliary part 60 is further arranged between the substrate terminal 50 and the power cable 20, the auxiliary part 60 is sleeved on the power cable 20 and has an inner wall fixedly connected to the power cable 20, and an outer wall of the auxiliary part 60 abuts against a housing of the external power supply device, so that the power cable 20 is fixedly connected to the external power supply device.

[0031] Specifically, for small electronic devices, direct current is usually used for power supply or charging, so a conversion power supply is needed to convert alternating current on an extension socket or a wall socket into direct current. In order to facilitate use, a corresponding DC power cord is usually arranged on the conversion power supply, so that it can be easily inserted into a small power-using device to provide operating power for the power-using device.

[0032] In order to prevent the power cord from being pulled out, the power cord usually needs to be fixed on the conversion power supply, so the auxiliary part 60 can be arranged, the inner wall of the auxiliary part 60 can be sleeved on the power cable 20, and in production, a corresponding mold can be used to directly injection-mold the auxiliary part 60 on the power cable 20 to form a stable fixing structure.

[0033] Secondly, the auxiliary part 60 can be fixed in the cable mounting hole on the side wall of the conversion power supply, so that the DC power cord can be fixed on the conversion power supply, and the DC power cord is convenient to use.

[0034] As Figure 2 shown, preferably, the auxiliary part 60 is provided with a pull ring 61, the pull ring 61 is fixedly connected to one end of the auxiliary part 60 close to the substrate terminal 50 and is arranged in the internal part of the external power supply device, so that the pull ring 61 abuts against the inner wall of the external power supply device, thereby preventing the power cable 20 from being pulled out.

[0035] Specifically, in order to further strengthen the tensile properties of the auxiliary part 60, prevent the DC power line from being pulled out of the shell mounting hole of the conversion power supply during long-term use, a tensile ring 61 can also be provided, which has a diameter greater than that of the mounting hole, so that it can be clamped on the side wall of the mounting hole to form a stable fixing structure.

[0036] As shown in Figures 1 to 2 , preferably, the auxiliary part 60 is also provided with a first anti-bending part 62, which is fixedly connected to one end of the auxiliary part 60 away from the base plate terminal 50 and is installed on the outside of the external power supply device, protruding a certain length.

[0037] Specifically, since the conversion power supply is usually plugged into the outlet or wall outlet, its position remains fixed. However, the position of the small power-consuming device is not fixed, and it may even be held in the user's hand for continuous use. Therefore, the DC power line will move or be pulled, which can easily cause the part of the power cable 20 in contact with the conversion power supply to break. Therefore, a corresponding first anti-bending part 62 can be provided, which has a certain deformation ability and elastic properties to prevent the cable from being broken. The first anti-bending part 62 can be in abutment with the outer wall of the external power supply device, thereby preventing the part of the power cable 20 close to the external power supply device from being broken.

[0038] As shown in Figures 1 to 3 , preferably, the auxiliary part 60 is also provided with a clamping groove 63, which is arranged between the tensile ring 61 and the first anti-bending part 62 and is provided through the side wall of the external power supply device, so that the tensile ring 61 and the first anti-bending part 62 are in abutment with the inner wall and the outer wall of the side wall, respectively.

[0039] Specifically, the side wall of the external power supply device usually has a corresponding through hole for passing the power cable 20. The clamping groove 63 can be clamped into the corresponding through hole, so that the side wall of the power supply device and the clamping groove 63 cooperate with each other to form a fixed connection. It can be understood that, in order to prevent the power cable 20 from rotating around the axis of the through hole during use, or even being twisted off, the through hole in the side wall of the power supply device can be a square through hole, and the cross section of the clamping groove 63 can also be a corresponding square, so that the auxiliary part 60 can be limited in the square through hole to prevent it from rotating.

[0040] As shown in Figure 1 , preferably, the power cable 20 is provided with a first cable 30 and a second cable 40, and the first cable 30 and the second cable 40 are fixedly connected to each other to form a double-stranded cable; the base plate terminal 50 is provided with a first terminal 51 and a second terminal 52, the first terminal 51 is in electrical connection with the first cable 30, and the second terminal 52 is in electrical connection with the second cable 40.

[0041] Specifically, since the direct current has positive and negative poles, at least two independent cables need to be provided and connected with two independent substrate rotors, so that the two independent substrate terminals 50 can be electrically connected with the positive and negative poles inside the conversion power supply. In addition, the side walls of the first cable 30 and the second cable 40 can be bonded to each other, thereby forming two power cables 20 bonded together.

[0042] As Figure 5 shown, preferably, the first cable 30 is provided with a first conductor 31 and a first outer sheath 32, the second cable 40 is provided with a second conductor 41 and a second outer sheath 42, the first conductor 31 and the second conductor 41 are provided as conductive metal conductors, and the first outer sheath 32 and the second outer sheath 42 are provided as non-conductive insulating outer sheaths.

[0043] Specifically, in order to facilitate conduction, the first conductor 31 and the second conductor 41 can each be provided as a conductive metal conductor, such as copper metal or aluminum metal, etc. The first outer sheath 32 and the second outer sheath 42 can each be made of a non-metal material, such as PVC material, etc. In addition, the outer walls of the first outer sheath 32 and the second outer sheath 42 are fixedly connected to each other, and can be bonded together by a process of hot melting and direct bonding of the outer sheaths in the existing production process, to form a fixed connection.

[0044] As Figure 1 and Figure 4 shown, preferably, the power cable 20 further comprises a second anti-bending portion 21, one end of the second anti-bending portion 21 is fixedly connected to the first plug 10, and the other end of the second anti-bending portion 21 is sleeved on the power cable 20 and forms a fixed connection.

[0045] Specifically, similarly, in order to prevent the connection between the power cable 20 and the first plug 10 from breaking during long-term use, a second anti-bending portion 21 can also be provided at the corresponding connection part to enhance its anti-breaking performance. In addition, the first anti-bending portion 62 and the second anti-bending portion 21 can each be produced using PVC material in the existing material. Moreover, a structure with alternating concave and convex structures can be provided on the outer walls of the first anti-bending portion 62 and the second anti-bending portion 21, so as to have certain deformation characteristics, thereby offsetting and balancing the pulling force on the power cable 20 during use of the power cable 20, to prevent the power cable 20 from being broken.

[0046] As Figure 1 and Figure 4 shown, preferably, the outer periphery of the first plug 10 is provided with anti-slip protrusions 11, and the plurality of anti-slip protrusions 11 are uniformly distributed on the outer periphery of the plastic part of the first plug 10.

[0047] Specific, in order to further optimize the use of DC power line, it can also be provided with anti-skid convex point 11. Anti-skid convex point 11 can enhance the surface friction of the first plug 10, so that the user can hold the part with anti-skid convex point 11 during use, so that the first plug 10 is more convenient to plug. And the first plug 10 can be provided with hardware and plastic parts fixed to each other, wherein the hardware is provided with DC 5.5*2.1*22 round straight conductive hardware head, and the conductive inner circle of the conductive hardware head is electrically connected with the first cable 30, and the conductive outer circle is electrically connected with the second cable 40.

[0048] Secondly, the plastic part is sleeved on the outer wall of the conductive hardware head and is fixedly connected. At the same time, the plastic part is also fixedly connected with the second anti-bending part 21. Alternatively, the plastic part and the second anti-bending part 21 are made by one-time injection molding process using the same mold.

[0049] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A DC power cord for optimized use, characterized in that The utility model provides an electric power cable (20) and the substrate terminal (50) between still being equipped with auxiliary part (60), auxiliary part (60) cover electric power cable (20), and make its inner wall fixed connection in electric power cable (20), auxiliary part (60) outer wall abuts on the shell of external power supply equipment, so that electric power cable (20) is fixedly connected to external power supply equipment.

2. An optimized use DC power cord according to claim 1, wherein, The auxiliary part (60) is provided with a tensile ring (61) fixedly connected to one end of the auxiliary part (60) close to the substrate terminal (50) and installed in the internal of the external power supply equipment, so that the tensile ring (61) abuts against the inner wall of the external power supply equipment, thereby preventing the electric power cable (20) from being pulled out.

3. An optimized use DC power cord according to claim 2, wherein, The auxiliary part (60) is further provided with a first anti-bending part (62) fixedly connected to one end of the auxiliary part (60) away from the substrate terminal (50) and installed outside the external power supply equipment, and protruding a certain length.

4. An optimized use DC power cord according to claim 3, wherein, The auxiliary part (60) is further provided with a clamping groove (63) arranged between the tensile ring (61) and the first anti-bending part (62) and penetrating the side wall of the external power supply equipment, so that the tensile ring (61) and the first anti-bending part (62) abut against the inner wall and the outer wall of the side wall, respectively.

5. An optimized use DC power cord according to claim 1, wherein, The electric power cable (20) is provided with a first cable (30) and a second cable (40), and the first cable (30) and the second cable (40) are fixedly connected to each other to form a double-stranded cable; the substrate terminal (50) is provided with a first terminal (51) and a second terminal (52), the first terminal (51) is in electrical connection with the first cable (30), and the second terminal (52) is in electrical connection with the second cable (40).

6. An optimized use DC power cord according to claim 5, wherein, The first cable (30) is provided with a first conductor (31) and a first outer sheath (32), and the second cable (40) is provided with a second conductor (41) and a second outer sheath (42), the first conductor (31) and the second conductor (41) are metal conductors that can conduct electricity, and the first outer sheath (32) and the second outer sheath (42) are insulating outer sheaths that cannot conduct electricity.

7. An optimized use DC power cord according to claim 1, wherein, The electric power cable (20) is further provided with a second anti-bending part (21) fixedly connected to one end of the first plug (10) and sleeved on the electric power cable (20) at the other end.

8. An optimized use DC power cord according to claim 1, wherein, The first plug (10) is provided with anti-skid protrusions (11) on the outer periphery of the plastic part of the first plug (10).

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