Lightning arrester support and monitoring device

Abstract

The invention discloses a lightning arrester support and a monitoring device.A support body is formed by splicing and fixing a plurality of sub-supports, the splicing faces of the sub-supports are provided with containing grooves, and after all the sub-supports are spliced and fixed, all the containing grooves form a containing cavity which extends to the second end of the support body and is penetrated by a second mounting hole. And the accommodating cavity is used for accommodating other parts of the monitoring device except the shell. The support body is formed by splicing and fixing a plurality of sub-supports, the interior of the support body is spliced to form the containing cavity, the containing cavity is used for containing other parts of the monitoring device except the shell, and equivalently, the support body can be used as the shell of the monitoring device, so that a multi-support installation structure is effectively avoided, installation is simple, and bird damage prevention is facilitated.

Description

Technical Field

[0001] The present invention relates to a lightning arrester support and a monitoring device, belonging to the field of lightning arrester monitoring. Background Art

[0002] Installing zinc oxide lightning arresters is an important measure to protect the insulated lines of 10 kV distribution networks from lightning overvoltage attacks. Lightning arresters are generally installed through supports. The existing support is an insulating frame. In addition to installing the lightning arrester, when supporting a monitoring device, it will fix the installation support of the monitoring device. This multi-support installation is not only cumbersome to install, but also not conducive to preventing bird damage (that is, the multi-support structure is likely to allow birds to stay and build nests). Summary of the Invention

[0003] The present invention provides a lightning arrester support and a monitoring device, which solve the problems disclosed in the background art.

[0004] According to one aspect of the present disclosure, there is provided a lightning arrester support, including a support body. A first mounting hole is provided at the first end of the support body, and a second mounting hole is provided at the second end of the support body. A plurality of columns of annular reinforcing ribs are provided on the support body between the first mounting hole and the second mounting hole. The support body is a support body formed by splicing and fixing a plurality of sub-supports. Accommodating grooves are provided on the splicing surfaces of the plurality of sub-supports. After all the sub-supports are spliced and fixed, all the accommodating grooves form an accommodating cavity that extends to the second end of the support body and is penetrated by the second mounting hole. The accommodating cavity is used to accommodate the components of the monitoring device except the housing.

[0005] Further, the support body is a support body formed by splicing and fixing a first sub-support and a second sub-support, and the first sub-support and the second sub-support have the same structure; A first through hole is provided at the first end of the sub-support, a second through hole is provided at the second end of the sub-support, and an accommodating groove is provided on the first side surface of the sub-support. The accommodating groove extends to the second end of the first side surface and communicates with the second through hole; The first side surfaces of the first sub-support and the second sub-support are spliced and fixed. The accommodating grooves of the first sub-support and the second sub-support form an accommodating cavity. The first through holes of the first sub-support and the second sub-support form the first mounting hole, and the second through holes of the first sub-support and the second sub-support form the second mounting hole.

[0006] Further, the surface of the sub-support is coated with a hydrophobic layer.

[0007] Further, the top surface of the support body is an arc convex surface.

[0008] Further, a section of the top of the reinforcing rib is triangular.

[0009] According to another aspect of the present disclosure, there is provided a monitoring device, and the housing of the device uses the above-mentioned lightning arrester support.

[0010] Further, the second mounting hole is divided into two sections by the accommodating cavity. The upper section is used to connect the lightning arrester, and the lower section is used to connect the disconnector. A monitoring main board, a communication device, a power supply, a varistor variable resistor chip, and a lightning current monitoring pulse sensor are arranged in the accommodating cavity of the bracket. The varistor variable resistor chip is connected in series on the line between the lightning arrester and the disconnector. The lightning current monitoring pulse sensor is sleeved on the line between the lightning arrester and the disconnector. The monitoring main board is connected to the varistor variable resistor chip, the lightning current monitoring pulse sensor, the communication device, and the power supply.

[0011] Further, the line between the lightning arrester and the disconnector includes a conductive elastic member and a support electrode with a first conductive connecting member. The first conductive connecting member of the support electrode passes through the lower section of the second mounting hole to connect the disconnector. The varistor variable resistor chip is placed on the support electrode, and the conductive elastic member presses on the varistor variable resistor chip. One end of the conductive elastic member away from the varistor variable resistor chip is connected to the second conductive connecting member of the lightning arrester passing through the upper section of the second mounting hole.

[0012] Further, a lower conductive gasket is placed on the varistor variable resistor chip, and an upper conductive gasket is sleeved on the second conductive connecting member of the lightning arrester. The conductive elastic member presses between the upper conductive gasket and the lower conductive gasket.

[0013] Further, a charging interface is installed at the bottom of the bracket, and the charging interface is connected to the charging end of the power supply.

[0014] The beneficial effects achieved by the present invention: The bracket body of the present invention is formed by splicing and fixing a plurality of sub-brackets, and the inside of the bracket body is spliced into an accommodating cavity, which is used to accommodate the remaining components of the monitoring device except the housing. It is equivalent to using the bracket body as the housing of the monitoring device, thus effectively avoiding the multi-bracket installation structure, which is not only simple to install but also conducive to preventing bird damage. Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of the lightning arrester bracket; Figure 2 It is a cross-sectional view of the sub-bracket; Figure 3 It is a structural schematic diagram of the monitoring device; Figure 4 It is a structural schematic diagram of the bottom of the monitoring device.

[0016] In the figure: 1 - sub-bracket, 2 - accommodating groove, 3 - accommodating cavity, 4 - first through hole, 5 - second through hole, 6 - annular reinforcing rib, 7 - lightning arrester, 8 - upper conductive gasket, 9 - conductive elastic member, 10 - lower conductive gasket, 11 - varistor variable resistor chip, 12 - support electrode, 13 - lightning current monitoring pulse sensor, 14 - disconnector, 15 - monitoring main board, 16 - power supply, 17 - charging interface. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0018] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0019] At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship.

[0020] For technologies, methods, and devices known to those of ordinary skill in the relevant fields, they may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0021] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0022] It should be noted that similar symbols and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0023] At the same time, in the description of the embodiments of the present application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features In order to solve the problem that when the existing lightning arrester bracket is equipped with a monitoring device, it is necessary to fix the installation bracket of the monitoring device, resulting in cumbersome installation and being not conducive to preventing bird damage, the present application provides an improved lightning arrester bracket. Specifically, the bracket body is set as a bracket body formed by splicing multiple sub-brackets, and an accommodation cavity is spliced inside the bracket body. The accommodation cavity is used to accommodate the remaining components of the monitoring device except the housing. It is equivalent to using the bracket body as the housing of the monitoring device, thus effectively avoiding a multi-bracket installation structure, which is not only simple to install but also conducive to preventing bird damage.

[0024] See Figure 1 , Figure 1FIG. 0 is a schematic structural diagram of a lightning arrester support provided by an embodiment of the present application. The appearance of this lightning arrester support is similar to that of the existing lightning arrester support, both including a support body. A first mounting hole is opened at the first end of the support body, and a second mounting hole is opened at the second end of the support body. A plurality of columns of annular reinforcing ribs 6 are fixed on the support body between the first mounting hole and the second mounting hole. The support body is a support body formed by splicing and fixing a plurality of sub-supports 1. A receiving groove 2 is opened on the splicing surface of several sub-supports 1. After all the sub-supports 1 are spliced and fixed, all the receiving grooves 2 form a receiving cavity 3 that extends to the second end of the support body and is penetrated by the second mounting hole. The receiving cavity 3 is used to accommodate the remaining components of the monitoring device except the housing.

[0025] It should be noted that, similar to the existing lightning arrester support, the first mounting hole can be defined as a ground connection mounting hole for connecting to the ground connection, and the second mounting hole can be defined as a lightning arrester 7 mounting hole, that is, the lightning arrester 7 is connected through the second mounting hole. When matching with the gap, connection plates for fixing the discharge gap will also be installed on the first mounting hole and the second mounting hole. The second conductive connector at the bottom end of the lightning arrester 7 will pass through the second mounting hole. Specifically, a conductive screw passes through the second mounting hole, and a disconnector 14 is sleeved on the screw, and then it is further fixed by bolts.

[0026] It should be noted that, in order to lock the lightning arrester 7, it is often fixed by a positioning pin, positioning steel balls, etc. after the screw of the lightning arrester 7 is screwed in.

[0027] In order to simplify the generation and installation, in some embodiments, the support body is a support body formed by splicing and fixing a first sub-support and a second sub-support, and the first sub-support and the second sub-support have the same structure; a first through hole 4 is opened at the first end of the sub-support 1, a second through hole 5 is opened at the second end of the sub-support 1, and a receiving groove 2 is opened on the first side surface of the sub-support 1. The receiving groove 2 extends to the second end of the first side surface and communicates with the second through hole 5; the first side surfaces of the first sub-support and the second sub-support are spliced and fixed, the receiving grooves 2 of the first sub-support and the second sub-support form a receiving cavity 3, the first through holes 4 of the first sub-support and the second sub-support form a first mounting hole, and the second through holes 5 of the first sub-support and the second sub-support form a second mounting hole.

[0028] It should be noted that the sub-support 1 is made of epoxy resin fiberglass, which is resistant to ultraviolet rays, anti-aging and fireproof and flame-retardant. In order to prevent water accumulation, a hydrophobic layer will be coated on the surface of the sub-support 1. For example, an oil film in the form of a lotus leaf can be coated on the surface to increase the hydrophobic performance so that rainwater cannot spread but can only flow down as water droplets. See Figure 2 , the top surface of the support body can also be set as an arc convex surface, which can further prevent water droplets from gathering and can only flow down. Similarly, since the support body is formed by splicing and fixing a first sub-support and a second sub-support with the same structure, the bottom surface of the support body is also set as an arc convex surface, making the overall support body relatively round and easy for water droplets to flow down.

[0029] It should be noted that the reinforcing rib is generally close to the first mounting hole. It is not only a reinforcing rib for resisting bending deformation, but also can be used for accurately positioning the gap of the lightning arrester 7. In some embodiments, a section of the top of the reinforcing rib is set as a triangle, which not only increases the creepage distance, but also has the functions of preventing birds from building nests, arc isolation and arc blowing; similarly, the opposite bottom is also set as a triangle.

[0030] It should be noted that the above splicing and fixing is specifically tightening by screws at the splicing position. And in order to ensure the sealing of the accommodating cavity 3, a sealing rubber can be installed at the corresponding splicing position. Similarly, when installing the lightning arrester 7, etc. in the second mounting hole, corresponding sealing rings should be set for sealing to prevent external water vapor from entering the accommodating cavity 3.

[0031] The above-mentioned bracket body is formed by splicing and fixing a plurality of sub-brackets 1, and the inside of the bracket body is spliced into an accommodating cavity 3. The accommodating cavity 3 is used to accommodate the remaining components of the monitoring device except the housing. This bracket body can not only fix the lightning arrester 7, but also when it is matched with the monitoring device, the remaining components of the monitoring device except the housing can be accommodated in the accommodating cavity 3 of the bracket body. It is equivalent to using the bracket body as the housing of the monitoring device, thus effectively avoiding the multi-bracket installation structure, which is not only simple to install, but also beneficial to preventing bird damage.

[0032] See Figure 3 , Figure 3 is a schematic diagram of a monitoring device provided by an embodiment of the present application. The housing of this monitoring device is the above-mentioned lightning arrester bracket.

[0033] It should be noted that there are many types of current on-line monitoring devices for lightning arresters, such as voltage monitoring type, current monitoring type, etc. The structures of different types are slightly different. The monitoring device here can be any kind of monitoring device, as long as the housing adopts the above-mentioned lightning arrester bracket, and the structure wrapped inside the housing remains unchanged.

[0034] In order to ensure the compact internal structure of the lightning arrester bracket and thus minimize the size of the monitoring device as much as possible, in some embodiments, a monitoring main board 15, a communication device, a power supply 16, a varistor variable resistance chip 11 and a lightning current monitoring pulse sensor 13 are arranged in the accommodating cavity 3 of the bracket. The second mounting hole is divided into two sections by the accommodating cavity 3. The upper section is used to connect the lightning arrester 7, and the lower section is used to connect the disconnector 14. The varistor variable resistance chip 11 is connected in series on the line between the lightning arrester 7 and the disconnector 14. The lightning current monitoring pulse sensor 13 is sleeved on the line between the lightning arrester 7 and the disconnector 14. The monitoring main board 15 is connected to the varistor variable resistance chip 11, the lightning current monitoring pulse sensor 13, the communication device and the power supply 16.

[0035] It should be noted that the communication device can adopt a flexible antenna (not shown in the figure). The flexible antenna can be housed in a smaller space, thereby further reducing the size of the monitoring device.

[0036] The monitoring main board 15 mainly includes a processor, which is mainly used to collect the leakage current from the varistor 11 and the lightning current from the lightning current monitoring pulse sensor 13, and transmit the collected leakage current to the background or terminal through the flexible antenna. To ensure the stable installation of the monitoring main board 15, two opposite convex ribs can be fixed in the accommodation cavity 3 to clamp the monitoring main board 15 through the two convex ribs, or a single convex rib can be fixed in the accommodation cavity 3 to clamp the monitoring main board 15 through the convex rib and the inner wall of the accommodation cavity 3. Of course, other fixing structures can also be used, such as being adhesively fixed in the accommodation cavity 3.

[0037] To ensure reliable connection between the lightning arrester 7 and the disconnector 14, in some embodiments, the line between the lightning arrester 7 and the disconnector 14 is not a wire, but includes a conductive elastic member 9 and a support electrode 12 with a first conductive connecting member. The first conductive connecting member of the support electrode 12 passes through the lower section of the second mounting hole to connect the disconnector 14. The varistor 11 is placed on the support electrode 12, and the conductive elastic member is pressed on the varistor 11. The end of the conductive elastic member away from the varistor 11 is connected to the second conductive connecting member of the lightning arrester 7 passing through the upper section of the second mounting hole.

[0038] It should be noted that the above-mentioned conductive elastic member can be a conductive lightweight spring, which reduces the weight while ensuring the pressure. The above-mentioned first conductive connecting member and the second conductive connecting member are similar, both using conductive screws, and can be directly installed in the mounting hole through nuts to fix the lightning arrester 7 and the disconnector 14 to the bracket.

[0039] In the above line, the current (i.e., the leakage current and the lightning current) sequentially passes through the lightning arrester 7, the conductive elastic member 9, the varistor 11, the support electrode 12, the disconnector 14, and finally grounds through the disconnector 14. The varistor 11 measures the leakage current. The lightning current monitoring pulse sensor 13 is similar to a current transformer and is sleeved on the bolt of the support electrode 12 to collect the lightning current.

[0040] To prevent reliable conduction of the conductive elastic member 9 and ensure the safety of the pressed part, in some embodiments, a lower conductive gasket 10 is placed on the varistor 11, and a conductive gasket 8 is sleeved on the second conductive connecting member of the lightning arrester 7. The conductive elastic member 9 is pressed between the upper conductive gasket 8 and the lower conductive gasket 10.

[0041] It should be noted that the power supply 16 supplies power to all the electrical components in the accommodation cavity 3. A lithium battery can be used. In the accommodation cavity 3, by setting the position of the monitoring main board 15, the accommodation cavity 3 can be divided into two intervals. The interval far from the second mounting hole only houses the power supply 16, and other components are arranged in the other interval.

[0042] To ensure the power of the power supply 16, refer to Figure 4 , in some embodiments, a charging interface 17 is installed at the bottom of the bracket. The charging interface 17 is connected to the charging end of the power supply 16. For example, solar charging is adopted, and this interface can be a solar panel interface.

[0043] The above-mentioned monitoring device uses a lightning arrester bracket as the housing, effectively avoiding the multi-bracket installation structure. It is not only simple to install, but also beneficial to prevent bird damage. And from the outside, the whole monitoring device is simple and efficient, and its safety and strength are incomparable with those of ordinary plastic boxes. There is no difference in installation from that of an ordinary lightning arrester 7.

[0044] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A lightning arrester bracket, comprising a bracket body, a first mounting hole is provided at the first end of the bracket body, a second mounting hole is provided at the second end of the bracket body, and a plurality of rows of annular reinforcing ribs are provided on the bracket body between the first mounting hole and the second mounting hole, characterized in that: The bracket body is formed by splicing and fixing multiple sub-brackets. The splicing surfaces of several sub-brackets are provided with accommodating grooves. After all the sub-brackets are spliced ​​and fixed, all the accommodating grooves constitute an accommodating cavity extending to the second end of the bracket body and penetrated by the second mounting hole. The accommodating cavity is used to accommodate the remaining components of the monitoring device except the shell.

2. The bracket according to claim 1, characterized in that: The bracket body is a bracket body formed by splicing and fixing a first sub-bracket and a second sub-bracket, and the first sub-bracket and the second sub-bracket have the same structure; A first through hole is formed at the first end of the sub-bracket, a second through hole is formed at the second end of the sub-bracket, and a receiving groove is formed at the first side surface of the sub-bracket, the receiving groove extends to the second end of the first side surface and is connected to the second through hole; The first side surfaces of the first sub-bracket and the second sub-bracket are spliced ​​and fixed, the receiving grooves of the first sub-bracket and the second sub-bracket constitute a receiving cavity, the first through holes of the first sub-bracket and the second sub-bracket constitute a first mounting hole, and the second through holes of the first sub-bracket and the second sub-bracket constitute a second mounting hole.

3. The bracket according to claim 1, characterized in that: The surface of the sub-support is coated with a hydrophobic layer.

4. The bracket according to claim 1, characterized in that: The top surface of the bracket body is an arc-shaped convex surface.

5. The bracket according to claim 1, characterized in that: A section at the top of the rib is triangular.

6. A monitoring device, characterized in that: The housing of the device adopts the bracket described in any one of claims 1 to 5.

7. The device according to claim 6, characterized in that The second mounting hole is divided into two sections by the accommodating cavity, the upper section is used to connect the lightning arrester, and the lower end is used to connect the disconnector. The accommodating cavity of the bracket is provided with a monitoring mainboard, a communication device, a power supply, a varistor and a lightning current monitoring pulse sensor. The varistor is connected in series on the line between the lightning arrester and the disconnector, and the lightning current monitoring pulse sensor is sleeved on the line between the lightning arrester and the disconnector. The monitoring mainboard is connected to the varistor, the lightning current monitoring pulse sensor, the communication device and the power supply.

8. The device according to claim 7, characterized in that The line between the lightning arrester and the disconnector includes a conductive elastic part and a supporting electrode with a first conductive connecting part. The first conductive connecting part of the supporting electrode passes through the lower section of the second mounting hole to connect to the disconnector. The varistor is placed on the supporting electrode. The conductive elastic part is pressed on the varistor. One end of the conductive elastic part away from the varistor is connected to the second conductive connecting part of the lightning arrester passing through the upper section of the second mounting hole.

9. The device according to claim 8, characterized in that A lower conductive pad is placed on the varistor, an upper conductive pad is sleeved on the second conductive connector of the arrester, and a conductive elastic member is pressed between the upper conductive pad and the lower conductive pad.

10. The device according to claim 7, characterized in that A charging interface is installed at the bottom of the bracket, and the charging interface is connected to the charging end of the power supply.

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