Copper-aluminum equipment wire clamp

Abstract

The utility model provides a copper-aluminum equipment wire clamp, which comprises a body and a pressing plate arranged above the body, at least two wire slots for inserting leads are formed between the body and the pressing plate in a surrounding manner, and the equipment wire clamp can overcome the defect that the transmission requirements of large current and high voltage cannot be met in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment wire clamps, in particular to a copper-aluminum equipment wire clamp. Background Art

[0002] Equipment wire clamps are essential equipment for power grid connection, and copper-aluminum transition wire clamps are a commonly used connection method between wires and electrical equipment. In the prior art, a utility model patent with a publication number of CN101916925A discloses a copper-aluminum wire clamp device, which includes a main body and a pressure body. However, there is only one through hole between the main body and the pressure body for inserting the wire. When transmitting power, it cannot meet the transmission requirements of large current and high voltage. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect of the prior art that it cannot meet the transmission requirements of large current and high voltage, thereby providing a copper-aluminum equipment wire clamp that can meet the transmission requirements of large current and high voltage.

[0004] To this end, the utility model provides a copper-aluminum equipment wire clamp, comprising a main body and a pressing plate arranged above the main body, wherein at least two wire grooves for wires to pass through are formed between the main body and the pressing plate.

[0005] Further: the wire slot includes a first wire slot and a second wire slot, and the first wire slot and the second wire slot are arranged in a parallel array.

[0006] Further: positioning holes are provided on both sides of the first wire trough and the second wire trough, the positioning holes are connected to the main body and the pressure plate, the positioning holes are used for bolts to pass through, a spring washer is provided on the outside of the bolt, a nut is provided above the spring washer, and the spring washer is located below the bolt and at the upper end of the pressure plate.

[0007] Furthermore: a flat gasket is also arranged below the elastic gasket.

[0008] Further: the main body includes a contact plate connected to the wire and a connecting plate connected to an external device, the first wire groove and the second wire groove are arranged on the contact plate, and a circular hole connected to the external device is arranged on the connecting plate, and the width of the connecting plate is smaller than the width of the contact plate.

[0009] Furthermore: the connecting plate and the contact plate are both formed by welding aluminum plate layers and copper plate layers.

[0010] The technical solution of the utility model has the following advantages:

[0011] 1. The utility model provides a copper-aluminum equipment wire clamp, which changes the number and distribution structure of wire slots so that the body can accommodate more wires during power transmission, thereby meeting the transmission requirements of large current or high voltage.

[0012] 2. The utility model provides a copper-aluminum equipment wire clamp, wherein the wire trough includes a first wire trough and a second wire trough, the first wire trough and the second wire trough are arranged in parallel, and when installing the wires, one or two wires can be selected to be installed according to the specific current size.

[0013] 3. The utility model provides a copper-aluminum equipment wire clamp. When installing the wire, the nut is first loosened to enlarge the space between the first wire groove and the second wire groove, and then the wire is placed in the first wire groove and / or the second wire groove. Then the nut is tightened, and the nut squeezes the spring washer and the flat washer. The setting of the spring washer and the flat washer can effectively play a shock-absorbing role and prevent the nut from loosening during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The structural diagram of the main body

[0016] Figure 2 It is a schematic diagram of the connection structure between the body and the pressure plate;

[0017] Figure 3 Another structural schematic diagram of the main body and the pressure plate.

[0018] Description of reference numerals:

[0019] 1. Main body; 2. Pressing plate; 3. Wire slot; 31. First wire slot; 32. Second wire slot; 4. Positioning hole; 5. Spring washer; 6. Nut; 7. Flat washer; 8. Contact plate; 81. Connecting plate; 82. Round hole. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Example

[0025] The present embodiment provides a copper-aluminum equipment wire clamp, comprising a main body 1 and a pressing plate 2 arranged above the main body 1, wherein at least two wire grooves 3 for wires to pass through are formed between the main body 1 and the pressing plate 2.

[0026] The above specific improvements are: Figure 1 and Figure 2 As shown, compared with the prior art, by changing the number and distribution structure of the wire slots 3, the main body 1 can accommodate more wires during power transmission, thereby meeting the transmission requirements of large current or high voltage.

[0027] On the basis of the above embodiment: the wire slot 3 includes a first wire slot 31 and a second wire slot 32 , and the first wire slot 31 and the second wire slot 32 are arranged in a parallel array.

[0028] The above specific improvements are: Figure 1 and Figure 2 The wire trough 3 includes a first wire trough 31 and a second wire trough 32. The first wire trough 31 and the second wire trough 32 are arranged in parallel. When installing the wire, if a small flow rate is required, only one wire needs to be installed. When it is necessary to adapt to the needs of large current and high voltage, one wire can be installed in each of the first wire trough 31 and the second wire trough 32.

[0029] On the basis of the above embodiment: positioning holes 4 are provided on both sides of the first wire groove 31 and the second wire groove 32, and the positioning holes 4 are connected to the main body 1 and the pressure plate 2. The positioning holes 4 are used for bolts to pass through, and a spring washer 5 is provided on the outside of the bolt, and a nut 6 is provided above the spring washer 5. The spring washer 5 is located below the bolt and at the upper end of the pressure plate 2.

[0030] On the basis of the above embodiment: a flat gasket 7 is further arranged below the elastic gasket 5 .

[0031] The above specific improvements are: Figure 2 and Figure 3 As shown, when installing the wire, first loosen the nut 6 to enlarge the space between the first wire groove 31 and the second wire groove 32, then put the wire into the first wire groove 31 and / or the second wire groove 32, and then tighten the nut 6. The nut 6 squeezes the spring washer 5 and the flat washer 7. The setting of the spring washer 5 and the flat washer 7 can effectively play a shock-absorbing role and prevent the nut 6 from loosening during long-term use.

[0032] On the basis of the above embodiment: the main body 1 includes a contact plate 8 connected to the wire and a connecting plate 81 connected to an external device, the first wire groove 31 and the second wire groove 32 are arranged on the contact plate 8, and a circular hole 82 connected to the external device is arranged on the connecting plate 81, and the width of the connecting plate 81 is smaller than the width of the contact plate 8.

[0033] The above specific improvements are: Figure 1 As shown, the main body 1 is divided into a contact plate 8 and a connecting plate 81. The connecting plate 81 needs to be inserted into an external device and connected to the external device. By reducing the width of the connecting plate 81, the connecting plate 81 can be better connected to the device terminal board, and the connection between the connecting plate 81 and the contact plate 8 has a transition slope, which can eliminate the stress between the contact plate 8 and the connecting plate 81 and increase the beauty of the product. The connecting plate 81 and the device terminal board, through the setting of the circular hole 82 on the connecting plate 81, can allow the bolt to pass through the circular hole 82, thereby connecting the device and the connecting plate 81.

[0034] On the basis of the above embodiment: the connecting plate 81 and the contact plate 8 are both formed by welding aluminum plate layers and copper plate layers.

[0035] The above-mentioned specific improvements are as follows: in the prior art, the connecting plate 81 is mostly fixed by friction welding or brazing of a small area of ​​copper plate and aluminum plate. However, due to the different thermal expansion coefficients of copper and aluminum, the operation of the wire clamp is affected by thermal expansion and contraction after friction welding, resulting in molecular shedding at the welding point of the copper plate and the aluminum plate, which may cause product breakage over a long period of time. To address this technical problem, the connecting plate 81 is modified in this embodiment to be a composite of an aluminum plate layer and a copper plate layer through a polymer diffusion welding process (the entire surface of the contact plate 8 and the connecting plate 81 is covered with copper, increasing the copper covering area). Experiments have shown that the copper-aluminum composite area reaches 99%, which is much higher than the standard 75%, effectively solving the problem of product breakage.

[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A copper-aluminum equipment wire clamp, characterized by: The invention comprises a main body (1) and a pressing plate (2) arranged above the main body (1); at least two wire grooves (3) for inserting wires are formed between the main body (1) and the pressing plate (2); the wire grooves (3) comprise a first wire groove (31) and a second wire groove (32); the first wire groove (31) and the second wire groove (32) are arranged in a parallel array; positioning holes (4) are arranged on both sides of the first wire groove (31) and the second wire groove (32); the positioning holes (4) are connected to the main body (1) and the pressing plate (2); the positioning holes (4) are used for bolts to pass through; a spring washer (5) is sleeved on the outside of the bolt; a nut (6) is arranged above the spring washer (5); the spring washer (5) is located below the bolt and at the upper end of the pressing plate (2).

2. A copper-aluminum equipment wire clamp according to claim 1, characterized in that: A flat gasket (7) is also provided below the elastic gasket (5).

3. A copper-aluminum equipment wire clamp according to claim 1 or 2, characterized in that: The body (1) comprises a contact plate (8) connected to a wire and a connection plate (81) connected to an external device, the first wire groove (31) and the second wire groove (32) are arranged on the contact plate (8), a circular hole (82) connected to the external device is arranged on the connection plate (81), and the width of the connection plate (81) is smaller than the width of the contact plate (8).

4. A copper-aluminum equipment wire clamp according to claim 3, characterized in that: The connecting plate (81) and the contact plate (8) are both formed by welding aluminum plate layers and copper plate layers.

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