All-insulation line drop-out fuse

Abstract

The invention relates to the technical field of fuses, in particular to an all-insulated circuit drop-out fuse, which comprises a bearing assembly, a fuse assembly and a fuse assembly, and is characterized in that the bearing assembly comprises a bearing shell and a bearing groove formed in the inner side of the bearing shell; the supporting assembly comprises a first supporting ring arranged at one end of the bearing shell, a second supporting ring arranged at one end of the bearing shell and an insulating shell arranged in the bearing groove, and the bearing assembly further comprises a wire inlet end arranged above the bearing shell and a wire outlet end arranged below the bearing shell; according to the invention, the whole fuse is tightly wrapped by the bearing shell, so that the influence of wind power factors can be remarkably reduced, the effect of blowing components in the fuse by wind power can be reduced, and the upper moving contact in the fuse can be in stable contact with the static contact piece. The advantage ensures the normal work of the fuse tube, and further improves the working stability of the fuse tube.

Description

Technical Field

[0001] The invention relates to the technical field of fuses, in particular to a fully insulated line drop-out type fuse. Background Art

[0002] A drop-out fuse is a power protection device, which is mainly used to protect circuits from overload or short circuit to ensure the safety of electrical equipment and personnel. A drop-out fuse uses the fuse inside the fuse to automatically disconnect the circuit when an overload or short circuit occurs. The moving contacts at both ends of the fuse tube are fastened by the fuse (melt). When the short-circuit current passes through the fuse and melts, an arc is generated. The steel paper tube lining the fuse tube generates a large amount of gas under the action of the arc. Since the upper end of the fuse tube is sealed, the gas sprays to the lower end to blow out the arc. After the fuse melts, the upper and lower moving contacts of the fuse tube lose the tightening force of the fuse. Under the action of the fuse tube's own gravity and the upper and lower static contact springs, the fuse tube falls rapidly, disconnecting the circuit and cutting off the faulty section of the line or the faulty equipment.

[0003] The upper and lower moving and static contact conductors of the drop-out fuses currently used in the power system are in an exposed state, which makes it subject to many potential risks in practical applications. On the one hand, it is easy to be caught by foreign objects, trees, etc., which may cause a short circuit between phases or to the ground of the fuse. On the other hand, the drop-out fuses located in the outdoor environment are exposed to the influence of natural factors for a long time and are prone to rust. Once rust occurs, it will cause poor contact of the contacts, leading to overheating, causing the fuse tube to fuse into other components, resulting in the failure of the fuse tube to fall off normally, thereby losing its due protection function. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a fully insulated line drop-out fuse, comprising:

[0006] A bearing assembly includes a bearing shell and a bearing slot provided inside the bearing shell; and

[0007] The support assembly comprises a first support ring arranged at one end of the bearing shell, a second support ring arranged at one end of the bearing shell and an insulating shell arranged in the bearing groove.

[0008] As a preferred solution of the fully insulated line drop-out fuse of the present invention, the bearing assembly further includes an incoming line terminal arranged above the bearing shell and an outgoing line terminal arranged below the bearing shell.

[0009] As a preferred solution of the fully insulated line drop-out fuse of the present invention, the bearing housing is inclined.

[0010] As a preferred solution of the fully insulated line drop-out fuse described in the present invention, the support assembly also includes an insulating bracket arranged between the first support ring and the second support ring, a connecting block is provided at one end of the insulating shell, a mounting bracket is provided at one end of the connecting block, a mounting hole is opened on the inner side of the mounting bracket, and a mounting plate is provided at one end of the mounting bracket.

[0011] As a preferred solution of the fully insulated line drop-out fuse of the present invention, the connecting block is in a ring shape.

[0012] As a preferred solution of the fully insulated line drop-out fuse described in the present invention, it also includes a closing component, which includes a connecting frame arranged in the supporting groove, an elastic member is provided on the inner side of the connecting frame, and the elastic member is a reset spring. A connecting piece is provided below the elastic member, and the connecting piece is connected to the connecting frame.

[0013] As a preferred solution of the fully insulated line drop-out fuse of the present invention, the lower end of the connecting piece is arranged as an inclined surface.

[0014] As a preferred solution of the fully insulated line drop-out fuse of the present invention, a fixing frame is provided in the bearing groove, a rotating shaft is provided between the fixing frames, a fuse tube is provided outside the rotating shaft, and a connecting contact is provided above the fuse tube.

[0015] As a preferred solution of the fully insulated line drop-out fuse of the present invention, an operating plate is provided at one end of the outer side of the fuse tube, a fixing ring is provided at one end of the operating plate, and a through groove is provided at one end of the inner side of the fixing ring.

[0016] As a preferred solution of the fully insulated line drop-out fuse of the present invention, a rotating block is provided in the bearing slot, a connecting ring is provided between the rotating block and the fuse tube, and a contact block is provided in the bearing slot.

[0017] The beneficial effects of the present invention are as follows: by tightly wrapping the entire fuse with the bearing shell, the influence of wind factors can be significantly reduced, and the effect of wind blowing the components inside the fuse can be reduced, so that the upper moving contact and the stationary contact piece inside the fuse can be in stable contact. This advantage ensures the normal operation of the fuse tube and further improves the working stability of the fuse tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 It is a diagram showing the overall components of the present invention.

[0020] Figure 2 It is a front view of the present invention.

[0021] Figure 3 It is a side view of the present invention.

[0022] Figure 4 This is a diagram showing the bearing assembly of the present invention.

[0023] Figure numbers: 100, bearing assembly; 101, bearing shell; 101a, bearing slot; 102, incoming line terminal; 103, outgoing line terminal; 200, supporting assembly; 201, first supporting ring; 202, second supporting ring; 203, connecting block; 203a, mounting bracket; 203a-1, mounting hole; 203a-2, mounting plate; 204, insulating bracket; 205, insulating shell; 300, closing assembly; 301, connecting frame; 301a, elastic member; 301b, connecting piece; 302, fixing frame; 303, fuse tube; 303a, connecting contact; 303b, operating panel; 304, rotating block; 304a, connecting ring; 305, contact block. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1, reference Figures 1 to 4, which is the first embodiment of the present invention, provides a fully insulated line drop-out fuse that can reduce damage to the fuse caused by natural factors.

[0028] Specifically, it includes a bearing assembly 100, including a bearing shell 101 and a bearing slot 101a opened inside the bearing shell 101; and,

[0029] The support assembly 200 includes a first support ring 201 disposed at one end of the bearing shell 101 , a second support ring 202 disposed at one end of the bearing shell 101 , and an insulating shell 205 disposed in the bearing groove 101 a .

[0030] The carrier assembly 100 further includes an inlet terminal 102 disposed above the carrier housing 101 and an outlet terminal 103 disposed below the carrier housing 101 .

[0031] The bearing shell 101 is inclined, wherein the bearing shell 101 has excellent waterproof performance, and its unique design can more effectively play a waterproof role, and the edge of the bearing shell 101 is inclined downward, which can effectively prevent the invasion of rainwater. This can prevent rainwater from accumulating on the surface of the fuse, thereby greatly improving the overall waterproof performance of the fuse, and even in severe weather conditions, it can ensure the normal operation of the fuse and reduce the risk of malfunction caused by rainwater intrusion.

[0032] Among them, an intelligent detection device is added to the carrying shell 101, and sensors such as gravity sensors and angle sensors can be set on the carrying slot 101a, and the remaining detection equipment is fixed inside the carrying shell 101. When the inclination angle of the carrying slot 101a changes, the gravity sensors and angle sensors transmit the detected signals to the sensor collection module on the carrying shell 101 to collect and analyze the information, and by controlling the operation of the 4G module, the processed information is transmitted to the remote monitoring center through the 4G module, so that the status of the fuse can be monitored in real time.

[0033] Among them, the intelligent detection device added to the bearing shell 101 also has remote control with self-learning ability. Through the control unit, temperature sensor and the structural design of the upper locking piece and the lower locking piece, the internal temperature of the fuse tube can be monitored through the temperature sensor, and the data can be transmitted to the control unit, which is uploaded to the cloud platform server by the wireless transmission module of the control unit to realize remote monitoring. By using the computer cluster, AI learning module and remote database of the cloud platform server, it can independently learn and judge or learn the dangerous critical temperature value of the drop-type fuse according to the historical fusing data. When the cloud platform server judges it as dangerous, it feeds back information to the control unit, and the control unit controls the electromagnet to energize, so that the fuse tube 303 overcomes the elastic force of the elastic part 301a and moves downward, so that the connecting contact 303a is separated from the connecting piece 301b, and the fuse tube 303 flips and falls, so as to achieve the purpose of safe power-off, thereby effectively improving the service life of the fuse and effectively improving the safety of use.

[0034] Usage process: By tightly wrapping the entire fuse with the bearing shell 101, the influence of wind factors can be significantly reduced. It can reduce the effect of wind blowing on the components inside the fuse, so that the upper moving contact and the static contact piece in the fuse can be in stable contact. This advantage ensures the normal operation of the fuse tube and further improves the working stability of the fuse tube. In a windy environment, the fuse can still maintain reliable performance and provide stable operation for the power system.

[0035] Example 2, reference Figures 1 to 4 , which is the second embodiment of the present invention, provides a fully insulated line drop-out fuse that can reduce fuse failures caused by contact with objects such as trees.

[0036] Specifically, it includes a support assembly 200 and an insulating bracket 204 arranged between a first support ring 201 and a second support ring 202, a connection block 203 is arranged at one end of an insulating housing 205, a mounting bracket 203a is arranged at one end of the connection block 203, a mounting hole 203a-1 is opened on the inner side of the mounting bracket 203a, and a mounting plate 203a-2 is arranged at one end of the mounting bracket 203a. The connection block 203 is in a ring shape. Among them, by using high-quality insulating materials to fully wrap the fuse, the overall insulation level of the line is greatly improved. This design can effectively prevent accidental touch by external objects and the influence of various interference factors.

[0037] Usage process: The carrying shell 101 wraps the drop-out fuse as a whole, so that the fuse is in an insulated state during operation, effectively preventing contact and interference from external objects, and the design ensures that when the drop-out fuse is pulled open or exited, the upper contact is insulated through a special insulation structure to maintain insulation when pulled open. The design of the insulation structure does not affect the fusing function of the drop-out fuse in the event of a fault. When a fault such as excessive current occurs, the fuse can be normally blown, cutting off the circuit and protecting the line and equipment.

[0038] Example 3, reference Figures 1 to 4 , which is the third embodiment of the present invention, and this embodiment provides a fully insulated line drop-out fuse that can achieve the effect of improving the safety of power supply.

[0039] Specifically, it also includes a closing component 300, which includes a connecting frame 301 arranged in the supporting groove 101a, an elastic member 301a is provided on the inner side of the connecting frame 301, and the elastic member 301a is a reset spring. A connecting piece 301b is provided below the elastic member 301a, and the connecting piece 301b is connected to the connecting frame 301.

[0040] The lower end of the connecting piece 301b is configured as an inclined surface.

[0041] A fixing frame 302 is disposed in the bearing groove 101 a , a rotating shaft is disposed between the fixing frames 302 , a fuse tube 303 is disposed outside the rotating shaft, and a connecting contact 303 a is disposed above the fuse tube 303 .

[0042] An operating plate 303 b is provided at one end of the outer side of the fuse tube 303 , a fixing ring is provided at one end of the operating plate 303 b , and a through groove is provided at one end of the inner side of the fixing ring.

[0043] A rotating block 304 is provided in the bearing groove 101a, a connecting ring 304a is provided between the rotating block 304 and the fuse tube 303, and a contact block 305 is provided in the bearing groove 101a. Although the bearing shell 101 exists, it will not affect the normal operation of the switch rod at all, ensuring the convenience and reliability of operation. This fully insulated line drop-out fuse provides a strong guarantee for the stable operation of the power system, effectively reduces the possibility of faults, and improves the safety and reliability of power supply.

[0044] Usage process: When the fuse needs to be closed, the operating plate 303b is hooked and driven to push up, and the operating plate 303b drives the fuse tube 303 to push up, and the fuse tube 303 drives the top connection contact 303a to contact the connection piece 301b. When it needs to be disconnected, the operating plate 303b is pulled downward, so that when the fuse is in the open or withdrawn state, the connection contact 303a and the fuse tube 303 still maintain good insulation performance, so that the fuse can also ensure insulation in the open state, and at the same time, it will not affect its proper function when it is blown. Whether in normal operation or in fault conditions, it can provide reliable protection for the safety of the line.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully insulated line drop-out fuse, characterized in that: include, A bearing assembly (100) comprises a bearing shell (101) and a bearing slot (101a) opened inside the bearing shell (101); and, The support assembly (200) comprises a first support ring (201) arranged at one end of the bearing shell (101), a second support ring (202) arranged at one end of the bearing shell (101), and an insulating shell (205) arranged in the bearing groove (101a).

2. The fully insulated line drop-out fuse according to claim 1, characterized in that: The bearing assembly (100) further comprises an input terminal (102) arranged above the bearing shell (101) and an output terminal (103) arranged below the bearing shell (101).

3. The fully insulated line drop-out fuse according to claim 2, characterized in that: The bearing shell (101) is inclined.

4. The fully insulated line drop-out fuse according to claim 3, characterized in that: The support assembly (200) further comprises an insulating bracket (204) arranged between the first support ring (201) and the second support ring (202); a connecting block (203) is arranged at one end of the insulating shell (205); a mounting bracket (203a) is arranged at one end of the connecting block (203); a mounting hole (203a-1) is arranged on the inner side of the mounting bracket (203a); and a mounting plate (203a-2) is arranged at one end of the mounting bracket (203a).

5. The fully insulated line drop-out fuse according to claim 4, characterized in that: The connection block (203) is in a ring shape.

6. The fully insulated line drop-out fuse according to claim 5, characterized in that: The invention also includes a closing component (300), wherein the closing component (300) includes a connecting frame (301) arranged in the bearing groove (101a), an elastic member (301a) is arranged on the inner side of the connecting frame (301), and the elastic member (301a) is a return spring. A connecting piece (301b) is arranged below the elastic member (301a), and the connecting piece (301b) is connected to the connecting frame (301).

7. The fully insulated line drop fuse according to claim 6, characterized in that: The lower end of the connecting piece (301b) is arranged as an inclined surface.

8. The fully insulated line drop fuse according to claim 7, characterized in that: A fixing frame (302) is arranged inside the bearing groove (101a), a rotating shaft is arranged between the fixing frames (302), a fuse tube (303) is arranged outside the rotating shaft, and a connecting contact (303a) is arranged above the fuse tube (303).

9. The fully insulated line drop fuse according to claim 8, characterized in that: An operating plate (303b) is provided at one end of the outer side of the fuse tube (303), a fixing ring is provided at one end of the operating plate (303b), and a through groove is provided at one end of the inner side of the fixing ring.

10. The fully insulated line drop fuse according to claim 9, characterized in that: A rotating block (304) is provided in the bearing groove (101a), a connecting ring (304a) is provided between the rotating block (304) and the fuse tube (303), and a contact block (305) is provided in the bearing groove (101a).

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