Fireproof bus device

Abstract

The utility model discloses a fireproof bus device which comprises a bus body, a bus duct body, an anti-burning sheath, an adjusting block and a first elastic body. Wherein the bus body is arranged in the bus duct body; the bus duct body is provided with a plurality of exhaust holes; the whole body formed by the bus body and the bus duct body is arranged in the anti-burning sheath; the anti-burning sheath forms a plurality of air pressure chambers at the periphery of the bus duct body, and one side, facing the bus duct body, of each air pressure chamber is provided with a chamber window; the adjusting block is arranged in the cavity window and is in sliding connection with the anti-burning sheath; the first elastic body is arranged in the air pressure chamber and is connected with the adjusting block so as to bias the adjusting block to be close to the bus duct body; and the air pressure chamber is provided with an air flow channel communicated with the outside. The fireproof bus device has the beneficial effect that the fireproof bus device which can prevent the hollow structure from losing efficacy according to the airflow change caused by combustion is provided.

Description

Technical Field

[0001] The present application relates to the technical field of busbar devices, and more particularly, to a fire-resistant busbar device. Background Art

[0002] Busbars are commonly used conductive devices in various high-voltage electrical equipment such as switchgear cabinets. In related technologies, in order to have fire-resistant performance, existing fire-resistant busbars usually wrap a fireproof board outside the busbar body.

[0003] In some other related technologies, the above problems can be prevented by using a hollow structure between the protection board and the busbar. However, such a hollow design will cause the air pressure around the protection board to change due to heat, and the hollow structure cannot be maintained, resulting in the failure of the protection. Summary of the Utility Model

[0004] The content part of the present application is used to briefly introduce concepts, which will be described in detail in the following specific implementation part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] Some embodiments of the present application provide a fire-resistant busbar device to solve the technical problems mentioned in the above background art part.

[0006] As a first aspect of the present application, some embodiments of the present application provide a fire-resistant busbar device, including: a busbar body, a busbar trough, a fireproof sheath, an adjustment block, and a first elastic body; wherein, the busbar body is arranged in the busbar trough; the busbar trough is provided with a plurality of exhaust holes; the whole formed by the busbar body and the busbar trough is arranged in the fireproof sheath; the fireproof sheath forms a plurality of air pressure chambers around the busbar trough, and a chamber window is arranged on one side of the air pressure chamber facing the busbar trough; the adjustment block is arranged in the chamber window and is slidably connected with the fireproof sheath; the first elastic body is arranged inside the air pressure chamber and is connected with the adjustment block to bias the adjustment block close to the busbar trough; the air pressure chamber is provided with an air flow channel communicating with the outside. Further, reinforcing ribs are arranged inside the fireproof sheath, and the reinforcing ribs form the air pressure chamber.

[0007] Further, the inner wall of the fireproof sheath has a rectangular contour, and one air pressure chamber is arranged at each inner wall.

[0008] Further, the air pressure chamber is configured as a rectangular space.

[0009] Further, the busbar trough is formed with a positioning groove; the adjustment block is provided with a positioning protrusion that can be inserted into the positioning groove.

[0010] Further, the elastic member has elastic laminations.

[0011] Further, the fire-resistant busbar device further includes: a one-way valve core and a second elastic body; wherein, the inner wall of the anti-burning sheath is provided with a one-way channel communicating with the air pressure chamber; the one-way valve core is slidably disposed in the one-way channel, and at least part of the second elastic body is received in the one-way channel to bias the one-way valve core to close the one-way channel.

[0012] Further, the fire-resistant busbar device further includes: a sealing ring; the sealing ring surrounds the adjusting block.

[0013] Further, an installation groove is formed around the adjusting block, and at least part of the sealing ring is received in the installation groove.

[0014] Further, the anti-burning sheath and the adjusting block are made of flame-retardant materials.

[0015] The beneficial effect of the present application is that: a fire-resistant busbar device is provided that can prevent the failure of the hollow structure according to the airflow change caused by combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the elements and elements are not necessarily drawn to scale.

[0018] In the drawings:

[0019] Figure 1 is a schematic structural diagram of a fire-resistant busbar device according to an embodiment of the present application;

[0020] Figure 2 is an exploded structural diagram of a fire-resistant busbar device according to an embodiment of the present application;

[0021] Figure 3 is a cross-sectional structural diagram of a fire-resistant busbar device according to an embodiment of the present application;

[0022] Figure 4 is Figure 3 a partial enlarged view of

[0023] Figure 5 is a schematic structural diagram of an adjusting block and a sealing ring according to an embodiment of the present application.

[0024] Meanings of the reference numerals in the drawings:

[0025] 100, fire-resistant busbar device; 110, busbar body; 120, busbar trough; 121, positioning groove; 122, exhaust hole; 130, anti-burning sheath; 131, air pressure chamber; 132, chamber window; 133, air flow channel; 134, reinforcing rib; 135, one-way channel; 140, adjusting block; 141, positioning protrusion; 142, installation groove; 150, first elastic body; 160, one-way valve core; 170, second elastic body; 180, sealing ring. Detailed implementation manners

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the accompanying drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0027] In addition, it should be noted that for the sake of convenience of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0029] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0030] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0031] The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] Referring to Figures 1 to 5 As shown, the fire-resistant busbar device 100 of the present application includes: a busbar body 110, a busbar trough 120, an anti-burning sheath 130, an adjusting block 140, and a first elastic body 150.

[0033] Referring to Figure 1 and Figure 2As shown in the figure, the busbar body 110 is arranged inside the busbar housing 120; the whole formed by the busbar body 110 and the busbar housing 120 is arranged in the anti-burning sheath 130; the busbar housing 120 is provided with a plurality of exhaust holes 122; the anti-burning sheath 130 forms a plurality of air pressure chambers 131 around the busbar housing 120, and a chamber window 132 is provided on the side of the air pressure chamber 131 facing the busbar housing 120; the adjusting block 140 is arranged in the chamber window 132 and is slidably connected to the anti-burning sheath 130; the first elastic body 150 is arranged inside the air pressure chamber 131 and is connected to the adjusting block 140 to bias the adjusting block 140 close to the busbar housing 120; the air pressure chamber 131 is provided with an air flow channel 133 communicating with the outside.

[0034] With such a solution, when the busbar body 110 burns due to a short circuit or the like, the expanded gas presses on the adjusting block 140 in the chamber window 132 through the exhaust hole 122, so that the adjusting block 140 will retract and continue to exhaust to the outside through the air pressure chamber 131, thus not impacting the remaining hollow parts and ensuring the fire protection performance.

[0035] As a preferred solution, the position of the exhaust hole 122 is correspondingly arranged with the position of the chamber window 132 or the adjusting block 140.

[0036] It should be noted that the chamber window 132 can penetrate from head to tail, or can be arranged only in some parts. This helps to reduce the strength requirement for the adjusting block 140.

[0037] Refer to Figure 3 and Figure 4 As shown in the figure, in some embodiments of the present application, reinforcing ribs 134 are arranged inside the anti-burning sheath 130, and the reinforcing ribs 134 form the air pressure chambers 131. The inner wall of the anti-burning sheath 130 has a rectangular contour, and an air pressure chamber 131 is arranged at each inner wall. The air pressure chamber 131 is constructed as a rectangular space. The busbar housing 120 forms a positioning groove 121; the adjusting block 140 is provided with a positioning protrusion 141 that can be embedded in the positioning groove 121.

[0038] In some embodiments of the present application, the elastic member has elastic laminations. The fire-resistant busbar device 100 further includes: a one-way valve core 160 and a second elastic body 170; wherein, the inner wall of the anti-burning sheath 130 is provided with a one-way channel 135 communicating with the air pressure chamber 131; the one-way valve core 160 is slidably arranged in the one-way channel 135, and the second elastic body 170 is at least partially accommodated in the one-way channel 135 to bias the one-way valve core 160 to close the one-way channel 135.

[0039] Refer to Figure 5As shown, in some embodiments of the present application, the fire-resistant busbar device 100 further includes: a sealing ring 180; the sealing ring 180 surrounds the outer edge of the adjusting block 140. An installation groove 142 is formed around the adjusting block 140, and the sealing ring 180 is at least partially received in the installation groove 142. In some embodiments of the present application, the anti-burning sheath 130 and the adjusting block 140 are made of flame-retardant materials.

[0040] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the embodiments of the present disclosure that have similar functions.

Claims

1. A fire-resistant busbar device, characterized in that, the fire-resistant busbar device includes: a busbar body, a busbar trough, a fire-proof sheath, an adjusting block, and a first elastic body; wherein, the busbar body is arranged in the busbar trough; the busbar trough is provided with a plurality of exhaust holes; the whole formed by the busbar body and the busbar trough is arranged in the fire-proof sheath; the fire-proof sheath forms a plurality of air pressure chambers around the busbar trough, and a chamber window is arranged on one side of the air pressure chamber facing the busbar trough; the adjusting block is arranged in the chamber window and is slidably connected with the fire-proof sheath; the first elastic body is arranged inside the air pressure chamber and is connected with the adjusting block to bias the adjusting block close to the busbar trough; the air pressure chamber is provided with an air flow channel communicating with the outside.

2. The fire-resistant busbar device according to claim 1, characterized in that, reinforcing ribs are arranged inside the fire-proof sheath, and the reinforcing ribs form the air pressure chamber.

3. The fire-resistant busbar device according to claim 2, characterized in that, the inner wall of the fire-proof sheath has a rectangular contour, and one air pressure chamber is arranged at each inner wall.

4. The fire-resistant busbar device according to claim 3, characterized in that, the air pressure chamber is configured as a rectangular space.

5. The fire-resistant busbar device according to claim 4, characterized in that, the busbar trough is formed with a positioning groove; the adjusting block is provided with a positioning protrusion that can be embedded in the positioning groove.

6. The fire-resistant busbar device according to claim 5, characterized in that, the first elastic body has elastic laminations.

7. The fire-resistant busbar device according to any one of claims 1 to 6, characterized in that, the fire-resistant busbar device further includes: a one-way valve core and a second elastic body; wherein, the inner wall of the fire-proof sheath is provided with a one-way channel communicating with the air pressure chamber; the one-way valve core is slidably arranged in the one-way channel, and the second elastic body is at least partially accommodated in the one-way channel to bias the one-way valve core to close the one-way channel.

8. The fire-resistant busbar device according to any one of claims 1 to 6, characterized in that, the fire-resistant busbar device further includes: a sealing ring; the sealing ring surrounds the adjusting block.

9. The fire-resistant busbar device according to claim 8, characterized in that, an installation groove is formed around the adjusting block, and the sealing ring is at least partially accommodated in the installation groove.

10. The fire-resistant busbar device according to any one of claims 1 to 6, characterized in that, the fire-proof sheath and the adjusting block are made of flame-retardant materials.

Images