Pluggable power supply surge protection device

Abstract

The utility model discloses a plug-in type power supply surge protection device, and relates to the field of electronic components. The problem that when an existing SPD is maintained, a plurality of screws need to be loosened or the SPD needs to be detached from a PCB through soldering iron, and the maintenance process is responsible is solved. The surge protection device comprises an outer shell, one side of the outer shell is provided with a pull buckle and a buckle, and the outer shell is inserted into or pulled out of a case through the pull buckle and the buckle; the lightning protection assembly is used for arranging a piezoresistor chip or a switch type element, is positioned and arranged in the outer shell and is electrically connected with a tightening assembly arranged in the outer shell through an electrode plate assembly; one end of the tightening assembly is electrically connected with the remote wire assembly and the lightning protection assembly, and the other end of the tightening assembly is limited and fastened on a copper bar led out of the protected equipment through the outer shell; the arc extinguishing plate is arranged on the track, the upper end of the arc extinguishing plate is connected with the tension spring, and the arc extinguishing plate is used for approaching the arc extinguishing gate under the action of the tension spring until the elastic sheet is isolated from the voltage limiting type or switch type voltage limiting element; and the rotating wheel is internally provided with a torsional spring, one end of the rotating wheel is connected with the arc extinguishing plate, the other end of the rotating wheel is connected with the indicating lamp, and the rotating wheel is used for rotating to change the color of the indicating lamp when the arc extinguishing plate approaches the arc chute.

Description

Technical Field

[0001] The utility model relates to the field of electronic components, and more specifically to a plug-in power supply surge protector. Background Art

[0002] Surge protection devices (SPDs) are used to absorb lightning overvoltage spike pulses, filter out interference signals in the power grid, and protect system safety. They have been widely used in precision and expensive instruments, equipment, and power supply systems in military, new energy, communication base stations, railways, meteorology, and other systems to protect instruments and equipment from lightning strikes and other transient overvoltage interference. As the height of power supply chassis in the communications market continues to decrease, the existing SPD structures, namely the 35mm standard track type, PCB board type, and screw-fixed type, have brought great difficulties to installation and maintenance due to height, occupied area, and wiring. At the same time, the investment cost of the SPD and effective control lines cannot be intuitively seen. Once the SPD is deteriorated or damaged, it is necessary to cut off the power supply, open the cover, loosen multiple screws, or remove the SPD from the PCB with a soldering iron, which is inconvenient for maintenance and replacement. Utility Model Content

[0003] The embodiment of the utility model provides a plug-in power surge protector, which solves the problem that when repairing the existing SPD, multiple screws need to be loosened or the SPD needs to be disassembled from the PCB board with a soldering iron, resulting in complicated repair process.

[0004] The present utility model provides a plug-in power surge protector, comprising:

[0005] The outer shell has a pull buckle and a buckle on one side, which are used to insert or pull out the outer shell from the chassis through the pull buckle and the buckle;

[0006] A lightning protection component, which is used to set a varistor chip or a switch-type element, is positioned inside the outer shell and is electrically connected to a clamping component set in the outer shell through an electrode sheet component;

[0007] A tightening component, one end of which is electrically connected to the remote line component and the lightning protection component respectively, and the other end of which is fastened to the copper busbar led out of the protected equipment through the limit of the outer shell;

[0008] The arc extinguishing plate is arranged on the track, and the upper end is connected to the tension spring, and is used to move closer to the arc extinguishing grid under the action of the tension spring until the spring is isolated from the voltage limiting element or the switch type voltage limiting element;

[0009] The rotating wheel has a torsion spring arranged inside, a first end connected to the arc extinguishing plate, and a second end connected to the indicator light, and is used for changing the color of the indicator light by rotating when the arc extinguishing plate approaches the arc extinguishing grid.

[0010] Preferably, the arc-extinguishing plate further comprises a first boss and a second boss located on both sides thereof;

[0011] The first boss is connected to the pressing portion of the remote signal terminal, and the second boss is connected to the first end of the rotating wheel;

[0012] The first boss is used to loosen from the pressing part when the arc extinguishing plate approaches the arc extinguishing grid, so that the remote signal terminal is changed from a normally closed state to a normally open state;

[0013] The second boss is used to loosen from the first end when the arc extinguishing plate approaches the arc extinguishing grid, so that the rotating wheel rotates clockwise under the action of the torsion spring, driving the second end to move the indicator light in the opposite direction of the arc extinguishing plate, so that the color of the indicator light changes.

[0014] Preferably, the tightening assembly comprises a first tightening member, a second tightening member, a third tightening member and a fourth tightening member;

[0015] The first tightening member and the second tightening member are electrically connected to the voltage limiting type or switch type voltage limiting element through a first electrode sheet and a second electrode sheet respectively;

[0016] The third tightening member and the fourth tightening member are electrically connected to the first remote signaling terminal and the second remote signaling terminal through the first pressing part and the second pressing part respectively;

[0017] The first tightening member and the second tightening member are fastened to the copper busbar led out of the protected equipment through the limiting position of the outer shell.

[0018] Preferably, the buckle comprises a first side rib, a second side rib and a cylinder;

[0019] When the buckle moves parallel to the set track with the support rod as a fulcrum, the cylinder contracts the compression spring through arc surface movement; the buckle moves within the range of the first side rib and the second side rib, and when the compression spring contracts, the top boss of the buckle is retracted into the outer shell.

[0020] Preferably, a barcode label pasting positioning frame is provided on one side of the outer shell, and the barcode label pasting positioning frame is used to set a barcode, a QR code or a performance parameter table.

[0021] The utility model embodiment provides a plug-in power surge protector, comprising: an outer shell, one side of which is provided with a pull buckle and a buckle, for inserting the outer shell into or pulling out the chassis through the pull buckle and the buckle; a lightning protection component, which is used to set a varistor chip or a switch-type element, which is positioned inside the outer shell, and is electrically connected to a clamping component arranged in the outer shell through an electrode sheet component, one end of which is electrically connected to a remote line component and a lightning protection component respectively, and the other end is fastened to a copper bus led out of a protected device through the limiting position of the outer shell; an arc extinguishing plate, which is arranged on a track, and the upper end of which is connected to a tension spring, and is used to approach the arc extinguishing grid under the action of the tension spring until the spring is isolated from the voltage-limiting or switch-type voltage-limiting element; a rotating wheel, a torsion spring is arranged inside the rotating wheel, one end of which is connected to the arc extinguishing plate, and the other end is connected to the indicator light, and is used to change the color of the indicator light by rotating when the arc extinguishing plate approaches the arc extinguishing grid. The plug-in power surge protector can not only limit the movement range of the buckle through the pull buckle and the buckle designed as an integral part on the outer shell, but also realize the free extension and retraction of the buckle with the assistance of the compression spring, and realize the linkage of the buckle and the pull buckle by utilizing the setting of the high and low tracks, and realize the free extension and retraction with the assistance of the compression spring while playing the role of fixing the whole to the chassis or cabinet; furthermore, through the design of the arc extinguishing plate, not only the conversion of the remote signal alarm can be realized, but also it can be linked with the visual alarm, avoiding the alarm hidden danger caused by the asynchrony between the two and improving the reliability of the alarm; through the link wheel of the indicator light of the arc extinguishing plate, the arc motion can be converted into linear motion, thereby improving the reliability of the indicator light to realize the alarm; through the design of the tightening component, not only the appearance is exquisite, the structure is compact and simple, the tightening component can tighten the copper busbar, and the installation and use are simpler. The surge protector provided by the embodiment of the utility model can solve the problem that when repairing the existing SPD, multiple screws need to be loosened or the SPD needs to be disassembled from the PCB board with a soldering iron, resulting in a responsible repair process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the outer shell structure provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the internal structure of one side of a plug-in power surge protector provided by an embodiment of the utility model;

[0025] Figure 3A schematic diagram of the internal structure of the other side of the plug-in power surge protector provided by an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the structure of the arc extinguishing plate and one side of the runner provided in an embodiment of the utility model;

[0027] Figure 5 A schematic diagram of the structure of the arc extinguishing plate and the other side of the runner provided in an embodiment of the utility model;

[0028] Figure 6 A schematic diagram of the structure of one side of the drawstring and buckle provided in an embodiment of the utility model;

[0029] Figure 7 A schematic diagram of the other side structure of the buckle and the buckle provided in an embodiment of the utility model;

[0030] Figure 8 A schematic diagram of the connection structure between the lightning protection component and the tightening component provided in the embodiment of the utility model;

[0031] Fig. 9 A schematic diagram of the connection between the clamping assembly provided in the embodiment of the utility model and the copper busbar led out of the protected equipment;

[0032] Among them, the shell 1, the buckle 2, the pull buckle 3, the first side rib 3-1, the second side rib 3-2, the cylinder 3-3; the support rod 4, the first tightening piece 5-1, the second tightening piece 5-2, the third tightening piece 6-1, the fourth tightening piece 6-2, the lightning protection component 7, the first tension spring 8-1, the second tension spring 8-2, the spring piece 9, the arc extinguishing plate 10, the first boss 10-1, the second boss 10-2, the rotating wheel 11, the first end 11-1, the second end 11-2, the indicator 12, the compression spring 13, the torsion spring 14, the first track 15-1, the second track 15-2, the voltage limiting or switch type voltage limiting element 17, the first electrode sheet 18-1, the second electrode sheet 18-2, the first remote signal terminal 20, the second remote signal terminal 21, the first clamping point 20-1, the second clamping point 21-1. DETAILED DESCRIPTION

[0033] 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.

[0034] Figure 1 A schematic diagram of the outer shell structure provided by an embodiment of the utility model; Figure 2A schematic diagram of the internal structure of one side of a plug-in power surge protector provided by an embodiment of the utility model; Figure 3 A schematic diagram of the internal structure of the other side of the plug-in power surge protector provided by an embodiment of the utility model; Figure 4 A schematic diagram of the structure of the arc extinguishing plate and one side of the runner provided in an embodiment of the utility model; Figure 5 A schematic diagram of the structure of the arc extinguishing plate and the other side of the runner provided in an embodiment of the utility model; Figure 6 A schematic diagram of the structure of one side of the drawstring and buckle provided in an embodiment of the utility model; Figure 7 A schematic diagram of the other side structure of the buckle and the buckle provided in an embodiment of the utility model; Figure 8 A schematic diagram of the connection structure between the lightning protection component and the tightening component provided in the embodiment of the utility model; Fig. 9 A schematic diagram of the connection between the clamping assembly provided in the embodiment of the utility model and the copper busbar led out of the protected equipment; Figures 1 to 9 Taking the example, the plug-in power surge protector provided by the embodiment of the utility model is described in detail.

[0035] The plug-in power surge protector provided in the embodiment of the utility model mainly comprises: an outer shell 1, a lightning protection component 7, a tightening component, an arc extinguishing plate 10 and a rotating wheel 11.

[0036] Specifically, a pull tab 3 and a buckle 2 are provided on one side of the outer shell 1, and the outer shell 1 can be inserted into or pulled out of the chassis by using the pull tab 3 and the buckle 2 in combination; the lightning protection component 7 can be installed with one or two parallel varistor chips without changing its volume, and can also be installed with switch-type elements, such as discharge tubes, but not limited to discharge tubes; the lightning protection component 7 is positioned inside the outer shell 1, and is electrically connected to the clamping component arranged in the outer shell through the electrode sheet assembly; one end of the clamping component is electrically connected to the remote line assembly and the lightning protection component 7 respectively, and the other end is fastened to the copper bus led out of the protected equipment through the limit of the outer shell 1.

[0037] The arc extinguishing plate 10 is arranged on the track, and its upper end is connected to the tension spring. In the embodiment of the utility model, the third tightening member 6-1 is electrically connected to the first remote signal terminal 20 through the first pressing part 20-1, and the fourth tightening member 6-2 is electrically connected to the second remote signal terminal 21 through the second pressing part 21-1. When the lightning protection component 7 works normally, the first remote signal terminal 20 and the second remote signal terminal 21 are in a normally closed state. When the lightning protection component 7 deteriorates or is about to fail, the voltage limiting or switch type voltage limiting element 17 arranged on one side of the lightning protection component 7 begins to heat up. When the heat accumulates to a certain extent, the spring piece 9 is separated from the voltage limiting or switch type voltage limiting element 17. Correspondingly, when the spring piece 9 is separated from the voltage limiting or switch type voltage limiting element 17, the tension spring will pull the arc extinguishing plate 10 to approach the arc extinguishing grid under the action of the track until the spring piece 9 is completely isolated from the voltage limiting or switch type voltage limiting element 17, and the arc light generated at the moment of separation is weakened by the arc extinguishing grid and disappears.

[0038] A first end 11-1 and a second end 11-2 are arranged on both sides of the rotating wheel 11, and a torsion spring 14 is arranged inside the rotating wheel 11. The first end 11-1 is connected to the arc extinguishing plate 10, and the second end 11-2 is connected to the indicator light. When the arc extinguishing plate 10 approaches the arc extinguishing grid, the connection between the first end 11-1 and the arc extinguishing plate 10 is loosened. After the first end 11-1 is not fixed, the rotating wheel 11 starts to rotate clockwise under the action of the torsion spring 14, and at the same time drives the second end 11-2 to rotate, so that the "L"-shaped indicator light connected to the second end 11-2 moves in the opposite direction of the arc extinguishing plate 10, converting the arc motion into linear motion, realizing the change of the indicator mark 12 from green to red, and achieving a visual alarm function.

[0039] The embodiment of the utility model provides a plug-in power surge protector. The pull buckle 3 and the buckle 2 are integrally designed on the outer shell 1, which can not only limit the movement range of the buckle 2, but also realize the free extension and retraction of the buckle 2 with the assistance of the compression spring 13. The buckle 2 and the pull buckle 3 are linked by the setting of the high and low tracks. While realizing free extension and retraction with the assistance of the compression spring 13, the overall function of fixing the buckle 2 to the chassis or cabinet is played. Furthermore, the design of the arc extinguishing plate 10 can not only realize the conversion of the remote signal alarm, but also can be linked with the visual alarm, avoiding the alarm hidden danger caused by the asynchronism between the two, and improving the reliability of the alarm. The link wheel 11 of the indicator light of the arc extinguishing plate 10 can convert the arc motion into linear motion, and improve the reliability of the indicator light to realize the alarm. The design of the tightening component not only has a delicate appearance and a compact and simple structure, but the tightening component can tighten the copper busbar, and the installation and use are simpler. The surge protector provided by the embodiment of the utility model can solve the problem that when the existing SPD is repaired, multiple screws need to be loosened or the SPD needs to be disassembled from the PCB board with a soldering iron, resulting in a responsible maintenance process.

[0040] By way of example, an embodiment of the utility model provides a plug-in power surge protector, and the arc extinguishing plate 10 also includes a first boss 10-1 and a second boss 10-2 located on both sides thereof; specifically, the first boss 10-1 is connected to the first clamping point 20-1 and the second clamping point 21-1 included in the first remote signaling terminal 20 and the second remote signaling terminal 21. Through the above arrangement, the working state of the first remote signaling terminal 20 and the second remote signaling terminal 21 can be converted from normally closed to normally open, thereby achieving the alarm function.

[0041] The second boss 10-2 of the arc extinguishing plate 10 is connected to the first end 11-1 included in the rotating wheel 11. When the arc extinguishing plate 10 approaches the arc extinguishing grid, the second boss 10-2 and the first end 11-1 included in the rotating wheel 11 will become loose. Without the fixation of the first end 11-1, the rotating wheel 11 can rotate clockwise under the action of the torsion spring 14. When the rotating wheel 11 rotates, it can drive the second end 11-2 to rotate, so that the "L"-shaped indicator light connected to the second end 11-2 moves in the opposite direction of the arc extinguishing plate 10, converting the arc motion into linear motion, realizing the change of the indicator mark 12 from green to red, and achieving a visual alarm function.

[0042] For example, an embodiment of the utility model provides a plug-in power surge protector, wherein the clamping assembly includes a first clamping member 5-1, a second clamping member 5-2, a third clamping member 6-1 and a fourth clamping member 6-2; and the electrode assembly includes a first electrode sheet 18-1 and a second electrode sheet 18-2.

[0043] Specifically, the first tightening member 5-1 and the second tightening member 5-2 are electrically connected to the voltage limiting or switch type voltage limiting element 17 through the first electrode sheet 18-1 and the second electrode sheet 18-2 respectively; the first tightening member 5-1 and the second tightening member 5-2 can fasten the copper busbar led out of the protected equipment through the limiting of the outer shell 1, so as to achieve the effect of pluggable and tight combination.

[0044] The third tightening member 6-1 and the fourth tightening member 6-2 are electrically connected to the first remote signaling terminal 20 and the second remote signaling terminal 21 through the first pressing part 20-1 and the second pressing part 21-1 respectively. When the lightning protection component 7 is in a normal state, the first remote signaling terminal 20 and the second remote signaling terminal 21 are in a normally closed state. In other words, when the lightning protection component 7 deteriorates or is about to fail, the voltage-limiting or switch-type voltage-limiting element 17 generates heat. When the heat accumulates to a certain extent, the spring 9 is separated from the voltage-limiting or switch-type voltage-limiting element 17. At the same time, the first tension spring 8-1 and the second tension spring 8-2 pull the arc extinguishing plate 10 in parallel under the action of the first track 15-1 and the second track 15-2 to approach the arc extinguishing grid until the spring 9 is completely isolated from the voltage-limiting or switch-type voltage-limiting element 17, and the arc light generated at the moment of separation is weakened by the arc extinguishing grid and disappears.

[0045] For example, the embodiment of the utility model provides a plug-in power surge protector, and the buckle 3 includes a first side rib 3-1, a second side rib 3-2 and a cylinder 3-3. Specifically, when inserting or pulling out from the chassis or cabinet panel, it is only necessary to use the support rod 4 as a fulcrum to pull the buckle 3, and the buckle 3 moves parallel to the predetermined track, and the cylinder 3-3 on the buckle 3 moves from a lower step to a higher step through an arc surface, causing the compression spring 13 to contract, and at the same time, the buckle 2 moves toward the inside of the shell 1 within the range of the buckle 3 including the side ribs and until the top boss of the buckle 2 is completely retracted into the shell 1. Based on the above design, if the outer shell 1 is inserted into place, the buckle 3 can be pushed in to make the buckle 2 extend again, so as to achieve the effect of fixing with the chassis or cabinet. Based on the above design, it can also be combined into "1+1", "2P", "3+1", "4P" and other modes, so as to achieve a reliable and stable lightning protection effect.

[0046] It should be noted that the plug-in power surge protector provided in the embodiment of the utility model also has a barcode label pasting positioning frame provided on one side of the outer shell, and the barcode label pasting positioning frame is used to set a barcode, a QR code or a performance parameter table.

[0047] The utility model embodiment provides a plug-in power surge protector, comprising: an outer shell, one side of which is provided with a pull buckle and a buckle, for inserting the outer shell into or pulling out the chassis through the pull buckle and the buckle; a lightning protection component, which is used to set a varistor chip or a switch-type element, which is positioned inside the outer shell, and is electrically connected to a clamping component arranged in the outer shell through an electrode sheet component, one end of which is electrically connected to a remote line component and a lightning protection component respectively, and the other end is fastened to a copper bus led out of a protected device through the limiting position of the outer shell; an arc extinguishing plate, which is arranged on a track, and the upper end of which is connected to a tension spring, and is used to approach the arc extinguishing grid under the action of the tension spring until the spring is isolated from the voltage-limiting or switch-type voltage-limiting element; a rotating wheel, a torsion spring is arranged inside the rotating wheel, one end of which is connected to the arc extinguishing plate, and the other end is connected to the indicator light, and is used to change the color of the indicator light by rotating when the arc extinguishing plate approaches the arc extinguishing grid. The plug-in power surge protector can not only limit the movement range of the buckle through the pull buckle and the buckle designed as an integral part on the outer shell, but also realize the free extension and retraction of the buckle with the assistance of the compression spring, and realize the linkage of the buckle and the pull buckle by utilizing the setting of the high and low tracks, and realize the free extension and retraction with the assistance of the compression spring while playing the role of fixing the whole to the chassis or cabinet; furthermore, through the design of the arc extinguishing plate, not only the conversion of the remote signal alarm can be realized, but also it can be linked with the visual alarm, avoiding the alarm hidden danger caused by the asynchrony between the two and improving the reliability of the alarm; through the link wheel of the indicator light of the arc extinguishing plate, the arc motion can be converted into linear motion, thereby improving the reliability of the indicator light to realize the alarm; through the design of the tightening component, not only the appearance is exquisite, the structure is compact and simple, the tightening component can tighten the copper busbar, and the installation and use are simpler. The surge protector provided by the embodiment of the utility model can solve the problem that when repairing the existing SPD, multiple screws need to be loosened or the SPD needs to be disassembled from the PCB board with a soldering iron, resulting in a responsible repair process.

[0048] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. Plug-in power surge protector, characterized in that: include: The outer shell has a pull buckle and a buckle on one side, which are used to insert or pull out the outer shell from the chassis through the pull buckle and the buckle; A lightning protection component, which is used to set a varistor chip or a switch-type element, is positioned inside the outer shell and is electrically connected to a clamping component set in the outer shell through an electrode sheet component; A tightening component, one end of which is electrically connected to the remote line component and the lightning protection component respectively, and the other end of which is fastened to the copper busbar led out of the protected equipment through the limit of the outer shell; The arc extinguishing plate is arranged on the track, and the upper end is connected to the tension spring, and is used to move closer to the arc extinguishing grid under the action of the tension spring until the spring is isolated from the voltage limiting element or the switch type voltage limiting element; The rotating wheel has a torsion spring arranged inside, a first end connected to the arc extinguishing plate, and a second end connected to the indicator light, and is used for changing the color of the indicator light by rotating when the arc extinguishing plate approaches the arc extinguishing grid.

2. The plug-in power surge protector according to claim 1, characterized in that: The arc extinguishing plate further comprises a first boss and a second boss located on both sides thereof; The first boss is connected to the pressing portion of the remote signal terminal, and the second boss is connected to the first end of the rotating wheel; The first boss is used to loosen from the pressing part when the arc extinguishing plate approaches the arc extinguishing grid, so that the remote signal terminal is changed from a normally closed state to a normally open state; The second boss is used to loosen from the first end when the arc extinguishing plate approaches the arc extinguishing grid, so that the rotating wheel rotates clockwise under the action of the torsion spring, driving the second end to move the indicator light in the opposite direction of the arc extinguishing plate, so that the color of the indicator light changes.

3. The plug-in power surge protector according to claim 1, characterized in that: The tightening assembly comprises a first tightening member, a second tightening member, a third tightening member and a fourth tightening member; The first tightening member and the second tightening member are electrically connected to the voltage limiting type or switch type voltage limiting element through a first electrode sheet and a second electrode sheet respectively; The third tightening member and the fourth tightening member are electrically connected to the first remote signaling terminal and the second remote signaling terminal through the first pressing part and the second pressing part respectively; The first tightening member and the second tightening member are fastened to the copper busbar led out of the protected equipment through the limiting position of the outer shell.

4. The plug-in power surge protector according to claim 1, characterized in that: The buckle comprises a first side rib, a second side rib and a cylinder; When the buckle moves parallel to the set track with the support rod as a fulcrum, the cylinder contracts the compression spring through arc surface movement; the buckle moves within the range of the first side rib and the second side rib, and when the compression spring contracts, the top boss of the buckle is retracted into the outer shell.

5. The plug-in power surge protector according to claim 1, characterized in that: A barcode label pasting positioning frame is arranged on one side of the outer shell, and the barcode label pasting positioning frame is used to set a barcode, a two-dimensional code or a performance parameter table.

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