Electric heating wire transition connecting device

Abstract

The utility model relates to the technical field of electrical engineering, in particular to an electric heating wire transition connecting device, which is characterized in that the upper end of an aluminum alloy transition opening connector is provided with a front-back through opening, and the lower end of the aluminum alloy transition opening connector is provided with a left-right through opening; two pairs of electric heating wires with the same diameter are respectively inserted into an opening at the upper end of the aluminum alloy transition opening connector; the aluminum alloy conductive rod is inserted into the openings at the lower ends of the two aluminum alloy transition opening connectors, and the aluminum alloy conductive rod is connected with the next group of heating wires; the screw rods are respectively screwed and arranged on the upper openings of the aluminum alloy transition opening connectors in a penetrating manner; the contact area and heat dissipation performance of the heating wire and the connector are enhanced, poor oxidation contact is prevented, and the service life is prolonged; the aperture of the connector and the length of the conductive rod are adjustable to meet the requirements of different heating wire diameters and group spacing; the opening design facilitates disassembly and maintenance, and the manufacturing cost is reduced through standardized production; the opening structure tightly locks the electric heating wire, and poor conductivity caused by thermal expansion and cold contraction in the heating process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical engineering technical field, concretely relates to a kind of electric heating wire transition connecting device. BACKGROUND

[0002] Current domestic industrial heat treatment furnace electric heating wire uses two kinds of structure connection mode, one is that aluminum alloy component without opening is fastened with electric heating wire leading end using screw, since the aperture of aluminum alloy component is greater than the diameter of electric heating wire, contact area reduces, leading to the phenomenon of poor heating contact, two is that wire and electric heating wire are directly combined, locked using U-shaped metal buckle, same contact area reduces, leading to the phenomenon of poor heating contact. Above-mentioned two connection modes all have same problem, and processing cost is high, service life is short, construction is difficult, for this, present a kind of electric heating wire transition connecting device. SUMMARY

[0003] The utility model discloses to the defects and deficiencies of prior art, provide a kind of electric heating wire transition connecting device, enhance the contact area and heat dissipation performance of electric heating wire and connector, prevent oxidation and poor contact, improve service life;Connector aperture and electrically conductive rod length are adjustable, adapt to different electric heating wire diameter and group spacing requirement;Open shape design facilitates disassembly and repair, standardization production reduces manufacturing cost;Open structure tightly locks electric heating wire, avoids the poor conduction caused by thermal expansion and contraction during heating process.

[0004] To achieve the above object, the utility model discloses the following technical scheme it contains electric heating wire;

[0005] It also contains:

[0006] Aluminum alloy transition opening connector, the number of the aluminum alloy transition opening connector is two, the upper end of the aluminum alloy transition opening connector is provided with front and rear through one opening, the lower end of the aluminum alloy transition opening connector is provided with left and right through two openings, two same diameter electric heating wires are inserted into the upper end one opening of the aluminum alloy transition opening connector respectively;The one opening and the two openings of the aluminum alloy transition opening connector are all set as rectangle;

[0007] Aluminum alloy electrically conductive rod, the aluminum alloy electrically conductive rod is inserted in the two lower ends two openings of the aluminum alloy transition opening connector, and the aluminum alloy electrically conductive rod is connected with next group electric heating wire;

[0008] Screw rod, the number of the screw rod is four, and is respectively screwed and connected and is inserted in the upper one opening and the lower two openings of the aluminum alloy transition opening connector, and the left end of the upper screw rod and the right end of the lower screw rod are all provided with screw hole.

[0009] Preferably, the two upper screws are arranged above the electric heating wire, and are screwed from the left side of the alloy transition opening connector to the right side of the alloy transition opening connector, and are screwed into the first opening at the upper end of the aluminum alloy transition opening connector.

[0010] Preferably, the two lower screws are arranged below the aluminum alloy conducting rod, and are screwed from the front side of the alloy transition opening connector to the rear side of the alloy transition opening connector, and are screwed into the second opening at the upper end of the aluminum alloy transition opening connector.

[0011] Preferably, the four screws are each screwed with a nut at one end, and the nut is arranged in a hexagonal nut structure.

[0012] Preferably, the upper nut is arranged at the right side of the aluminum alloy transition opening connector, and the lower nut is arranged at the rear side of the aluminum alloy transition opening connector.

[0013] Preferably, the four nuts are arranged on the aluminum alloy transition opening connector, and the opposite side width of the nut is greater than the width of the first opening and the second opening of the aluminum alloy transition opening connector.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The contact area and heat dissipation performance of the electric heating wire and the connector are enhanced, poor oxidation contact is prevented, and the service life is improved.

[0016] 2. The connector aperture and the conducting rod length are adjustable, and different electric heating wire diameters and group spacings are adapted.

[0017] 3. The opening shape design facilitates disassembly and maintenance, and standardized production reduces manufacturing cost.

[0018] 4. The opening structure tightly locks the electric heating wire, and avoids poor conduction caused by thermal expansion and cold contraction during heating. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the front view of the utility model.

[0020] Figure 2 is Figure 1 the enlarged view of A part of

[0021] Figure 3 is the left view of the utility model.

[0022] Figure 4 is Figure 2 the enlarged view of B part of

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Electric heating wire 1, aluminum alloy transition opening connector 2, No. 1 opening 2-1, No. 2 opening 2-2, aluminum alloy conducting rod 3, screw rod 4, nut 5. DETAILED DESCRIPTION

[0025] The technical solutions in the utility model will be described clearly and completely in conjunction with the drawings. The preferred embodiments described in the description are only examples. All other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] The specific embodiment adopts the following technical solutions:

[0027] Please refer to Figures 1-4 The embodiment contains electric heating wire 1;

[0028] It also contains:

[0029] Aluminum alloy transition opening connector 2, the number of the aluminum alloy transition opening connector 2 is two, the upper end of the aluminum alloy transition opening connector 2 is provided with front and rear through No. 1 opening 2-1, the lower end of the aluminum alloy transition opening connector 2 is provided with left and right through No. 2 opening 2-2, two electric heating wires 1 of the same diameter are inserted into the upper end No. 1 opening 2-1 of the aluminum alloy transition opening connector 2 respectively; the No. 1 opening 2-1 and the No. 2 opening 2-2 of the aluminum alloy transition opening connector 2 are both rectangularly arranged;

[0030] Aluminum alloy conducting rod 3, the aluminum alloy conducting rod 3 is inserted into the No. 2 opening 2-2 of the lower end of the two aluminum alloy transition opening connectors 2, and the aluminum alloy conducting rod 3 is connected with the next group of electric heating wires 1;

[0031] Screw rod 4, the number of the screw rod 4 is four, and is respectively screwed and inserted into the No. 1 opening 2-1 and the No. 2 opening 2-2 of the aluminum alloy transition opening connector 2, the left end of the upper screw rod 4 and the right end of the lower screw rod 4 are both provided with screw holes; the two upper screw rods 4 are arranged above the electric heating wire 1, and are screwed and inserted from the left side of the aluminum alloy transition opening connector 2 to the right side of the aluminum alloy transition opening connector 2, and are inserted into the No. 1 opening 2-1 of the upper end of the aluminum alloy transition opening connector 2; the two lower screw rods 4 are arranged below the aluminum alloy conducting rod 3, and are screwed and inserted from the front side of the aluminum alloy transition opening connector 2 to the rear side of the aluminum alloy transition opening connector 2, and are inserted into the No. 2 opening 2-2 of the upper end of the aluminum alloy transition opening connector 2;

[0032] The screw nut 5 is provided in a hexagonal nut structure, the upper screw nut 5 is arranged on the right side of the aluminum alloy transition opening connector 2, and the lower screw nut 5 is arranged on the rear side of the aluminum alloy transition opening connector 2.

[0033] In use of the utility model, the aluminum alloy transition opening connector 2 is inserted into the electric heating wire 1 with the same diameter, the aluminum alloy conducting rod 3 is connected with the next group of electric heating wires 1, the aluminum alloy transition opening connector 2 is locked by the screw rod 4 and the screw nut 5 after the connection is completed, the electric heating wire 1 has better contact area and heat dissipation condition with the transition connecting device, the service life of the wiring device is greatly improved, the phenomenon that the electric heating wire 1 and the transition connecting device are oxidized due to heat and have poor contact is effectively prevented, the electric heating wire 1 is convenient to maintain, and the manufacturing cost is reduced after standardization.

[0034] No matter the diameter size of the electric heating wire 1 changes, the aperture of the aluminum alloy transition opening connector 2 changes, no matter the spacing size between the connected electric heating wire 1 groups changes, the length of the aluminum alloy conducting rod 3 changes, the electric heating wire 1 transition connecting device group can meet the requirements of different diameters of the electric heating wire 1 and the spacing length between the electric heating groups, the aluminum alloy transition opening connector 2 is in an opening shape, can tightly lock the electric heating wire 1, and solves the problem that the electric heating wire 1 has poor contact and transition during the heating process.

[0035] Compared with the prior art, the utility model has the beneficial effects that:

[0036] 1. The contact area and heat dissipation performance of the electric heating wire 1 and the connector are enhanced, oxidation and poor contact are prevented, and the service life is improved.

[0037] 2. The opening of the aluminum alloy transition opening connector 2 and the length of the conducting rod 3 are adjustable, and different diameters of the electric heating wire 1 and group spacing requirements are met.

[0038] 3. The opening shape design is convenient for disassembly, maintenance and standardization production, and the manufacturing cost is reduced.

[0039] 4. The opening structure tightly locks the electric heating wire 1, and avoids poor conduction due to thermal expansion and cold contraction during the heating process.

[0040] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features is made, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heating wire transition connection device, comprising a heating wire (1); characterized in that: It also includes: The aluminum alloy transition opening connector (2) has two components. The upper end of the aluminum alloy transition opening connector (2) has a first opening (2-1) that runs through the front and back, and the lower end of the aluminum alloy transition opening connector (2) has a second opening (2-2) that runs through the left and right. Two heating wires (1) of the same diameter are respectively inserted into the first opening (2-1) at the upper end of the aluminum alloy transition opening connector (2). The first opening (2-1) and the second opening (2-2) of the aluminum alloy transition opening connector (2) are both rectangular. An aluminum alloy conductive rod (3) is inserted into the second opening (2-2) at the lower end of two aluminum alloy transition opening connectors (2), and the aluminum alloy conductive rod (3) is connected to the next set of heating wires (1). The screws (4) are four in number and are respectively screwed through the first opening (2-1) and the second opening (2-2) on the aluminum alloy transition opening connector (2). The left end of the upper screw (4) and the right end of the lower screw (4) are provided with screw holes.

2. The heating wire transition connection device according to claim 1, characterized in that: The two screws (4) located above the heating wire (1) are screwed in from the left side of the alloy transition opening connector (2) and passed through to the right side of the alloy transition opening connector (2), and passed through the No. 1 opening (2-1) at the upper end of the aluminum alloy transition opening connector (2).

3. The heating wire transition connection device according to claim 1, characterized in that: The two screws (4) located below are located below the aluminum alloy conductive rod (3) and are screwed from the front side of the alloy transition opening connector (2) to the rear side of the alloy transition opening connector (2) and inserted into the second opening (2-2) at the upper end of the aluminum alloy transition opening connector (2).

4. The heating wire transition connection device according to claim 1, characterized in that: Each of the four screws (4) has a nut (5) screwed onto one end, and the nuts (5) are all hexagonal nut structures.

5. The heating wire transition connection device according to claim 4, characterized in that: The upper nut (5) is located on the right side of the aluminum alloy transition opening connector (2), and the lower nut (5) is located on the rear side of the aluminum alloy transition opening connector (2).

6. The heating wire transition connection device according to claim 1, characterized in that: All four nuts (5) are abutted on the aluminum alloy transition opening connector (2). The width of opposite sides of the nuts (5) is greater than the width of the first opening (2-1) and the second opening (2-2) of the aluminum alloy transition opening connector (2).

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