A plug-in connection type jet fuse controller

Abstract

The utility model discloses a plug-in connection type jet-type fuse controller, including a fuse assembly, the fuse assembly including a fuse body, a controller fixing part and a sealing part, the controller fixing part including a fixing plate, a plurality of slide bars and a plurality of reset springs, the plurality of slide bars are distributed in a circular array and fixedly connected to the bottom of the fixing plate, the plurality of reset springs are respectively sleeved on the top of the slide bars, the sealing part includes a sealing plate, a plurality of connecting frames, a plurality of sliding sleeves, a plurality of positioning frames and a positioning groove provided at the bottom of the positioning frame. The utility model seals the inner cavity of the spring ejector pin connector and the fuse body through an insulating elastic component, effectively preventing dust and rainwater from entering, greatly improving the service life of the fuse body, and preventing the spring ejector pin connector from being contaminated when the controller assembly is replaced, resulting in its inability to be used normally.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a plug-in connection type jet-type fuse controller. Background Art

[0002] Intelligent jet-type fuses mainly use the controller at the bottom to detect overload and short circuit in the circuit, and quickly cut off the circuit when necessary to protect equipment and systems from damage. They can not only adjust and set the protection characteristics according to specific application requirements to provide more accurate protection, but also diagnose and indicate faults, identify the type of fault, and provide fault information to operators through indicator lights or other signals. However, since the fuse is often in a high temperature state, the controller connected to it needs to be maintained frequently. When replacing the bottom controller of the existing jet-type fuse, the circuit needs to be shut down, and the operation and maintenance cost is relatively high.

[0003] Authorization announcement No. CN213716830U discloses a plug-in connection type jet fuse controller, which can directly unplug the controller and replace it with a new controller at the same time, realizing the replacement of the controller without power outage, fundamentally changing the current situation that power automation complete sets need to be replaced by power outage when secondary equipment fails, simplifying operation and maintenance, improving power supply reliability, and facilitating replacement of the controller. However, technicians in this field found that the fuse still has certain inconveniences when using it: First, when replacing the controller, the insulating rod assembly needs to be used to squeeze the elastic component, which causes the fuse as a whole to be not a sealed structure, and when the fuse is running, arcs are easily generated, and these arcs may leak out and cause safety accidents. Secondly, when the controller is replaced, the contacts (spring pin connectors) in contact with the controller are exposed to the outside, which are easily damaged by external pollution and have a low service life. Therefore, technicians in this field provide a plug-in connection type jet fuse controller to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a plug-in connection type jet-type fuse controller is proposed. The plug-in connection type jet-type fuse controller seals the spring ejector connector and the inner cavity of the fuse body through an insulating elastic component, effectively preventing dust and rainwater from entering, greatly improving the service life of the fuse body, and preventing the spring ejector connector from being contaminated and unable to be used normally when the controller component is replaced.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plug-in type jet fuse controller comprises a fuse assembly, wherein the fuse assembly comprises a fuse body, a controller fixing part and a sealing part, wherein the controller fixing part comprises a fixing plate, a plurality of slide bars and a plurality of reset springs, wherein the plurality of slide bars are distributed in a circular array and fixedly connected to the bottom of the fixing plate, wherein the plurality of reset springs are respectively sleeved on the top of the slide bars, wherein the sealing part comprises a sealing plate, a plurality of connecting frames, a plurality of sliding sleeves, a plurality of positioning frames and a positioning groove provided at the bottom of the positioning frame, wherein the plurality of connecting frames are distributed in a circular array and fixedly connected to the outer side wall of the sealing plate, The plurality of sliding sleeves are respectively fixedly connected to the tops of the plurality of connecting frames, the plurality of positioning frames are respectively fixedly connected to the outer side walls of the plurality of sliding sleeves, the plurality of sliding sleeves are respectively limitedly slidably connected to the outer sides of the plurality of sliding rods, and the reset spring is arranged between the sliding sleeve and the fixed plate, a controller assembly is clamped in the positioning groove, the controller assembly comprises a controller body, a fixing frame and a plurality of positioning rods, the fixing frame is fixedly connected to the top of the controller body, the plurality of positioning rods are distributed in a circular array and fixedly connected to the upper end surface of the lower side wall of the fixing frame, and the plurality of positioning rods are clamped in the plurality of positioning grooves;

[0007] Through the above technical solution, when installing the controller assembly, the positioning rod on the controller assembly will be stuck in the positioning groove, and then the controller assembly will be pushed upward. The positioning rod will push the seal to slide along the sliding rod. When removing the controller assembly, the controller assembly is pulled downward, and the seal moves downward as a whole under the drive of the return spring.

[0008] Further, two spring ejector pin connectors are arranged at the bottom of the fuse body, and two insulating elastic components are installed at the bottom of the sealing disk, and the two spring ejector pin connectors are arranged inside the two insulating elastic components respectively;

[0009] Through the above technical solution, the spring pin connectors are respectively the power supply CT and the measurement CT in the fuse body. When the controller component is installed and the seal rises, the spring pin connector squeezes the insulating elastic component downward, thereby exposing the spring pin connector under the seal. When the seal drops, the insulating elastic component loses the squeezing of the spring pin connector and quickly resets, thereby sealing the spring pin connector and the inner cavity of the fuse body, effectively preventing dust and rainwater from entering, greatly improving the service life of the fuse body, and preventing the spring pin connector from being contaminated and unable to be used normally when the controller component is replaced.

[0010] Furthermore, two measuring interfaces are provided on the measuring metal plate on the upper side of the controller body, and the two measuring interfaces are used in conjunction with two spring ejector connectors respectively;

[0011] Through the above technical solution, when the spring pin connector is inserted into the measurement interface, the power CT and the measurement CT of the spring pin connector contact the metal connecting plate in the controller body, thereby monitoring and controlling the fuse body.

[0012] Furthermore, a plurality of inflatable fixing parts distributed in a circumferential array are installed at the top of the fixing plate near the outer periphery, and the inflatable fixing parts include an inflatable tube, a hook-shaped groove, an inflatable fixing bag, an inflating tube and a fixing pin, the inflatable fixing bag is fixed to the bottom of the inflatable tube, the hook-shaped groove is arranged outside the inflatable tube, the inflating tube is slidably connected inside the inflating tube, and the fixing pin is fixed to the outer side wall of the inflating tube and is limitedly slidably connected inside the hook-shaped groove;

[0013] Through the above technical solution, when the controller assembly needs to be fixed, the fixing pin is turned out from the upper groove of the hook-shaped groove, and then the air pump is pressed downward. Under the squeezing of the air pump, the inflatable fixing bag at the bottom expands, and then the fixing pin is turned into the lower groove body of the hook-shaped groove to complete the fixation. The fixing structure is easy to operate and the fixing effect is ideal. Since the fixing structure adopts a fully sealed design, the arc generated by the fuse is not easy to leak from the fixing structure, eliminating the possibility of safety accidents.

[0014] Furthermore, a plurality of fixing holes distributed in a circumferential array are provided on the upper side wall of the fixing frame, and a plurality of the inflatable fixing bags are filled in the fixing holes;

[0015] Through the above technical solution, when the inflatable fixing bag expands inside the fixing hole, the inflatable fixing bag will be stuck in the fixing hole, so that the controller component and the fuse component are fixed.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, the insulating elastic component seals the spring pin connector and the inner cavity of the fuse body, effectively preventing dust and rainwater from entering, greatly improving the service life of the fuse body, and preventing the spring pin connector from being contaminated and unable to be used normally when replacing the controller component.

[0018] 2. In the utility model, when it is necessary to fix the controller assembly, the fixing pin is rotated out from the upper groove of the hook-shaped groove, and then the air pump is pressed downward. Under the squeezing of the air pump, the inflatable fixing bag at the bottom expands, and then the fixing pin is rotated into the lower groove body of the hook-shaped groove to complete the fixation. The fixing structure is easy to operate and has an ideal fixing effect. Since the fixing structure adopts a fully sealed design, the arc generated by the fuse is not easy to leak from the fixing structure, eliminating the possibility of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A three-dimensional diagram of a plug-in connection type jet fuse controller proposed by the utility model;

[0020] Figure 2 This is a first exploded view of a plug-in connection type jet fuse controller proposed by the utility model;

[0021] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0022] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 This is a second exploded view of a plug-in connection type jet fuse controller proposed by the utility model;

[0024] Figure 6 This is a third exploded view of a plug-in connection type jet fuse controller proposed by the utility model.

[0025] Legend:

[0026] 1. Fuse assembly; 2. Controller assembly; 11. Fuse body; 12. Controller fixing part; 121. Fixing plate; 122. Slide rod; 123. Reset spring; 13. Seal; 131. Sealing plate; 132. Connecting frame; 133. Sliding sleeve; 134. Positioning frame; 135. Positioning groove; 14. Insulating elastic component; 15. Spring ejector connector; 16. Inflatable fixing part; 161. Inflating tube; 162. Hook-shaped groove; 163. Inflatable fixing bag; 164. Inflating tube; 165. Fixing pin; 21. Controller body; 22. Fixing frame; 23. Positioning rod; 24. Fixing hole; 25. Measuring interface. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5The utility model provides an embodiment: a plug-in connection type injection type fuse controller, including a fuse assembly 1, the fuse assembly 1 includes a fuse body 11, a controller fixing part 12 and a sealing part 13, the controller fixing part 12 includes a fixing plate 121, a plurality of slide bars 122 and a plurality of reset springs 123, the plurality of slide bars 122 are distributed in a circular array and fixedly connected to the bottom of the fixing plate 121, and the plurality of reset springs 123 are respectively sleeved on the top of the slide bars 122, the sealing part 13 includes a sealing plate 131, a plurality of connecting frames 132, a plurality of sliding sleeves 133, a plurality of positioning frames 134 and a positioning groove 135 opened at the bottom of the positioning frame 134, the plurality of connecting frames 132 are distributed in a circular array and fixedly connected to the outer side wall of the sealing plate 131, the plurality of sliding sleeves 133 are respectively fixedly connected to the top of the plurality of connecting frames 132, and the plurality of positioning frames 134 are respectively fixedly connected to the plurality of sliding sleeves On the outer wall of 133, several sliding sleeves 133 are respectively limited and slidably connected to the outer sides of several sliding rods 122, and the return spring 123 is arranged between the sliding sleeve 133 and the fixed plate 121. The controller component 2 is clamped in the positioning groove 135. The controller component 2 includes a controller body 21, a fixing frame 22 and several positioning rods 23. The fixing frame 22 is fixedly connected to the top of the controller body 21. Several positioning rods 23 are distributed in a circular array and fixedly connected to the upper end surface of the lower side wall of the fixing frame 22. Several positioning rods 23 are clamped in several positioning grooves 135. When installing the controller component 2, the positioning rods 23 on the controller component 2 will be clamped in the positioning groove 135, and then the controller component 2 is pushed upward. The positioning rods 23 will push the seal 13 to slide along the sliding rod 122. When disassembling the controller component 2, the controller component 2 is pulled downward, and the seal 13 moves downward as a whole under the drive of the return spring 123.

[0029] Reference Figure 2 and Figure 6Two spring pin connectors 15 are arranged at the bottom of the fuse body 11, and two insulating elastic components 14 are installed at the bottom of the sealing disk 131. The two spring pin connectors 15 are respectively arranged inside the two insulating elastic components 14. Two measuring interfaces 25 are provided on the upper measuring metal plate of the controller body 21. The two measuring interfaces 25 are respectively used in conjunction with the two spring pin connectors 15. When the spring pin connector 15 is inserted into the measuring interface 25, the power CT and the measuring CT of the spring pin connector 15 are in contact with the metal connecting plate in the controller body 21, thereby monitoring and controlling the fuse body 11. The spring pin connector 15 is respectively For the power-taking CT and the measuring CT in the fuse body 11, when the controller component 2 is installed and the seal 13 rises, the spring pin connector 15 squeezes the insulating elastic component 14 downward, thereby exposing the spring pin connector 15 under the seal 13. When the seal 13 descends, the insulating elastic component 14 loses the squeezing of the spring pin connector 15 and quickly resets, thereby sealing the spring pin connector 15 and the inner cavity of the fuse body 11, effectively preventing dust and rainwater from entering, greatly improving the service life of the fuse body 11, and preventing the spring pin connector 15 from being contaminated and unable to be used normally when the controller component 2 is replaced.

[0030] Reference Figure 2 , Figure 3 and Figure 5 A plurality of inflatable fixing members 16 distributed in a circumferential array are installed at the top of the fixing plate 121 near the periphery. The inflatable fixing member 16 includes an inflatable tube 161, a hook-shaped groove 162, an inflatable fixing bag 163, an air-inflating tube 164 and a fixing pin 165. The inflatable fixing bag 163 is fixed to the bottom of the inflatable tube 161. The hook-shaped groove 162 is provided on the outside of the inflatable tube 161. The air-inflating tube 164 is slidably connected to the inflatable tube 161. The fixing pin 165 is fixed to the outer wall of the air-inflating tube 164 and is limitedly slidably connected to the hook-shaped groove 162. A plurality of fixing holes 24 distributed in a circumferential array are provided on the upper side wall of the fixing frame 22. A plurality of inflatable fixing bags 163 are filled in the fixing holes 24. When fixing is required, When fixing the controller component 2, the fixing pin 165 is turned out from the upper groove of the hook-shaped groove 162, and then the air pump 164 is pressed downward. Under the squeezing of the air pump 164, the inflatable fixing bag 163 at the bottom expands. When the inflatable fixing bag 163 expands inside the fixing hole 24, the inflatable fixing bag 163 will be stuck in the fixing hole 24, so that the controller component 2 and the fuse component 1 are fixed. Then, the fixing pin 165 is rotated into the lower groove body of the hook-shaped groove 162 to complete the fixation. The fixing structure is easy to operate and the fixing effect is ideal. Since the fixing structure adopts a fully sealed design, the arc generated by the fuse is not easy to leak from the fixing structure, thereby eliminating the possibility of safety accidents.

[0031] Working principle: When installing the controller component 2, the positioning rod 23 on the controller component 2 will be stuck in the positioning groove 135, and then the controller component 2 will be pushed upward. The positioning rod 23 will push the seal 13 to slide along the slide rod 122, and the spring thimble connector 15 will squeeze the insulating elastic component 14 downward, so that the spring thimble connector 15 is exposed under the seal 13. The spring thimble connector 15 is respectively the power supply CT and the measurement CT in the fuse body 11. When the spring thimble connector 15 is inserted into the measurement interface 25, the power supply CT and the measurement CT of the spring thimble connector 15 contact the metal connecting plate in the controller body 21, so as to monitor and control the fuse body 11. When disassembling the controller component 2, pull the controller component 2 downward, and the seal 13 moves downward as a whole under the drive of the reset spring 123, and the insulating elastic component 14 loses the spring. After the ejector pin connector 15 is squeezed, it is quickly reset, and then the spring ejector pin connector 15 and the inner cavity of the fuse body 11 are sealed, which effectively prevents dust and rainwater from entering, greatly improves the service life of the fuse body 11, and prevents the spring ejector pin connector 15 from being contaminated and unable to be used normally when replacing the controller component 2. When the controller component 2 needs to be fixed, the fixing pin 165 is turned out from the upper groove of the hook-shaped groove 162, and then the air pump 164 is pressed downward. Under the squeezing of the air pump 164, the inflatable fixing bag 163 at the bottom expands, and then the fixing pin 165 is rotated into the lower groove body of the hook-shaped groove 162 to complete the fixation. The fixing structure is easy to operate and the fixing effect is relatively ideal. Since the fixing structure adopts a fully sealed design, the arc generated by the fuse is not easy to leak from the fixing structure, thereby eliminating the possibility of safety accidents.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-in connection type ejection type fuse controller, comprising a fuse assembly (1), characterized in that: The fuse assembly (1) comprises a fuse body (11), a controller fixing member (12) and a sealing member (13); the controller fixing member (12) comprises a fixing plate (121), a plurality of slide bars (122) and a plurality of return springs (123); the plurality of slide bars (122) are distributed in a circular array and are fixedly connected to the bottom of the fixing plate (121); the plurality of return springs (123) are respectively sleeved on the top of the slide bars (122); the sealing member (13) comprises a sealing plate (131), a plurality of connecting frames (132), a plurality of sliding sleeves (133), a plurality of positioning frames (134) and a positioning groove (135) provided at the bottom of the positioning frame (134); the plurality of connecting frames (132) are distributed in a circular array and are fixedly connected to the outer wall of the sealing plate (131); the plurality of sliding sleeves (133) are sleeved on the top of the sliding bars (122); ) are respectively fixedly connected to the top of a plurality of connecting frames (132), a plurality of the positioning frames (134) are respectively fixedly connected to the outer side walls of a plurality of sliding sleeves (133), a plurality of the sliding sleeves (133) are respectively limitedly slidably connected to the outer sides of a plurality of sliding rods (122), and the return spring (123) is arranged between the sliding sleeve (133) and the fixed plate (121), a controller component (2) is clamped in the positioning groove (135), and the controller component (2) includes a controller body (21), a fixing frame (22) and a plurality of positioning rods (23), the fixing frame (22) is fixedly connected to the top of the controller body (21), a plurality of the positioning rods (23) are distributed in a circular array and fixedly connected to the upper end surface of the lower side wall of the fixing frame (22), and a plurality of the positioning rods (23) are clamped in the plurality of positioning grooves (135).

2. A plug-in connection type ejection type fuse controller according to claim 1, characterized in that: Two spring pin connectors (15) are arranged at the bottom of the fuse body (11), and two insulating elastic components (14) are installed at the bottom of the sealing disk (131), and the two spring pin connectors (15) are arranged inside the two insulating elastic components (14) respectively.

3. A plug-in connection type ejection type fuse controller according to claim 2, characterized in that: Two measuring interfaces (25) are provided on the measuring metal plate on the upper side of the controller body (21), and the two measuring interfaces (25) are used in conjunction with two spring ejector pin connectors (15) respectively.

4. The plug-in connection type ejection type fuse controller according to claim 1, characterized in that: A plurality of inflatable fixing parts (16) distributed in a circumferential array are installed at the top of the fixing plate (121) near the outer periphery. The inflatable fixing parts (16) include an inflatable tube (161), a hook-shaped groove (162), an inflatable fixing bag (163), an air-inflating tube (164) and a fixing pin (165). The inflatable fixing bag (163) is fixed to the bottom of the inflatable tube (161), the hook-shaped groove (162) is provided on the outside of the inflatable tube (161), the air-inflating tube (164) is slidably connected in the inflatable tube (161), and the fixing pin (165) is fixed to the outer wall of the inflatable tube (164) and is slidably connected in the hook-shaped groove (162) in a limited manner.

5. The plug-in connection type ejection type fuse controller according to claim 4, characterized in that: A plurality of fixing holes (24) distributed in a circumferential array are provided on the upper side wall of the fixing frame (22), and a plurality of the inflatable fixing bags (163) are filled in the fixing holes (24).

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