A triode having a protection function

Abstract

The application discloses a triode with a protection function and relates to the technical field of triodes, which solves the problem of short circuit caused by the increase of base B current and comprises a tube body, the base B, the collector C and the emitter E being connected in the tube body; the device further comprises a resistance increasing assembly, a shunt assembly and a resistance increasing assembly for increasing the resistance value of the base B under the saturated state, the shunt assembly for dispersing the current being arranged on the resistance increasing assembly, when the triode is in the saturated state and the base B current continuously increases, a plurality of second resistance plates are sequentially attached to the first resistance plate according to the size of the circuit, so that the resistance at the base B is automatically increased, the conductive plate is connected with the first resistance plate, the increased current is uniformly distributed, the base B current is prevented from being too large and short circuit is avoided, and the device is automatically adjusted according to the change of the current and is simple and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of triode, in particular to a triode with protection function. BACKGROUND

[0002] Triode, full name should be semiconductor triode, also known as bipolar transistor, crystal triode, is a kind of control current semiconductor device. Its role is to amplify weak signal into a larger amplitude value electric signal, also used as non-contact switch, triode is one of the basic semiconductor components, has current amplification, is the core component of electronic circuit.

[0003] Triode is divided into PNP type and NPN type, among which the most used in daily life should be NPN type triode. Whether it is NPN type triode or PNP type triode, they all have three pins, which are base B, collector C and emitter E. Among the three pins, the base is the control pin, the collector is the current input pin, and the emitter is the current output pin.

[0004] Triode has three working states, which are cutoff state, amplification state and saturation state. In saturation state, collector C current will not increase, no matter how the base B current increases, and the base B is in saturation overload state for a long time, and the resistance value is constant, which is generally greater than the resistance value in saturation state, but will not exceed too much, and the loss caused by exceeding too much is greater. The fixed resistance value is more insufficient compared with the continuously increasing base B current, resulting in short circuit and affecting the durability. The existing triode does not have the function of automatic adjustment and protection in saturation state for a long time. Therefore, we propose a triode with protection function. SUMMARY

[0005] The purpose of the present application is to provide a triode with protection function which can automatically adjust the resistance to avoid short circuit caused by excessive current, so as to solve the problems in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a triode with protection function, comprising a tube body, the tube body is connected with base B, collector C and emitter E; further comprising resistance increasing assembly, the resistance increasing assembly for increasing the resistance value of the base B in saturation state is arranged on the base B; shunt assembly, the shunt assembly for dispersing current in cooperation with the resistance increasing assembly is arranged on the resistance increasing assembly.

[0007] Preferably, the resistance increasing assembly comprises a first resistance plate fixedly connected with the base B, two limiting rods fixedly connected below the first resistance plate, a plurality of second resistance plates arranged in gaps and sleeved on the limiting rods, a current-carrying coil fixedly connected with the pipe body, the current-carrying coil being electrically connected with the electrode input end of the pipe body, a fixed plate fixedly connected in the pipe body, and a moving assembly provided on the fixed plate and used for driving the second resistance plates to be sequentially attached to the first resistance plate.

[0008] Preferably, the moving assembly comprises three rotating wheels in triangular distribution and rotationally connected with the fixed plate, a belt sleeved on the rotating wheels, a plurality of connecting plates fixedly connected on the belt in gaps, first compression springs fixedly connected on the connecting plates, extrusion plates connected with the first compression springs, movable plates fixedly connected with the second resistance plates and abutting against the extrusion plates, and a power assembly provided on the rotating wheels and used for driving the rotating wheels to rotate.

[0009] Preferably, the power assembly comprises an electromagnetic plate matched with the current-carrying coil, a connecting rod fixedly connected with the electromagnetic plate, toothed plates fixedly connected at both ends of the connecting rod, a limiting frame fixedly connected with the fixed plate and sleeved on the outer surfaces of the toothed plates, a gear fixedly connected with the central shaft of the rotating wheel and engaged with the toothed plates, and an elastic pull rope connected with the pipe body and arranged at the bottom of the connecting rod.

[0010] Preferably, the shunt assembly comprises a residual current shunt device arranged in the pipe body, an output end of the residual current shunt device penetrating out of the pipe body, an active groove provided on the first resistance plate, an electrically-conductive plate slidingly fitted in the active groove and connected with the residual current shunt device, a second compression spring hungly fitted between the electrically-conductive plate and the active groove, the electrically-conductive plate being in contact with the first resistance plate, and a pressing plate made of elastic material and arranged in the active groove, and a switching assembly provided on the gear and used for driving the pressing plate to move along the active groove.

[0011] Preferably, the switching assembly comprises a rotating rod fixedly connected with the central shaft of the gear, a first sliding column fixedly connected with the rotating rod, a rotating plate rotationally connected with the fixed plate, a first sliding groove and a second sliding groove provided on the top and bottom of the rotating plate respectively, the first sliding column sliding in the first sliding groove, a second sliding column slidingly fitted in the second sliding groove, a sliding groove provided on the first resistance plate and communicating with the active groove, a slide rod with a rectangular cross section slidingly fitted in the sliding groove, the second sliding column sliding in the sliding groove and fixedly connected with the slide rod, and a cooperation assembly provided on the rotating rod and used for promoting the rotating plate to rotate.

[0012] Preferably, the matching assembly comprises a first rotating shaft rotatably connected with the rotating rod, a second rotating shaft rotatably connected with the rotating plate, and a tension spring hung and matched between the first rotating shaft and the second rotating shaft.

[0013] Preferably, the matching assembly further comprises a wedge-shaped plate fixedly connected with the toothed plate, an inclined surface of the wedge-shaped plate abutting and contacting an L-shaped rod, and the L-shaped rod being fixedly connected with a middle shaft of the gear.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] When the triode is in a saturated state and the base B current continuously increases, multiple second resistance plates are sequentially attached to the first resistance plate according to the size of the circuit, so as to automatically increase the resistance at the base B, drive the conductive plate to be connected with the first resistance plate, and thus evenly divide the increased current, thereby avoiding that the base B current is too large to cause a short circuit. The device is automatically adjusted according to the change of the current, and is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the structure of the pipe body of the present application;

[0018] Figure 3 It is a schematic diagram of the structure of the pipe body of the present application; Figure 2 It is a schematic diagram of the structure of the base B and its connecting member;

[0019] Figure 4 It is a schematic diagram of the structure of the pipe body of the present application; Figure 3 It is a schematic diagram of the structure of the pipe body of the present application;

[0020] Figure 5 It is a schematic diagram of the structure of the pipe body of the present application; Figure 4 It is a schematic diagram of the side structure of the second resistance plate of the present application;

[0021] Figure 6 It is a schematic diagram of the structure of the pipe body of the present application; Figure 5 It is a schematic diagram of the structure of the pipe body of the present application;

[0022] Figure 7 It is a schematic diagram of the structure of the pipe body of the present application; Figure 6 It is a schematic diagram of the structure of the pipe body of the present application;

[0023] Figure 8 It is a schematic diagram of the structure of the pipe body of the present application; Figure 7 It is a schematic diagram of the structure of the pipe body of the present application;

[0024] Figure 9 It is a schematic diagram of the structure of the pipe body of the present application; Figure 4 It is a schematic diagram of the structure of the pipe body of the present application;

[0025] Figure 10 It is a schematic diagram of the structure of the pipe body of the present application; Figure 9 It is a schematic diagram of the structure of the pipe body of the present application;

[0026] Figure 11 For Figure 10 Split diagram of transfer plate structure;

[0027] Figure 12 For the abstract of the invention.

[0028] In the figure: 1-tube body; 2-base B; 3-collector C; 4-emitter E; 5-resistance increasing assembly; 6-first resistance plate; 7-limiting rod; 8-second resistance plate; 9-power coil; 10-fixing plate; 11-moving assembly; 12-rotating wheel; 13-belt; 14-connection plate; 15-first compression spring; 16-pressing plate; 17-moving plate; 18-power assembly; 19-electromagnetic plate; 20-connection rod; 21-toothed plate; 22-limiting frame; 23-gear; 24-elastic pull rope; 25-shunt assembly; 26-residual current shunt device; 27-moving groove; 28-conductive plate; 29-second compression spring; 30-pressing plate; 31-switching assembly; 32-rotating rod; 33-first sliding column; 34-rotating plate; 35-first sliding groove; 36-second sliding groove; 37-second sliding column; 38-sliding groove; 39-sliding rod; 40-matching assembly; 41-first rotating shaft; 42-second rotating shaft; 43-tension spring; 44-wedge-shaped plate; 45-L-shaped rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] Embodiment one

[0031] Please refer to Figures 1-4 , a triode with protection function in the figure, including tube body 1, the tube body 1 is connected with base B 2, collector C 3 and emitter E 4; It also includes resistance increasing assembly 5, which is used to increase the resistance value of base B 2 in saturation state, and resistance increasing assembly 5 is arranged on base B 2; Shunt assembly 25, used to cooperate with resistance increasing assembly 5 to disperse current, shunt assembly 25 is arranged on resistance increasing assembly 5.

[0032] Please refer to Figures 4-6The resistance increasing assembly 5 in the drawing includes a first resistance plate 6 fixedly connected with the base B2, two limiting rods 7 fixedly connected below the first resistance plate 6, a plurality of second resistance plates 8 arranged in gaps and sleeved on the limiting rods 7, a current-carrying coil 9 fixedly connected with the pipe body 1 and arranged below the second resistance plates 8, the current-carrying coil 9 being electrically connected with the electrode input end of the pipe body 1, a fixed plate 10 fixedly connected in the pipe body 1, and a moving assembly 11 arranged on the fixed plate 10 and configured to drive the second resistance plates 8 to sequentially adhere to the first resistance plate 6.

[0033] Please refer to Figures 7-8 The moving assembly 11 in the drawing includes three rotating wheels 12 arranged in a triangular distribution and rotationally connected with the fixed plate 10, a belt 13 sleeved on the rotating wheels 12, a plurality of connecting plates 14 fixedly connected with the belt 13 and arranged in gaps, first compression springs 15 fixedly connected with the connecting plates 14, extrusion plates 16 connected with the first compression springs 15, movable plates 17 fixedly connected with the second resistance plates 8 and abutting against the extrusion plates 16, and a power assembly 18 arranged on the rotating wheels 12 and configured to drive the rotating wheels 12 to rotate.

[0034] Please refer to Figures 5-7 The power assembly 18 in the drawing includes an electromagnetic plate 19 matched with the current-carrying coil 9, a connecting rod 20 fixedly connected with the electromagnetic plate 19, toothed plates 21 fixedly connected at both ends of the connecting rod 20, a limiting frame 22 fixedly connected with the fixed plate 10 and sleeved on the outer surfaces of the toothed plates 21, a gear 23 fixedly connected with the central shaft of the rotating wheel 12 and engaged with the toothed plates 21, and elastic pull ropes 24 connected with the pipe body 1 and arranged at the bottom of the connecting rod 20.

[0035] Please refer to Figure 3 and Figures 9-10 The shunt assembly 25 in the drawing includes a residual current shunt device 26 arranged in the pipe body 1, the output end of the residual current shunt device 26 penetrating out of the pipe body 1, an active slot 27 formed in the first resistance plate 6, a conductive plate 28 slidably fitted in the active slot 27 and connected with the residual current shunt device 26, a second compression spring 29 hung and fitted between the conductive plate 28 and the active slot 27, the side of the conductive plate 28 being in contact with the first resistance plate 6, a pressing plate 30 made of an elastic material and arranged in the active slot 27, and a switching assembly 31 arranged on the gear 23 and configured to drive the pressing plate 30 to move along the active slot 27.

[0036] In this embodiment, when the triode is in a saturated state, and the base B2 current continues to increase, the strength of the energized coil 9 increases, causing the electromagnetic plate 19 to overcome the effect of the elastic pull rope 24, move downward, thereby driving the tooth plate 21 to move downward, the gear 23 rotates, the rotating wheel 12 and the belt 13 rotate clockwise, the connecting plate 14 drives the first compression spring 15 and the pressing plate 16 to move upward, and the movable plate 17 drives the second resistance plate 8 to move upward, when the first second resistance plate 8 is attached to the first resistance plate 6, under the action of the continuously increasing current, the belt 13 continues to rotate, the connecting plate 14 continues to rise, the first compression spring 15 at the bottom of the first second resistance plate 8 contracts, the first resistance plate 6 remains in a stable state attached to the first resistance plate 6, and the second second resistance plate 8 continues to rise and is attached to the first second resistance plate 8 above, thereby increasing the resistance, automatically adjusting, and avoiding the resistance at the base B2 being too small relative to the current, which would cause a short circuit.

[0037] When the gear 23 rotates, the switching assembly 31 is used to move the pressure plate 30 made of elastic material along the movable slot 27, thereby pressing the conductive plate 28, making the side of the conductive plate 28 contact the first resistance plate 6, thereby dividing the current and part of the current flows into the residual current diversion device 26, and the residual current diversion device 26 is connected to the external device (such as a warning red light device or other auxiliary devices), thereby fully utilizing the divided current, avoiding current loss and waste.

[0038] Embodiment Two

[0039] This embodiment two is a further supplement and explanation of embodiment one, please refer to Figures 9-11 The switching assembly 31 in the diagram includes a rotating rod 32 fixedly connected with the shaft in the gear 23, a first slide column 33 fixedly connected with the rotating rod 32, a rotating plate 34 rotationally connected with the fixed plate 10, a first sliding groove 35 and a second sliding groove 36 respectively formed in the top and bottom of the rotating plate 34, a second slide column 37 slidably fitted in the second sliding groove 36, a sliding groove 38 formed in the first resistance plate 6 and communicating with the movable slot 27, a slide rod 39 with a rectangular cross section slidably fitted in the sliding groove 38, the second slide column 37 slidably fitted in the sliding groove 38 and fixedly connected with the slide rod 39, and a cooperation assembly 40 provided on the rotating rod 32 to facilitate the rotation of the rotating plate 34.

[0040] In this embodiment, the gear 23 rotates to drive the first slide column 33 to rotate, the first slide column 33 cooperates with the first sliding groove 35, thereby causing the rotating plate 34 to rotate, the second slide column 37 moves along the sliding groove 38 under the action of the second sliding groove 36 and the slide rod 39, thereby causing the pressure plate 30 to move along the movable slot 27, and causing the conductive plate 28 to be attached to the first resistance plate 6 by overcoming the action of the second compression spring 29, the sliding plates at the top and bottom of the conductive plate 28 are non-conductive structures and only have a sliding effect.

[0041] Embodiment Three

[0042] Embodiment Three is a further supplement and illustration of Embodiment One, please refer to Figures 9-11 , the switching assembly 31 in the diagram includes a rotating rod 32 fixedly connected with the shaft in the gear 23, the rotating rod 32 is fixedly connected with a first slide column 33, the fixed plate 10 is rotatably connected with a rotating plate 34, the rotating plate 34 is provided with a first slide groove 35 and a second slide groove 36 at the top and bottom respectively, the first slide column 33 slides in the first slide groove 35, the second slide groove 36 is slidably fitted with a second slide column 37, the first resistance plate 6 is provided with a sliding groove 38 communicated with the movable groove 27, the sliding groove 38 is slidably fitted with a slide rod 39 with a rectangular cross section, the second slide column 37 slides in the sliding groove 38 and is fixedly connected with the slide rod 39, the rotating rod 32 is provided with a cooperation assembly 40 to facilitate the rotation of the rotating plate 34.

[0043] Please refer to Figures 10-11 , the cooperation assembly 40 in the diagram includes a first rotating shaft 41 rotatably connected with the rotating rod 32, the rotating plate 34 is rotatably connected with a second rotating shaft 42, the first rotating shaft 41 and the second rotating shaft 42 are hung and cooperated with a tension spring 43.

[0044] The cooperation assembly 40 further includes a wedge-shaped plate 44 fixedly connected with the tooth plate 21, the inclined surface of the wedge-shaped plate 44 is in contact with an L-shaped rod 45, the L-shaped rod 45 is fixedly connected with the shaft of the gear 23.

[0045] In this embodiment, when the rotating rod 32 is rotated by a slight angle, the rotating plate 34 is rotated from one side of the rotating rod 32 to the other side, which facilitates the rapid rotation of the rotating plate 34 under the action of the tension spring 43, and the tooth plate 21 moves downward, driving the wedge-shaped block to move downward, thereby driving the L-shaped rod 45 to rotate and facilitating the rotation of the rotating rod 32. It should be noted that in this document, relational terms such as first and second and the like can only be used to differentiate one entity or action from another entity or action, and do not necessarily require or imply that these entities or actions have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A transistor with protection function, comprising: The tube body (1) is connected to a base B (2), a collector C (3) and an emitter E (4); Its characteristic is that it further includes: Resistance-increasing component (5), used to increase the resistance value of the base B (2) in the saturation state, the resistance-increasing component (5) is disposed on the base B (2); The current shunt component (25) is disposed on the current shunt component (5) in conjunction with the current shunting component (5). The resistance-increasing component (5) includes a first resistance plate (6) fixedly connected to the base B (2). Two limiting rods (7) are fixedly connected below the first resistance plate (6). Multiple second resistance plates (8) arranged in a gap are sleeved on the limiting rods (7). A energizing coil (9) is fixedly connected to the inside of the tube body (1) below the second resistance plate (8). The energizing coil (9) is electrically connected to the electrode input end of the tube body (1). A fixing plate (10) is fixedly connected inside the tube body (1). A moving component (11) is provided on the fixing plate (10) to cooperate with the energizing coil (9) to drive the second resistance plate (8) to sequentially adhere to the first resistance plate (6). The moving component (11) includes three rotating wheels (12) arranged in a triangular pattern and rotatably connected to the fixed plate (10). A belt (13) is fitted on the rotating wheel (12). Multiple connecting plates (14) are fixedly connected to the belt (13) with gaps. A first compression spring (15) is fixedly connected to the connecting plate (14). A pressing plate (16) is connected to the first compression spring (15). A movable plate (17) connected and fixed to the second resistance plate (8) is pressed and fitted on the pressing plate (16). The rotating wheel (12) is also provided with a power component (18) that works with the energized coil (9) to drive the rotating wheel (12) to rotate. The power assembly (18) includes an electromagnetic plate (19) that cooperates with the energized coil (9). A connecting rod (20) is fixedly connected to the electromagnetic plate (19). A toothed plate (21) is fixedly connected to both ends of the connecting rod (20). A limiting frame (22) that is connected and fixed to the fixed plate (10) is sleeved on the outer surface of the toothed plate (21). A gear (23) that is connected and fixed to the central shaft of the rotating wheel (12) is meshed with the toothed plate (21). An elastic pull rope (24) that is connected to the tube body (1) is provided at the bottom of the connecting rod (20). The current shunt assembly (25) includes a residual current shunt device (26) disposed in the tube body (1), the output end of the residual current shunt device (26) extends out of the tube body (1), a movable groove (27) is provided on the first resistor plate (6), a conductive plate (28) is slidably fitted in the movable groove (27), the conductive plate (28) is connected to the residual current shunt device (26), a second compression spring (29) is attached between the conductive plate (28) and the movable groove (27), the side of the conductive plate (28) is in contact with the first resistor plate (6), a pressure plate (30) made of elastic material is also provided in the movable groove (27), and a switching assembly (31) is provided on the gear (23) to drive the pressure plate (30) to move along the movable groove (27).

2. A transistor with protection function according to claim 1, characterized in that: The switching assembly (31) includes a rotating rod (32) fixedly connected to the central shaft of the gear (23). A first sliding column (33) is fixedly connected to the rotating rod (32). A rotating plate (34) is rotatably connected to the fixed plate (10). A first sliding groove (35) and a second sliding groove (36) are respectively opened at the top and bottom of the rotating plate (34). The first sliding column (33) slides in the first sliding groove (35). A second sliding column (37) is slidably fitted in the second sliding groove (36). A sliding groove (38) communicating with the movable groove (27) is opened on the first resistor plate (6). A sliding rod (39) with a rectangular cross section is slidably fitted in the sliding groove (38). The second sliding column (37) slides in the sliding groove (38) and is fixedly connected to the sliding rod (39). A fitting assembly (40) is provided on the rotating rod (32) to promote the rotation of the rotating plate (34).

3. A transistor with protection function according to claim 2, characterized in that: The mating assembly (40) includes a first rotating shaft (41) rotatably connected to the rotating rod (32), a second rotating shaft (42) rotatably connected to the rotating plate (34), and a tension spring (43) is engaged between the first rotating shaft (41) and the second rotating shaft (42).

4. A transistor with protection function according to claim 3, characterized in that: The mating assembly (40) also includes a wedge plate (44) that is fixedly connected to the toothed plate (21). The inclined surface of the wedge plate (44) is in contact with an L-shaped rod (45), and the L-shaped rod (45) is fixedly connected to the central shaft of the gear (23).

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