CN102064479B - Switch adapter for low-voltage switchgear assembly - Google Patents

Abstract

The invention relates to the technology of complete sets of switch equipment, in particular to a switch adapter piece for low-voltage complete sets of switch equipment; it is including the insulating mounting body that is used for fixing the through-hole at low-voltage switchgear's bottom plate, the copper bar of plugging into, L type copper bar, the fixed screw, the rectangular hole of intercommunication top and bottom is seted up to insulating mounting body, the copper bar of plugging into inserts in the rectangular hole, the one end that the copper bar of plugging into is located the bottom of low-voltage switchgear's bottom is used for connecting supply circuit, the one end fixed connection of fixed screw and L type copper bar is passed through to the one end that the copper bar of plugging into is located the top of low-voltage switchgear's bottom plate, the other end of L type copper bar is arranged in inserting low-voltage switchgear's electrical apparatus and is connected with the electrical apparatus electricity. The invention is very convenient for maintaining or replacing electrical devices such as switches and the like, and does not need to open the bottom plate of the isolation chamber.

Description

Switch adapters for low-voltage switchgear assemblies

technical field

The invention relates to the technology of complete switchgear, in particular to a switch adapter for low-voltage complete switchgear.

Background technique

The low-voltage complete switchgear is responsible for the control, protection, measurement, conversion and distribution of electric energy in the low-voltage power supply system. Since the low-voltage switchgear goes deep into production sites, public places, residential buildings and other places, it can be said that all places where electrical equipment is used must be equipped with low-voltage switchgear. Most of the power supply in my country is realized through low-voltage switchgear. The development of low-voltage switchgear is rooted in industries such as material industry, low-voltage electrical appliances, and processing technology. Therefore, the production level of low-voltage switchgear is a country's economic strength and science. An important embodiment of technology and living standards.

At present, low-voltage complete switchgear mainly adopts fixed partition and withdrawable structures. Withdrawable low-voltage complete switchgear, due to its too many connectors and limited current capacity, the connectors are prone to heat, which will affect the reliability and stability of power supply, so its application has certain limitations. The fixed partition low-voltage complete switchgear is to separate the busbar, functional unit, incoming and outgoing cables in the cabinet into multiple isolation rooms through the fixed partition. When a circuit in the cabinet fails, it will not affect other circuits. , can guarantee the normal power supply of other loops, with good safety and stability.

In the prior art, most of the switches and other electrical devices in each isolation room of the fixed partition type low-voltage complete switchgear are connected to the copper bars located at the bottom of the bottom plate of the isolation room through screws. Only the bottom plate of the isolation room can be removed or installed with electrical devices such as switches, which is cumbersome to operate. Moreover, when the bottom plate of the isolation room is opened, all circuits of the entire low-voltage complete switchgear need to be powered off, affecting the power supply of other circuits. In addition, some fixed and separated low-voltage complete switchgears use plug-in switches to solve the above problems. However, plug-in switches are expensive, and after long-term use, the safety and stability are not good.

Contents of the invention

The purpose of the present invention is to provide a switch adapter for low-voltage complete switchgear that is convenient for maintenance or replacement of electrical devices such as switches, aiming at the deficiencies of the prior art.

The purpose of the present invention is achieved through the following technical measures: a switch adapter for low-voltage switchgear, which includes an insulating fixture body for fixing on the through hole of the bottom plate of the low-voltage switchgear, connecting copper bars, L-shaped copper bar, fixing screws, and the body of the insulating fixture are provided with a long hole connecting the top and bottom. The connecting copper bar is inserted into the long hole. The connecting copper bar is located at one end of the bottom plate of the low-voltage complete switchgear for To connect the power supply circuit, one end of the connection copper bar located on the top of the bottom plate of the low-voltage switchgear is fixedly connected with one end of the L-shaped copper bar through a fixing screw, and the other end of the L-shaped copper bar is used to insert into the electrical device of the low-voltage switchgear And electrically connected with the electrical device.

The body of the insulating fixture is provided with a clamping slot for clamping and fixing.

The body of the insulating fixture is provided with a first screw hole for fixed connection with the bottom plate of the low-voltage complete switchgear, and a first screw is arranged in the first screw hole, and the first screw is a hexagon socket head screw.

The body of the insulating fixture is provided with a second screw for pressing and connecting the copper bars. The body of the insulating fixture is provided with a second screw hole matching the second screw, and a second screw hole matching the second screw is fixed in the second screw hole. nut, and the second screw is an inner hexagon screw.

The body of the insulating fixture is L-shaped and includes a vertical part and a horizontal part. The vertical part is located at the bottom of the bottom plate of the low-voltage switchgear set, and the horizontal part is located at the top of the bottom plate of the low-voltage switchgear set.

Both the connection copper bar and the L-shaped copper bar are provided with screw holes for fixing screws to pass through.

The fixing screws are hexagonal screws.

The fixing screws can also be five-point screws.

The beneficial effects of the present invention are that: the present invention includes an insulating fixture body, a connection copper bar, an L-shaped copper bar, and fixing screws, which are used to fix the through holes of the bottom plate of the low-voltage complete switchgear, and the insulating fixture body is provided with a connecting top and The long hole at the bottom, the connection copper bar is inserted into the long hole, the connection copper bar is located at the bottom end of the bottom plate of the low-voltage switchgear set for connecting the power supply circuit, and the connection copper bar is located at the top of the bottom plate of the low-voltage switchgear set One end of the L-shaped copper bar is fixedly connected to one end of the L-shaped copper bar through a set screw, and the other end of the L-shaped copper bar is used to insert into the electrical device of the low-voltage complete switchgear and be electrically connected to the electrical device. When electrical devices such as switches need to be installed, as long as the other end of the L-shaped copper bar of the present invention is inserted into the corresponding installation hole of electrical devices such as switches, and fixed with the screws of the electrical devices themselves, the electrical devices such as switches are installed; When it is necessary to remove the switch and other electrical devices, as long as the screws and fixing screws of the switch and other electrical devices themselves are unscrewed, and the L-shaped copper bar is removed, the switch and other electrical devices can be removed. Therefore, the present invention is very convenient for maintenance or replacement of electrical devices such as switches, without opening the bottom plate of the isolation chamber.

Description of drawings

Fig. 1 is a structural schematic diagram of Embodiment 1 of a switch adapter for a low-voltage switchgear set according to the present invention.

Fig. 2 is an exploded schematic view of Embodiment 1 of a switch adapter for a low-voltage switchgear set according to the present invention.

Fig. 3 is a cross-sectional view of an insulating fixture body of Embodiment 1 of a switch adapter for low-voltage complete switchgear of the present invention.

Fig. 4 is a diagram of the use state of Embodiment 1 of a switch adapter for a low-voltage switchgear set according to the present invention.

In Figure 1, Figure 2, Figure 3 and Figure 4 include:

1——Insulation fixture body 11——Long hole

12——Clip slot 131——The first screw hole

132——The first screw 141——The second screw hole

142——Second screw 2——Connecting copper bar

3——L-shaped copper bar 4——fixing screw

5——Screw hole 6——Bottom plate

61——Through hole 7——Electrical device

71 - screw.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Example 1

A switch adapter for low-voltage complete switchgear of the present invention, as shown in Figures 1 to 4, includes an insulating fixture body 1 for fixing to the through hole 61 of the bottom plate 6 of the low-voltage complete switchgear, a connection Copper bar 2, L-shaped copper bar 3, and fixing screws 4; among them, the bottom plate 6 of the low-voltage switchgear is pre-opened with a through hole 61 that matches the insulating fixture body 1, so that the insulating fixture body 1 can just be fixed in the through hole 61; the body 1 of the insulating fixture is provided with a long hole 11 connecting the top and the bottom, and the connecting copper bar 2 is inserted into the long hole 11. Since the connecting copper bar 2 is long, the connecting copper bar 2 is just It can pass through the long hole 11, and one end of the connection copper bar 2 is located at the bottom of the bottom plate 6 of the low-voltage switchgear set, and the other end of the connection copper bar 2 is located at the top of the bottom plate 6 of the low-voltage switchgear set; the connection copper bar 2 One end at the bottom of the bottom plate 6 of the low-voltage switchgear is used to connect the power supply circuit, so that the connecting copper bar 2 is electrically connected to the power supply circuit at the bottom of the bottom plate 6, and the connecting copper bar 2 is located on the top of the bottom plate 6 of the low-voltage switchgear set One end of the L-shaped copper bar 3 is fixedly connected with one end of the L-shaped copper bar 3 through the fixing screw 4, so that the L-shaped copper bar 3 is electrically connected with the connecting copper bar 2, and the other end of the L-shaped copper bar 3 is used to insert the electrical device of the low-voltage switchgear 7 and is electrically connected with the electrical device 7, that is, the electrical device 7 such as the switch of the low-voltage switchgear is electrically connected with the connection copper bar 2 through the L-shaped copper bar 3.

The insulating fixture body 1 is provided with a snap-in slot 12 for snap-fitting. The width of the snap-in slot 12 matches the thickness of the bottom plate 6 of the low-voltage complete switchgear, so that the insulating mount body 1 can just be clipped and fixed on the low-voltage complete set. In the through hole 61 of the bottom plate 6 of the switchgear.

The insulating fixture body 1 is provided with a first screw hole 131 for fixed connection with the bottom plate 6 of the low-voltage switchgear. The first screw hole 131 is provided with a first screw 132, so that the insulating fixture body 1 can pass through the first screw 132. It is more firmly fixed on the bottom plate 6 of the low-voltage complete switchgear, wherein the first screw 132 is a hexagon socket head screw.

The insulating fixture body 1 is provided with a second screw 142 for pressing the connection copper bar 2, and the insulating fixture body 1 is provided with a second screw hole 141 matching the second screw 142, so that the insulating fixture body 1 passes through the second The screw 142 can be more firmly pressed and fixed to connect the copper bar 2. A nut matching the second screw 142 is fixed in the second screw hole 141. The nut is pre-fixed in the second screw hole when the insulating fixture body 1 is opened. In 141, the second screw 142 is an inner hexagon screw.

The insulating fixture body 1 is L-shaped, which includes a vertical part and a horizontal part. The vertical part is located at the bottom of the bottom plate 6 of the low-voltage switchgear set, and the horizontal part is located at the top of the bottom plate 6 of the low-voltage switchgear set. This structure can make the insulating fixture It is better fixed on the bottom plate 6 of the low-voltage switchgear set.

Both the connecting copper bar 2 and the L-shaped copper bar 3 are provided with screw holes 5 for the fixing screws 4 to pass through, so that the fixing screws 4 are sequentially connected to the screw holes 5 of the copper bar 2 and the screw holes 5 of the L-shaped copper bar 3, Therefore, one end of the connection copper bar 2 located on the top of the bottom plate 6 of the low-voltage complete switchgear is fixedly connected to one end of the L-shaped copper bar 3 . Wherein, the fixing screw 4 is a hexagonal screw.

The utility model of the present invention is relatively strong, and can be transferred to electrical devices 7 such as fixed load switches, knife fuse switches, and molded case molded circuit breakers, and is widely used in various fixed and separated low-voltage complete switchgears. Before use, it is necessary to open the bottom plate 6 of the isolation chamber of the low-voltage complete switchgear, and install some components of the present invention in advance. The installation process is as follows: First, the insulating fixture body 1 is clamped by the clamping groove 12 and the first screw 132. It is fixed in the through hole 61 of the bottom plate 6 of the low-voltage switchgear set; then, the connection copper bar 2 is inserted into the long hole 11 of the insulating fixture body 1, and the connection copper bar 2 is located on the bottom plate 6 of the low-voltage switchgear set One end of the bottom of the bottom is connected to the power supply circuit at the bottom of the base plate 6; then, the second screw 142 is pressed to connect the copper bar 2, and the base plate 6 of the isolation room of the complete set of switchgear can be closed to complete the pre-installation procedure.

After completing the pre-installation procedure, when it is necessary to install switches and other electrical devices 7, only one end of the connecting copper bar 2 located on the top of the bottom plate 6 of the low-voltage complete switchgear is fixedly connected with one end of the L-shaped copper bar 3 through the fixing screw 4 , and the other end of the L-shaped copper bar 3 is inserted into the installation hole corresponding to the electrical device 7 such as a switch, and fixed by the screw 71 of the electrical device 7 itself such as the switch, that is, the electrical device 7 such as the switch is installed.

When it is necessary to remove the switch and other electrical devices 7, as long as the screws 71 and the fixing screws 4 of the switch and other electrical devices 7 themselves are unscrewed, and the L-shaped copper bar 3 is taken off, the switch and other electrical devices 7 can be removed without opening the isolation chamber The bottom plate 6 is simple and convenient to operate; at this time, when it is necessary to install switches and other electrical devices 7, just connect the end of the connection copper bar 2 on the top of the bottom plate 6 of the low-voltage switchgear with the L-shaped copper bar through the fixing screw 4 3 is fixedly connected, and the other end of the L-shaped copper bar 3 is inserted into the installation hole corresponding to the electrical device 7 such as a switch, and fixed by the screw 71 of the electrical device 7 itself, that is, the electrical device 7 such as the switch is installed, and the operation is easy. Very simple and convenient, also without opening the bottom plate 6 of the isolation chamber. Because there is no need to open the bottom plate 6 of the isolation chamber, when the present invention repairs or replaces electrical devices 7 such as switches, as long as the circuit power supply of the electrical device 7 is disconnected, there is no need for all circuits of the whole low-voltage complete switchgear to be powered off, thereby not affecting Power supply for other circuits. Simultaneously, the connection of each component of the present invention and the connection with electrical devices 7 such as switches all adopt fixed connection mode, so the safety and stability of the present invention are better.

Example 2

Embodiment 2 of a switch adapter for low-voltage complete switchgear of the present invention. The difference between this embodiment and Embodiment 1 is that the fixing screw 4 is a five-pointed screw. Of course, the fixing screw 4 can also be Use other types of screws as long as they have a fixing effect. Other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (8)

1. switch adaptor that is used for low-voltage complete switch equipment; It is characterized in that: it includes insulating fixing piece body, the copper bar of plugging into, L type copper bar, the fixed screw that is used for fixing at the through hole of the base plate of low-voltage complete switch equipment; The insulating fixing piece body offers the strip hole that is communicated with top and bottom; The copper bar of plugging into inserts in the strip hole; The end of bottom that the copper bar of plugging into is positioned at the base plate of low-voltage complete switch equipment is used to connect power supply circuits; The end at top that the copper bar of plugging into is positioned at the base plate of low-voltage complete switch equipment is fixedly connected with an end of L type copper bar through fixed screw, and the other end of L type copper bar is used for inserting the electrical installation of low-voltage complete switch equipment and is electrically connected with electrical installation.

2. the switch adaptor that is used for low-voltage complete switch equipment according to claim 1; It is characterized in that: said insulating fixing piece body offers the buckling groove that is used to connect and fix; The width of said buckling groove and the thickness of said base plate coupling just can be fixed in the through hole of said base plate said insulating fixing piece body.

3. the switch adaptor that is used for low-voltage complete switch equipment according to claim 1; It is characterized in that: said insulating fixing piece body offers and is used for first screw hole that is fixedly connected with the base plate of low-voltage complete switch equipment; Be provided with first screw in first screw hole, first screw is a hexagon socket head cap screw.

4. the switch adaptor that is used for low-voltage complete switch equipment according to claim 1; It is characterized in that: said insulating fixing piece body is provided with and is used to compress second screw of copper bar of plugging into; The insulating fixing piece body offers second screw hole with second screw coupling; The second screw hole internal fixation has the nut with second screw coupling, and second screw is a hexagon socket head cap screw.

5. according to any described switch adaptor that is used for low-voltage complete switch equipment of claim 1 to 4; It is characterized in that: said insulating fixing piece body is the L type; It comprises vertical component effect, horizontal part; Vertical position is in the bottom of the base plate of low-voltage complete switch equipment, and horizontal position is in the top of the base plate of low-voltage complete switch equipment.

6. the switch adaptor that is used for low-voltage complete switch equipment according to claim 5 is characterized in that: the said copper bar of plugging into, L type copper bar all offer the screw that supplies fixed screw to pass.

7. the switch adaptor that is used for low-voltage complete switch equipment according to claim 6 is characterized in that: said fixed screw is a hex(agonal)screw.

8. the switch adaptor that is used for low-voltage complete switch equipment according to claim 6 is characterized in that: said fixed screw is a pentagonal screw.

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