A feed switch and its production process

Abstract

The present application relates to the technical field of feeder switches, and discloses a feeder switch, including a shell, a copper rod is arranged in the shell, a connecting piece is arranged on the copper rod, a conductive piece is sleeved on the connecting piece, the conductive piece and the connecting piece are fixed to each other by welding, and a heat shrink tube is coated on the conductive piece and the connecting piece. In the present application, the conductive piece and the connecting piece are fixed by welding, so that no bulge is generated between the conductive piece and the connecting piece, and no gap is generated between the heat shrink tube and the conductive piece, thereby reducing the air between the heat shrink tube and the conductive piece to break through the heat shrink tube; at the same time, the connection between the conductive piece and the connecting piece is not easy to generate an arc, thereby reducing the possible danger to the user during use and increasing the safety performance of the feeder switch when in use.

Description

Technical Field

[0001] The present application relates to the technical field of feed switches, and in particular to a feed switch and a production process thereof. Background Art

[0002] A feeder switch is a switch used to control and protect transmission lines in a power system. A copper rod is usually provided inside the feeder switch, through which current is transmitted inside the feeder switch, allowing electricity to be delivered to each feeder switch.

[0003] In the related art, the feed switch includes a shell, a copper rod is arranged in the shell, a connecting plate is arranged on the copper rod, a conductive plate is arranged on the connecting plate, the connecting plate and the conductive plate are fixedly connected by bolts, and the connection between the conductive plate and the connecting plate is covered with a heat shrink tube.

[0004] Since the connecting plate and the conductive plate are fixedly connected by bolts, the bolts protrude from the conductive plate and the connecting plate, so that there is a gap between the heat shrink tube and the conductive plate, resulting in poor protection effect of the heat shrink tube. On the one hand, it is easy to cause corrosion at the connection between the conductive plate and the connecting plate, and on the other hand, it is easy to cause arcing at the connection between the conductive plate and the connecting plate. Since the feeder switch is often used in mines, great danger may occur during use. Summary of the invention

[0005] In order to improve the problem of a gap between the heat shrink tube and the conductive sheet, the present application provides a feed switch and a production process thereof.

[0006] The present application provides a feed switch and a production process thereof, which adopts the following technical solution: A feed switch comprises a shell, wherein a copper rod is arranged in the shell, a connecting piece is arranged on the copper rod, a conductive piece is sleeved on the connecting piece, the conductive piece and the connecting piece are fixed to each other by welding, and the conductive piece and the connecting piece are covered with a heat shrink tube.

[0007] By adopting the above technical solution, the conductive sheet and the connecting sheet are fixed by welding, so that no bulge will be generated between the conductive sheet and the connecting sheet, and no gap will be generated between the heat shrink tube and the conductive sheet, thereby reducing the air between the heat shrink tube and the conductive sheet to break through the heat shrink tube; at the same time, it is not easy to generate an arc at the connection between the conductive sheet and the connecting sheet, thereby reducing the possible danger to the user during use and increasing the safety performance of the feed switch when in use.

[0008] Optionally, a mounting plate is provided on the copper rod, a mounting groove is provided on the mounting plate, and a mounting bar is provided on the conductive plate; when the mounting bar is inserted into the mounting groove, the body diagonal of the conductive plate and the body diagonal of the connecting plate are parallel to each other.

[0009] By adopting the above technical solution, the mounting strip is inserted into the mounting groove to pre-fix the conductive sheet and the mounting sheet, so that the staff can weld the conductive sheet and the connecting sheet; the conductive sheet is sleeved on the connecting sheet, and the hole in the conductive sheet for the connecting sheet to pass through needs to be slightly larger than the connecting sheet. Since there may be certain errors in the manufacturing process of the conductive sheet, when the conductive sheet is sleeved on the connecting sheet, the staff may unconsciously press the conductive sheet during welding, and the connecting sheet may be deflected in the conductive sheet, causing the connecting sheet to warp in the conductive sheet, thereby reducing the connection area between the conductive sheet and the connecting sheet, affecting the connection between the conductive sheet and the connecting sheet, and inserting the mounting strip into the mounting groove to achieve parallelism between the body diagonal of the conductive sheet and the body diagonal of the connecting sheet, so that the conductive sheet and the connecting sheet are parallel to each other, and the connecting sheet is not easy to warp on the conductive sheet, so that the conductive sheet and the connecting sheet can better abut each other, ensuring the stability of the connection between the conductive sheet and the connecting sheet.

[0010] Optionally, a mounting spring sheet is provided in the mounting groove, and the mounting spring sheet is deformed toward one side of the mounting groove; when the mounting bar is inserted into the mounting groove, the mounting spring sheet abuts against the mounting bar.

[0011] By adopting the above technical solution, the mounting spring sheet is deformed toward one side of the mounting groove, and the mounting spring sheet abuts against the mounting bar, making it difficult for the mounting bar to detach from the mounting groove, so that the mounting bar can better fit the mounting groove, and the groove wall of the mounting groove limits the mounting bar, so that the conductive sheet can be better parallel to the connecting sheet.

[0012] Optionally, a limiting strip for inserting into the mounting slot is slidably connected to the mounting plate, and a first limiting hole for inserting the limiting strip is provided on the mounting strip; when the limiting strip is inserted into the first limiting hole, the mounting strip is fixed in the mounting slot.

[0013] By adopting the above technical solution, the limit bar is inserted into the first limit hole through the sliding limit bar, so as to limit the mounting bar by the limit bar and reduce the shaking of the mounting bar in the mounting groove, so that the mounting bar can be more stably located in the mounting groove, ensuring the stability of the body diagonal of the conductive sheet and the body diagonal of the connecting sheet being parallel to each other, so as to facilitate the staff to weld the conductive sheet and the connecting sheet.

[0014] Optionally, a moving bar is provided on the conductive sheet, and a limiting slope is provided on the limiting bar. The distance between the limiting slope and the conductive sheet gradually decreases along the direction from the moving bar to the mounting bar, and the limiting slope is located on the moving path of the moving bar; when the conductive sheet is sleeved on the connecting sheet, the moving bar drives the limiting bar to be inserted into the first limiting hole.

[0015] By adopting the above technical solution, the distance between the limiting slope and the conductive sheet is gradually reduced along the direction from the moving bar to the mounting bar, and the limiting slope is located on the moving path of the moving bar, so that the moving bar can drive the limiting bar to slide through the limiting slope, so that the limiting bar can be smoothly inserted into the first limiting hole, thereby realizing the fixation of the limiting bar to the mounting bar.

[0016] Optionally, a fixing spring sheet is provided on the limiting strip, and a receiving groove for placing the fixing spring sheet is provided on the connecting sheet; when the fixing spring sheet is placed in the receiving groove, the mounting sheet is pre-fixed on the connecting sheet.

[0017] By adopting the above technical solution, the fixing spring sheet is placed in the receiving groove, so that the installation sheet can be pre-fixed on the connecting sheet, thereby reducing the instability of the connection between the installation sheet and the connecting sheet, so that the body diagonal of the conductive sheet and the body diagonal of the installation sheet are parallel to each other when the installation bar is inserted into the installation groove; by inserting the fixing spring sheet into the receiving groove, the staff can know whether the installation sheet is installed in place when installing the installation sheet.

[0018] Optionally, a fixing groove for inserting a fixing spring sheet is provided on the bottom wall of the accommodating groove; when the fixing spring sheet is inserted into the fixing groove, the limiting strip is inserted into the first limiting hole.

[0019] By adopting the above technical solution, when the limit bar moves, the limit bar drives the fixed spring piece to move, so that the fixed spring piece can be smoothly inserted into the fixing groove, so that the fixed spring piece can fix the connecting piece, and the installation piece and the connecting piece are fixed to each other, so as to reduce the rotation between the installation piece and the connecting piece; when the fixed spring piece abuts against the bottom wall of the fixing groove, the fixed spring piece limits the limit bar from continuing to move, so that the distance moved by the limit bar in the fixing groove is fixed, so that the limit bar can limit the installation bar to avoid excessive movement of the installation bar; when the moving bar does not abut against the limit bar, the fixed spring piece drives the limit bar to move, so that the limit bar can be detached from the first limit hole, so that the staff can make timely adjustments when the installation is wrong.

[0020] Optionally, a guide block is provided on the accommodating groove, a guide slope is provided on the guide block, a distance between the guide slope and the fixing groove gradually decreases along the insertion direction of the fixing spring sheet, and the guide slope is located on the insertion path of the fixing spring sheet.

[0021] By adopting the above technical solution, the guiding bevel is located on the insertion path of the fixing spring sheet, so that the fixing spring sheet can be inserted into the fixing groove through the guiding bevel, and the fixing spring sheet can be deformed into the fixing groove, so as to facilitate the movement of the fixing spring sheet from the accommodating groove to the fixing groove.

[0022] A production process of a feed switch comprises the following steps: S1, welding the conductive sheet and the connecting sheet; S2. Wrap the conductive sheet and the connecting sheet with heat shrink tube, and fill the heat shrink tube with epoxy resin glue.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The conductive sheet and the connecting sheet are fixed by welding, so that no bulge will be generated between the conductive sheet and the connecting sheet, and no gap will be generated between the heat shrink tube and the conductive sheet, thereby reducing the air between the heat shrink tube and the conductive sheet to break through the heat shrink tube; at the same time, it is not easy to generate an arc at the connection between the conductive sheet and the connecting sheet, reducing the possible danger to the user during use.

[0024] 2. Insert the mounting bar into the mounting groove to pre-fix the conductive sheet and the mounting sheet, so that the staff can weld the conductive sheet and the connecting sheet; the conductive sheet is sleeved on the connecting sheet, and the hole in the conductive sheet for the connecting sheet to pass through needs to be slightly larger than the connecting sheet. Since there may be certain errors in the manufacturing process of the conductive sheet, when the conductive sheet is sleeved on the connecting sheet, the connecting sheet may be deflected in the conductive sheet, causing the connecting sheet to warp in the conductive sheet, thereby reducing the connection area between the conductive sheet and the connecting sheet, affecting the connection between the conductive sheet and the connecting sheet, and inserting the mounting bar into the mounting groove to achieve parallelism between the body diagonal of the conductive sheet and the body diagonal of the connecting sheet, so that the conductive sheet and the connecting sheet are parallel to each other, and the connecting sheet is not easy to warp on the conductive sheet, so that the conductive sheet and the connecting sheet can better abut each other, ensuring the stability of the connection between the conductive sheet and the connecting sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the structure of Example 1; Figure 2 is a schematic diagram of the structure of the copper rod in Example 1; Figure 3 is a schematic structural diagram highlighting the conductive sheet in Example 1; Figure 4 is an exploded schematic diagram highlighting the connecting piece in Example 1; Figure 5 is a schematic structural diagram of Example 2; Figure 6 is along Figure 5 Partial cross-sectional view along line AA; Figure 7 is along Figure 5 Partial cross-sectional view along line BB.

[0026] Figure numerals: 1. Shell; 11. Electrical component; 2. Copper rod; 21. Connecting piece; 22. Protective cover; 23. Heat shrink tube; 24. Receiving groove; 241. Fixing groove; 242. Guide block; 243. Guide slope; 3. Conductive sheet; 31. Mounting strip; 311. First limiting hole; 4. Mounting sheet; 41. Mounting groove; 411. Mounting spring piece; 412. Second limiting hole; 42. Sliding cavity; 421. Limiting strip; 422. Limiting slope; 43. Moving hole; 44. Moving strip; 45. Limiting block; 451. Fixed spring piece. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-7 This application is described in further detail.

[0028] Example 1 This embodiment discloses a feed switch and a production process thereof. A feed switch production process includes the following steps: S1. Sleeve the conductive sheet on the connecting sheet, and then weld the conductive sheet and the connecting sheet; S2. Wrap the heat shrink tube on the conductive sheet and the connecting sheet, and then fill the heat shrink tube with epoxy resin glue.

[0029] Reference Figure 1 and Figure 2 A feed switch comprises a housing 1, in which an electrical component 11 is arranged, and the electrical component 11 is used to realize the basic functions of the feed switch.

[0030] Reference Figure 2 and Figure 3 A copper rod 2 is provided in the housing 1, and a connecting piece 21 is fixedly connected to the copper rod 2. Two protective sleeves 22 are sleeved on the copper rod 2, and the two protective sleeves 22 are sleeved on both sides of the copper rod 2, and the connecting piece 21 is located between the two protective sleeves 22.

[0031] Reference Figure 4 , a conductive sheet 3 is provided on the connecting sheet 21, and the conductive sheet 3 is sleeved on the connecting sheet 21, and the conductive sheet 3 and the connecting sheet 21 are fixed by welding. The conductive sheet 3 and the connecting sheet 21 are covered with a heat shrink tube 23, and the heat shrink tube 23 is made of insulating material. Epoxy resin glue is poured into the heat shrink tube 23, and the epoxy resin glue is used to seal the connection between the connecting sheet 21 and the conductive sheet 3 to improve the insulation performance and avoid insulation breakdown.

[0032] The implementation principle of Example 1 is: the conductive sheet 3 and the connecting sheet 21 are fixed by welding to reduce the gap between the heat shrink tube 23 and the conductive sheet 3 .

[0033] Example 2 Reference Figure 5The difference between this embodiment and the first embodiment is that the copper rod 2 is provided with a mounting piece 4, and the mounting piece 4 is C-shaped. The mounting piece 4 is sleeved on the copper rod 2, and the mounting piece 4 covers a part of the connecting piece 21, and the mounting piece 4 is located between the two protective sleeves 22.

[0034] Reference Figure 6 , a mounting groove 41 is provided on the side of the mounting sheet 4, a mounting spring 411 is fixedly connected to the groove wall of the mounting groove 41, and the mounting spring 411 is deformed toward the groove wall on the other side of the mounting groove 41. A mounting bar 31 is fixedly connected to the side of the conductive sheet 3, and the mounting bar 31 can be inserted into the mounting groove 41. When the mounting bar 31 is inserted into the mounting groove 41, the mounting spring 411 abuts against the mounting bar 31 to limit the mounting bar 31 from leaving the mounting groove 41. At this time, the body diagonal of the conductive sheet 3 and the body diagonal of the connecting sheet 21 are parallel to each other, so that the conductive sheet 3 and the connecting sheet 21 are aligned with each other.

[0035] Reference Figure 6 The mounting plate 4 is provided with a sliding cavity 42 connected to the mounting groove 41, and a limiting strip 421 is slidably connected in the sliding cavity 42. A second limiting hole 412 is provided on the surface of the mounting spring sheet 411, and a first limiting hole 311 is provided on the surface of the mounting strip 31. The limiting strip 421 can be inserted into the first limiting hole 311 and the second limiting hole 412.

[0036] Reference Figure 6 A moving hole 43 connected to the sliding cavity 42 is provided on the side of the mounting sheet 4, and a moving bar 44 is slidably connected in the moving hole 43. A limiting inclined surface 422 is provided on the end surface of the limiting bar 421 away from the mounting groove 41, and the distance between the limiting inclined surface 422 and the mounting groove 41 gradually increases along the direction from the conductive sheet 3 to the mounting sheet 4, and the limiting inclined surface 422 is located on the insertion path of the moving bar 44.

[0037] Reference Figure 6 The staff puts the conductive sheet 3 on the connecting sheet 21, inserts the mounting bar 31 into the mounting groove 41, and then slides the movable bar 44 to drive the limiting bar 421 to move through the limiting inclined surface 422, so that the limiting bar 421 passes through the second limiting hole 412 and the first limiting hole 311, and the limiting bar 421 limits the fixed bar.

[0038] Reference Figure 6 and Figure 7The limiting block 45 is fixedly connected to the surface of the limiting strip 421, and a fixing spring 451 is fixedly connected to the limiting block 45, and the fixing spring 451 is deformed in the direction away from the limiting block 45. A receiving groove 24 is provided on the surface of the connecting piece 21 for placing the fixing spring 451, and a fixing groove 241 is provided on the bottom wall of the receiving groove 24, and the fixing groove 241 is for inserting the fixing spring 451. When the fixing spring 451 is located in the receiving groove 24, the mounting piece 4 is fixed to the connecting piece 21, and the limiting strip 421 is located in the sliding cavity 42. When the fixing spring 451 is fully inserted into the fixing groove 241, the fixing spring 451 can abut against the bottom wall of the fixing groove 241, and the fixing spring 451 restricts the limiting block 45 from continuing to move, and the limiting strip 421 is located in the first limiting hole 311 and the second limiting hole 412. When the moving bar 44 is not in contact with the limiting bar 421 , the fixing spring piece 451 drives the limiting bar 421 to escape from the first limiting hole 311 and the second limiting hole 412 .

[0039] Reference Figure 6 and Figure 7 A guide block 242 is integrally formed on the groove wall of the accommodating groove 24, and a guide slope 243 is provided on the surface of the guide block 242 facing the bottom wall of the fixing groove 241. The distance between the guide slope 243 and the bottom wall of the fixing groove 241 gradually decreases along the direction from the sliding cavity 42 to the mounting groove 41, and the guide slope 243 is located on the moving path of the fixed spring piece 451.

[0040] Reference Figure 6 and Figure 7 When the moving bar 44 is inserted into the installation slot 41, the fixing spring piece 451 moves from the accommodating slot 24 to the fixing slot 241 along the direction of the guiding slope 243 until the limiting bar 421 passes through the first limiting hole 311. At this time, the fixing spring piece 451 abuts against the bottom wall of the fixing slot 241.

[0041] The implementation principle of Example 2 is as follows: the staff first places the connecting plate 21 so that the fixed spring piece 451 is located in the accommodating groove 24, and then the staff puts the conductive plate 3 on, inserts the mounting bar 31 into the mounting groove 41, and the mounting spring piece 411 abuts against the mounting bar 31. Then the staff slides the movable bar 44, and the movable bar 44 drives the limiting bar 421 to move through the limiting inclined surface 422. The limiting bar 421 passes through the first limiting hole 311 and the second limiting hole 412. At the same time, the limiting block 45 drives the fixed spring piece 451 to move, so that the fixed spring piece 451 is inserted into the fixed groove 241 through the guiding inclined surface 243 to limit the continued movement of the limiting bar 421.

[0042] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A feed switch, comprising a housing (1), wherein a copper rod (2) is arranged in the housing (1), a connecting piece (21) is arranged on the copper rod (2), and a conductive piece (3) is sleeved on the connecting piece (21), characterized in that: The conductive sheet (3) and the connecting sheet (21) are fixed to each other by welding, and the conductive sheet (3) and the connecting sheet (21) are covered with a heat shrink tube (23).

2. A feed switch according to claim 1, characterized in that: The copper rod (2) is provided with a mounting sheet (4), the mounting sheet (4) is provided with a mounting groove (41), and the conductive sheet (3) is provided with a mounting bar (31); when the mounting bar (31) is inserted into the mounting groove (41), the body diagonal line of the conductive sheet (3) and the body diagonal line of the connecting sheet (21) are parallel to each other.

3. A feed switch according to claim 2, characterized in that: A mounting spring sheet (411) is provided in the mounting groove (41), and the mounting spring sheet (411) is deformed toward one side of the mounting groove (41); when the mounting bar (31) is inserted into the mounting groove (41), the mounting spring sheet (411) abuts against the mounting bar (31).

4. A feed switch according to claim 2, characterized in that: A limiting strip (421) for inserting into the mounting groove (41) is slidably connected to the mounting piece (4), and a first limiting hole (311) for inserting the limiting strip (421) is provided on the mounting strip (31); when the limiting strip (421) is inserted into the first limiting hole (311), the mounting strip (31) is fixed in the mounting groove (41).

5. A feed switch according to claim 4, characterized in that: The conductive sheet (3) is provided with a moving bar (44), and the limiting bar (421) is provided with a limiting inclined surface (422). The distance between the limiting inclined surface (422) and the conductive sheet (3) gradually decreases along the direction from the moving bar (44) to the mounting bar (31), and the limiting inclined surface (422) is located on the moving path of the moving bar (44); when the conductive sheet (3) is sleeved on the connecting sheet (21), the moving bar (44) drives the limiting bar (421) to be inserted into the first limiting hole (311).

6. A feed switch according to claim 4, characterized in that: The limiting strip (421) is provided with a fixing spring sheet (451), and the connecting sheet (21) is provided with a receiving groove (24) for receiving the fixing spring sheet (451); when the fixing spring sheet (451) is placed in the receiving groove (24), the mounting sheet (4) is pre-fixed on the connecting sheet (21).

7. A feed switch according to claim 6, characterized in that: A fixing groove (241) for inserting a fixing spring sheet (451) is provided on the bottom wall of the accommodating groove (24); when the fixing spring sheet (451) is inserted into the fixing groove (241), the limiting strip (421) is inserted into the first limiting hole (311).

8. A feed switch according to claim 7, characterized in that: The receiving groove (24) is provided with a guide block (242), and the guide block (242) is provided with a guide slope (243). The distance between the guide slope (243) and the fixing groove (241) gradually decreases along the insertion direction of the fixing spring sheet (451), and the guide slope (243) is located on the insertion path of the fixing spring sheet (451).

9. A production process for a feed switch, characterized in that: The steps include: S1, welding the conductive sheet and the connecting sheet; S2. Wrap the conductive sheet and the connecting sheet with heat shrink tube, and fill the heat shrink tube with epoxy resin glue.

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