Electrical safety devices

Abstract

The present invention provides an electrical safety device, comprising: a housing; a first connector and a second connector, the first connector and the second connector being connected to two ends of an external circuit respectively; a fuse link, the fuse link being movably arranged in an accommodating cavity; the fuse link comprising a base band, a plurality of conductive bands and a plurality of fuse bands, the plurality of conductive bands being fixed on the base band at intervals along the extension direction of the base band, and any two adjacent conductive bands being connected by a fuse band; wherein one conductive band of the two adjacent conductive bands is electrically connected to the first connector, and the other conductive band is electrically connected to the second connector; and a switch device. The present invention arranges a movable fuse link to cooperate with the first connector and the second connector respectively, and when the fuse band is blown, the fuse link is movably adjusted to achieve rapid replacement of the fuse band, thereby ensuring timely recovery of the circuit, and having high replacement efficiency and safety.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical safety devices, and in particular to an electrical safety device. Background Art

[0002] An electrical safety device is a device that controls the opening and closing of a circuit, and can quickly disconnect the circuit in an emergency to ensure safety. Existing electrical safety devices usually connect a fuse in series in the circuit (for example, a common fuse blowing device). When the current or voltage in the circuit increases abnormally, the fuse will generate a high temperature, and the fuse connected in the circuit (i.e., the fuse) will be blown to disconnect the circuit. Since the fuse itself cannot be restored after it is blown, it is necessary to replace the fuse in the fuse in time to ensure the subsequent connectivity and protection of the circuit. Existing replacement of fuses usually adopts a manual replacement method, which is time-consuming and labor-intensive to replace fuses individually, has low replacement efficiency, is not conducive to the timely recovery of the circuit, and may cause safety accidents during manual replacement. Summary of the invention

[0003] The invention provides an electrical safety device to solve the problems of low efficiency and safety in manual replacement of fuses in the prior art.

[0004] In order to solve the above problems, the present invention provides an electrical safety device, comprising: a shell, which is fixedly arranged; the shell has a accommodating cavity; a first connector and a second connector, the first connector and the second connector are both inserted into the accommodating cavity and are arranged side by side on the shell, and the first connector and the second connector are respectively connected to the two ends of the external circuit; a fuse link, the fuse link can be movably arranged in the accommodating cavity; the fuse link includes a base band, a plurality of conductive bands and a plurality of fuse bands, the plurality of conductive bands are fixed on the base band at intervals along the extension direction of the base band, and any two adjacent conductive bands are connected by a fuse band; wherein, one of the two adjacent conductive bands is electrically connected to the first connector, and the other conductive band is electrically connected to the second connector; when the fuse link is moved, the fuse bands correspondingly connected to the first connector and the second connector can be replaced; a switch device, the switch device is used to control the connection between the fuse link and the first connector and the second connector.

[0005] Furthermore, the switch device includes a pressing band structure, which is movably arranged in the accommodating cavity; the fuse link is arranged between the pressing band structure and the first connector and the second connector; the pressing band structure has a crimping state and a separation state. In the crimping state, the pressing band structure presses the fuse link, and the fuse link is in contact with the first connector and the second connector, and the external circuit forms a closed circuit; in the separation state, the fuse link is separated from the first connector and the second connector.

[0006] Furthermore, the belt pressing structure is a metal structure, and the belt pressing structure is elastically arranged in the accommodating cavity; the switch device also includes a magnetic attraction device, and the magnetic attraction device controls the belt pressing structure to be in a crimped state or a separated state through electromagnetic force.

[0007] Furthermore, the magnetic attraction device includes an electromagnet, which is arranged on the shell and located between the first connector and the second connector; the pressing belt structure includes a pressing plate and an elastic member, and the pressing plate is movably connected to the shell through the elastic member; the fuse connecting belt is located between the pressing plate and the electromagnet, and the electromagnet controls the pressing plate to be in a crimped state or a separated state; the pressing plate is insulated from the fuse connecting belt.

[0008] Furthermore, the base band is made of elastic insulating material.

[0009] Furthermore, the electrical safety device also includes a driving device, which is used to control the movement of the fusible link in the accommodating cavity.

[0010] Furthermore, the driving device includes: a motor, which is fixedly arranged in the accommodating cavity; a first rotating wheel and a second rotating wheel, which are both rotatably arranged in the accommodating cavity; the second rotating wheel is connected to the rotating shaft of the motor; wherein the two ends of the fusible connecting belt are respectively wound around the first rotating wheel and the second rotating wheel, and are insulated from the first rotating wheel and the second rotating wheel; the motor controls the fusible connecting belt to move from the first rotating wheel to the second rotating wheel by driving the second rotating wheel to rotate.

[0011] Furthermore, the electrical safety device also includes a control device, which is electrically connected to the drive device and the switch device respectively, and is used to control the operation of the drive device and the switch device.

[0012] Furthermore, the electrical safety device also includes an alarm, which is arranged on the shell and is used to detect the blowing of a fuse between the first connector and the second connector. When the blowing of the fuse is detected, the alarm sends out an alarm message.

[0013] Furthermore, the shell is made of insulating material.

[0014] Applying the technical solution of the present invention, the present invention provides an electrical safety device, comprising: a shell, fixedly arranged; the shell has a accommodating cavity; a first connector and a second connector, the first connector and the second connector both penetrate into the accommodating cavity and are arranged side by side on the shell, the first connector and the second connector are respectively connected to the two ends of the external circuit; a fuse link, the fuse link can be movably arranged in the accommodating cavity; the fuse link comprises a base band, a plurality of conductive bands and a plurality of fuse bands, the plurality of conductive bands are fixed on the base band at intervals along the extension direction of the base band, and any two adjacent conductive bands are connected by a fuse band; wherein one of the two adjacent conductive bands is electrically connected to the first connector, and the other conductive band is electrically connected to the second connector; when the fuse link is moved, the fuse bands correspondingly connected to the first connector and the second connector are replaceable; a switch device, the switch device is used to control the connection between the fuse link and the first connector and the second connector. The present invention sets a specific structure of the fuse link and matches the movable fuse link with the first connector and the second connector respectively. When the fuse link blows, the fuse link is adjusted movably to achieve rapid replacement of the fuse link, thereby ensuring timely recovery of the circuit and high replacement efficiency and safety. The switch device is set to ensure reliable connection between the fuse link and the first connector and the second connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A partial structural schematic diagram of an electrical safety device provided by an embodiment of the present invention is shown;

[0017] Figure 2 A partial structural top view of a fusible link strip provided by an embodiment of the present invention is shown;

[0018] Figure 3 A cross-sectional view of a fusible link provided by an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram showing the cooperation between the driving device and the fusible connection belt provided in an embodiment of the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Shell;

[0022] 20. A first connector;

[0023] 30. Second connector;

[0024] 40. Fuse link tape; 41. Base tape; 42. Conductive tape; 43. Fuse tape;

[0025] 50. switch device; 51. belt pressing structure; 511. pressing plate; 52. magnetic attraction device; 521. electromagnet;

[0026] 60. Driving device; 61. First rotating wheel; 62. Second rotating wheel. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 4 As shown, an embodiment of the present invention provides an electrical safety device, comprising: a housing 10, fixedly arranged; the housing 10 has a receiving cavity; a first connector 20 and a second connector 30, both of which penetrate into the receiving cavity and are arranged side by side on the housing 10, and the first connector 20 and the second connector 30 are respectively connected to two ends of an external circuit; a fuse connection strip 40, the fuse connection strip 40 is movably arranged in the receiving cavity; the fuse connection strip 40 includes a base strip 41, a plurality of conductive strips 42 and a plurality of fuse strips 43, and the plurality of conductive strips 42 are arranged along The extension direction of the base band 41 is fixed at intervals on the base band 41, and any two adjacent conductive bands 42 are connected by a fuse band 43; wherein, one of the two adjacent conductive bands 42 is electrically connected to the first connector 20, and the other conductive band 42 is electrically connected to the second connector 30; when the fuse connecting band 40 is moved, the fuse band 43 correspondingly connected to the first connector 20 and the second connector 30 can be replaced; a switch device 50, the switch device 50 is used to control the connection between the fuse connecting band 40 and the first connector 20 and the second connector 30.

[0029] By applying the technical solution of the present invention, the present invention sets a specific structure of the fuse link 40, and respectively cooperates the movable fuse link 40 with the first connector 20 and the second connector 30. When the fuse link 43 blows, the fuse link 43 can be quickly replaced by movably adjusting the fuse link 40, thereby ensuring timely recovery of the circuit, and high replacement efficiency and safety. The switch device 50 is set to ensure reliable connection between the fuse link 40 and the first connector 20 and the second connector 30.

[0030] It should be noted that: in a specific embodiment of the present invention, the fuse link 40 is arranged above the first connector 20 and the second connector 30, and the movement of the fuse link 40 can be achieved by linear motion along a specific groove opened in the accommodating cavity to achieve the purpose of replacing the fuse belt 43 corresponding to the first connector 20 and the second connector 30. In actual operation, the fuse link 40 can be driven to move by pulling the base belt 41 manually or by a power machine.

[0031] like Figure 1 As shown, the switch device 50 includes a pressing belt structure 51, which is movably arranged in the accommodating cavity; the fusible connecting belt 40 is arranged between the pressing belt structure 51 and the first connector 20 and the second connector 30; the pressing belt structure 51 has a crimping state and a separation state. In the crimping state, the pressing belt structure 51 presses the fusible connecting belt 40, and the fusible connecting belt 40 abuts against the first connector 20 and the second connector 30, and the external circuit forms a closed circuit; in the separation state, the fusible connecting belt 40 is separated from the first connector 20 and the second connector 30. By setting the pressing belt structure 51, the reliable connection between the fusible connecting belt 40 and the first connector 20 and the second connector 30 is further guaranteed, and the separation of the fusible connecting belt 40 from the first connector 20 and the second connector 30 is guaranteed in the separation state. In this way, the smooth movement of the fusible connecting belt 40 is achieved.

[0032] Specifically, the belt pressing structure 51 is a metal structure, and the belt pressing structure 51 is elastically arranged in the accommodating cavity; the switch device 50 also includes a magnetic attraction device 52, and the magnetic attraction device 52 controls the belt pressing structure 51 to be in a crimped state or a separated state through electromagnetic force. By providing the belt pressing structure 51 and the magnetic attraction device 52, the overall miniaturization of the switch device 50 is ensured, the cost is reduced, and the working reliability of the switch device 50 is ensured.

[0033] like Figure 1 As shown, the magnetic attraction device 52 includes an electromagnet 521, which is arranged on the housing 10 and is located between the first connector 20 and the second connector 30; the pressure belt structure 51 includes a pressure plate 511 and an elastic member, and the pressure plate 511 is movably connected to the housing 10 through the elastic member; the fuse connection belt 40 is located between the pressure plate 511 and the electromagnet 521, and the electromagnet 521 controls the pressure plate 511 to be in a crimped state or a separated state; the pressure plate 511 is insulated from the fuse connection belt 40. By setting the pressure plate 511, the elastic member and the electromagnet 521, the miniaturization and lightness of the switch device 50 as a whole are further ensured, and by using the common magnetic attraction structure (i.e., the pressure plate 511 and the electromagnet 521 cooperate), it is convenient for the subsequent large-scale popularization and production of electrical safety devices; by setting the pressure plate 511 to be insulated from the fuse connection belt 40, the overall safety is further ensured and the occurrence of leakage is reduced.

[0034] It should be noted that: in a specific embodiment of the present invention, the electromagnet 521 adopts the existing electromagnet structure, that is, the electromagnet 521 generates a magnetic force to attract the pressure plate 511 when it is energized, ensuring that the pressure plate 511 firmly presses the fuse link 40 onto the first connector 20 and the second connector 30. After the electromagnet 521 is powered off, the magnetic attraction disappears, and the pressure plate 511 is separated from the contact with the fuse link 40 under the action of the elastic force of the elastic part. The fuse link 40 is separated from the first connector 20 and the second connector 30, and the external circuit is powered off, which is convenient for the subsequent movement of the fuse link 40.

[0035] Specifically, Figure 2 and Figure 3 As shown, the base band 41 is made of elastic insulating material. This arrangement ensures the overall deformability and safety of the fusible link band 40. The fusible link band 40 can be configured as a flexible structure as a whole, so that the fusible link band 40 can be rolled and unfolded for easy storage or transportation.

[0036] Specifically, the electrical safety device further includes a driving device 60, which is used to control the movement of the fusible link 40 in the accommodating cavity. By providing the driving device 60, the fusible link 40 is moved instead of manually, which ensures the convenience of moving the fusible link 40 and avoids possible safety accidents when the fusible link 40 is moved manually.

[0037] like Figure 4 As shown, the driving device 60 includes: a motor, which is fixedly arranged in the accommodating cavity; a first rotating wheel 61 and a second rotating wheel 62, which are both rotatably arranged in the accommodating cavity; the second rotating wheel 62 is connected to the rotating shaft of the motor; wherein, the two ends of the fusible connecting belt 40 are respectively wound on the first rotating wheel 61 and the second rotating wheel 62, and are insulated from the first rotating wheel 61 and the second rotating wheel 62; the motor drives the second rotating wheel 62 to rotate, and controls the fusible connecting belt 40 to move from the first rotating wheel 61 to the second rotating wheel 62. By arranging that the two ends of the fusible connecting belt 40 are respectively wound on the first rotating wheel 61 and the second rotating wheel 62, the space in the accommodating cavity is saved, the miniaturization and simplification of the electrical safety device as a whole are ensured, and the working reliability of the driving device 60 is ensured.

[0038] Alternatively, the fusible connecting band 40 is a linear structure, and the driving device 60 is a linear motion mechanism, such as a gear rack structure, a nut screw structure, etc., and the position change of the fusible connecting band 40 is achieved through linear motion.

[0039] Specifically, the electrical safety device further includes a control device, which is electrically connected to the drive device 60 and the switch device 50, respectively, and is used to control the operation of the drive device 60 and the switch device 50. By setting up the control device, effective adjustment of the electrical safety device is ensured. In actual use, the control device can be used to realize remote control of the electrical safety device by the staff.

[0040] The control process (i.e., the working principle) of the control device is as follows: under the condition that the fuse strip 43 connected between the first connector 20 and the second connector 30 is blown, the control device controls the switch device 50 to disconnect the fuse strip 40 from the first connector 20 and the second connector 30, and then controls the drive device 60 to move the fuse strip 40 by the length of the fuse strip 43; then controls the switch device 50 to connect the two conductive strips 42 at both ends of the unblown fuse strip 43 on the fuse strip 40 to the first connector 20 and the second connector 30, respectively, and the external circuit re-forms a closed circuit.

[0041] Specifically, the electrical safety device further includes an alarm, which is disposed on the housing 10 and is used to detect the fusing of the fuse belt 43 between the first connector 20 and the second connector 30. When the fuse belt 43 is detected to be fusing, the alarm sends an alarm message. By providing the alarm, timely reminders to the staff are ensured when the external circuit is abnormal. The alarm specifically includes a sensor for detecting the fusing of the fuse belt 43 and a speaker for sending an alarm message.

[0042] In actual application, the alarm can remotely send an alarm message to the staff's smart terminal and other electronic devices to remind them that the external circuit has been disconnected. The staff can check the condition of the external circuit in time according to the alarm information. After eliminating the circuit problem that caused the fuse to blow, the control device controls the drive device 60 to quickly connect the intact fuse in the fuse link 40 between the first connector 20 and the second connector 30 to restore the connectivity of the external circuit, and control the switch device 50 to press and fix the fuse link 40, so that the replacement work can be completed quickly and safely.

[0043] Specifically, the housing 10 is made of insulating material. By setting the housing 10 to be made of insulating material, the safety of the electrical safety device is further guaranteed, and leakage of the electrical safety device is avoided.

[0044] It should be noted that in actual use, in order to save costs, the shell 10 may not use insulating materials. It can meet safety requirements by simply providing an insulating sleeve to wrap the outside of the first connector 20 and the second connector 30 respectively to ensure that the first connector 20 and the second connector 30 are respectively insulated from the shell 10.

[0045] In summary, the present invention provides an electrical safety device. By setting a specific structure of a fuse link 40 and respectively cooperating the movable fuse link 40 with the first connector 20 and the second connector 30, when the fuse link 43 blows, the fuse link 43 can be quickly replaced by movably adjusting the fuse link 40, thereby ensuring timely recovery of the circuit, and high replacement efficiency and safety; by setting a switch device 50, reliable connection between the fuse link 40 and the first connector 20 and the second connector 30 is ensured.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0048] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrical safety device, characterized in that: include: A housing (10) is fixedly arranged; the housing (10) has a receiving cavity; A first connector (20) and a second connector (30), wherein the first connector (20) and the second connector (30) are both inserted into the accommodating cavity and are arranged side by side on the housing (10), and the first connector (20) and the second connector (30) are respectively connected to two ends of an external circuit; a fusible connection strip (40), the fusible connection strip (40) being movably arranged in the accommodating cavity; the fusible connection strip (40) comprising a base strip (41), a plurality of conductive strips (42) and a plurality of fuse strips (43); the plurality of conductive strips (42) are fixed on the base strip (41) at intervals along the extension direction of the base strip (41), and any two adjacent conductive strips (42) are connected by one fuse strip (43); One of the two adjacent conductive strips (42) is electrically connected to the first connector (20), and the other conductive strip (42) is electrically connected to the second connector (30); when the fuse strip (40) is moved, the fuse strip (43) correspondingly connected to the first connector (20) and the second connector (30) can be replaced; A switch device (50), the switch device (50) being used to control the connection between the fusible connection strip (40) and the first connector (20) and the second connector (30); The switch device (50) comprises a pressing belt structure (51), wherein the pressing belt structure (51) is movably arranged in the accommodating cavity; the fusible connecting belt (40) is arranged between the pressing belt structure (51) and the first connector (20) and the second connector (30); the pressing belt structure (51) has a crimping state and a separation state. In the crimping state, the pressing belt structure (51) presses the fusible connecting belt (40), and the fusible connecting belt (40) abuts against the first connector (20) and the second connector (30), so that the external circuit forms a closed circuit; in the separation state, the fusible connecting belt (40) is separated from the first connector (20) and the second connector (30).

2. The electrical safety device according to claim 1, characterized in that: The belt pressing structure (51) is a metal structure, and the belt pressing structure (51) is elastically arranged in the accommodating cavity; the switch device (50) also includes a magnetic attraction device (52), and the magnetic attraction device (52) controls the belt pressing structure (51) to be in the crimping state or the separation state through electromagnetic force.

3. The electrical safety device according to claim 2, characterized in that: The magnetic attraction device (52) comprises an electromagnet (521), and the electromagnet (521) is arranged on the shell (10) and located between the first connector (20) and the second connector (30); the pressing belt structure (51) comprises a pressing plate (511) and an elastic member, and the pressing plate (511) is movably connected to the shell (10) through the elastic member; the fusible connecting belt (40) is located between the pressing plate (511) and the electromagnet (521), and the electromagnet (521) controls the pressing plate (511) to be in the pressing state or the separation state; the pressing plate (511) is insulated from the fusible connecting belt (40).

4. The electrical safety device according to claim 1, characterized in that: The base band (41) is made of elastic insulating material.

5. The electrical safety device according to claim 1, characterized in that: The electrical safety device further comprises a driving device (60), wherein the driving device (60) is used to control the movement of the fusible connection strip (40) in the accommodating cavity.

6. The electrical safety device according to claim 5, characterized in that: The driving device (60) comprises: A motor, wherein the motor is fixedly disposed in the accommodating cavity; A first rotating wheel (61) and a second rotating wheel (62), wherein the first rotating wheel (61) and the second rotating wheel (62) are both rotatably disposed in the accommodating cavity; the second rotating wheel (62) is connected to a rotating shaft of the motor; The two ends of the fusible connecting belt (40) are respectively wound around the first rotating wheel (61) and the second rotating wheel (62), and are insulated from the first rotating wheel (61) and the second rotating wheel (62); the motor drives the second rotating wheel (62) to rotate, thereby controlling the fusible connecting belt (40) to move from the first rotating wheel (61) to the second rotating wheel (62).

7. The electrical safety device according to claim 5, characterized in that: The electrical safety device further comprises a control device, which is electrically connected to the drive device (60) and the switch device (50) respectively and is used to control the operation of the drive device (60) and the switch device (50).

8. The electrical safety device according to claim 1, characterized in that: The electrical safety device further comprises an alarm, which is arranged on the housing (10) and is used to detect the blowing of the fuse strip (43) between the first connector (20) and the second connector (30). When the fuse strip (43) is detected to be blown, the alarm issues an alarm message.

9. The electrical safety device according to claim 1, characterized in that: The shell (10) is made of insulating material.

Images