A bistable infrared thermal imaging vehicle shutter

Abstract

The present invention discloses a bistable infrared thermal imaging vehicle shutter, wherein a fixed shell comprises a fixed base and a fixed cover plate, wherein a movable blade, a magnet crank assembly and a wire package assembly are embedded in a shell accommodating cavity of the fixed shell, wherein the magnet crank assembly comprises a movable crank and a movable magnet, wherein the movable crank comprises a magnet sleeve part, a crank drive arm and a crank drive shaft, and the movable magnet sleeve is fastened to the periphery of the magnet sleeve part; the movable blade is provided with a blade shading part and a blade drive part, wherein a blade pivot hole is provided between the blade shading part and the blade drive part, wherein a blade drive hole is provided in the blade drive part, wherein the crank drive shaft is inserted into the blade drive hole, wherein the blade pivot is matched with the blade pivot hole, wherein a pivot hole flange is provided at the edge of the blade pivot hole, wherein a drive hole flange is provided at the edge of the blade drive hole; wherein the edge of the blade shading part is bent to form a closed limit flange and an open limit flange. The present invention has the advantages of novel design, good stability and reliability, good collision and impact resistance and long service life.

Description

Technical Field

[0001] The invention relates to the technical field of shutters, and in particular to a bistable infrared thermal imaging vehicle-mounted shutter. Background Art

[0002] The shutter is a device in video equipment used to control the time that light shines on the photosensitive element and is an important component of cameras and camcorders.

[0003] The shutter structure generally includes a shading blade and a driving mechanism for driving the shading blade to move; when the shutter is closed, the shading blade blocks the light hole of the shutter; when the shutter is open, the shading blade avoids the light hole of the shutter.

[0004] It should be pointed out that for the shading blades in the existing shutter structure, they generally adopt a planar structure design. When the driving mechanism drives the shading blades to rotate and the shading blades to rotate, it is easy for the blades to be damaged due to impact at the extreme position, or to become unusable due to rapid wear, resulting in a short service life and poor stability and reliability.

[0005] It should be further pointed out that there are various forms of shutter structures in the prior art, and the existing shutter structures generally have defects such as unreasonable design, poor stability and reliability, poor collision and impact resistance, and short life. In particular, the defects of impact resistance and short life of the existing structures are particularly evident in infrared thermal imaging shutters. Summary of the invention

[0006] The purpose of the present invention is to provide a bistable infrared thermal imaging vehicle-mounted shutter to address the deficiencies of the prior art. The bistable infrared thermal imaging vehicle-mounted shutter has the advantages of novel structural design, good stability and reliability, good collision and impact resistance, and long wear resistance and life.

[0007] To achieve the above object, the present invention is implemented through the following technical solutions.

[0008] A bistable infrared thermal imaging vehicle shutter comprises a fixed shell, the fixed shell comprises a fixed base, a fixed cover plate installed on the upper end of the fixed base, a shell accommodating cavity is formed inside the fixed shell between the fixed base and the fixed cover plate; the fixed base is provided with a base through hole which completely penetrates up and down and is connected to the shell accommodating cavity, the fixed cover plate is provided with a cover plate through hole which completely penetrates up and down and is connected to the shell accommodating cavity, and the base through hole and the cover plate through hole are arranged in alignment up and down;

[0009] A magnet crank assembly and a wire package assembly for driving the magnet crank assembly to rotate are embedded in the housing cavity. The magnet crank assembly includes a movable crank and a movable magnet. The movable crank includes a vertically arranged magnet sleeve portion and a crank drive arm that is arranged at the upper end of the magnet sleeve portion and protrudes outward. The movable magnet sleeve is fastened to the periphery of the magnet sleeve portion of the movable crank, and a crank drive shaft is arranged at the free end of the crank drive arm.

[0010] A movable blade arranged horizontally and transversely is embedded in the housing accommodating cavity, the movable blade is provided with a blade shading portion and a blade driving portion, a blade pivot hole completely penetrating vertically is opened between the blade shading portion and the blade driving portion of the movable blade, a blade driving hole in an oblong shape and completely penetrating vertically is opened in the blade driving portion of the movable blade, and a crank driving shaft of the movable crank is inserted into the blade driving hole of the movable blade; a blade pivot is installed between the fixed base and the fixed cover plate, and the blade pivot is inserted into the blade pivot hole of the movable blade;

[0011] The edge of the blade pivot hole is provided with a pivot hole flange extending along the entire circumference of the blade pivot hole edge and protruding upward, and the edge of the blade drive hole is provided with a drive hole flange extending along the entire circumference of the blade drive hole edge and protruding upward, the pivot hole flange is in contact with the blade pivot, the crank drive shaft is in contact with the drive hole flange, and the pivot hole flange, the drive hole flange, and the movable blade are an integrated structure;

[0012] The edge of the blade shading portion is bent to form a closing limit flange and an opening limit flange, and the closing limit flange, the opening limit flange and the movable blade are an integrated structure;

[0013] When the bistable infrared thermal imaging vehicle-mounted shutter is in a closed state, the closing limit flange is limited against the fixed shell, and the blade shading portion of the movable blade is aligned with the base through hole and the cover through hole; when the bistable infrared thermal imaging vehicle-mounted shutter is in an open state, the opening limit flange is limited against the fixed shell, and the blade shading portion of the movable blade avoids the base through hole and the cover through hole.

[0014] The core of the movable magnet is provided with a magnet through hole which completely penetrates from top to bottom, the magnet sleeve portion of the movable crank handle is embedded in the magnet through hole of the movable magnet, and the magnet sleeve portion of the movable crank handle is interference fit with the magnet through hole;

[0015] The inner wall of the magnet through hole is provided with a vertically extending foolproof limit groove, and the magnet sleeve portion of the movable crank handle is provided with a foolproof limit boss corresponding to the foolproof limit groove, and the foolproof limit boss is embedded in the foolproof limit groove.

[0016] Among them, the inner wall of the magnet through hole of the movable magnet is provided with two radially aligned anti-foolproof limit grooves, and the magnet set of the movable crank handle is respectively provided with anti-foolproof limit bosses corresponding to each anti-foolproof limit groove, and each anti-foolproof limit boss is respectively embedded in the corresponding anti-foolproof limit groove.

[0017] The wire package assembly includes a U-shaped iron core which is horizontally arranged in a U-shape, and the U-shaped iron core is provided with two iron core straight rod portions which are opposite to each other and spaced apart and are respectively in the shape of straight rods, and the end portion of each iron core straight rod portion is respectively provided with an iron core magnetic pole portion, and the movable magnet is located between the two iron core magnetic pole portions;

[0018] One of the straight rod parts of the iron core is provided with a winding shaft, and the winding shaft is wrapped with a coil winding composed of enameled wire.

[0019] The winding shaft comprises a plastic body, the core of the plastic body is provided with a body through hole which completely penetrates the plastic body along the length direction, and one of the straight rods of the U-shaped iron core passes through the body through hole of the plastic body;

[0020] A main body base is provided in the middle of the plastic main body, a first winding groove surrounding the outer periphery of the main body through hole is provided on one side of the main body base, and a second winding groove surrounding the outer periphery of the main body through hole is provided on the other side of the main body base; the coil winding includes a first winding and a second winding connected in series, the first winding is wrapped in the first winding groove, and the second winding is wrapped in the second winding groove;

[0021] The first winding is connected in series with the second winding. The main body base is provided with a wire groove which has a lateral opening and connects the first winding groove and the second winding groove. The enameled wire connecting the first winding and the second winding passes through the wire groove of the main body base.

[0022] Among them, the main body base is provided with two metal PIN needles, one end of the enameled wire constituting the coil winding is connected to one of the metal PIN needles, and the other end of the enameled wire constituting the coil winding is connected to the other metal PIN needle.

[0023] The fixed base is provided with a base boss which protrudes upward and is located in the housing cavity of the shell, the blade pivot is arranged on the upper surface of the base boss, and the blade driving part of the movable blade is placed on the upper surface of the base boss.

[0024] The base boss, the blade pivot and the fixed base are an integrated structure.

[0025] Wherein, the fixed base is provided with an arc-shaped base arc flange extending in an arc shape corresponding to the blade shading portion of the movable blade, and the edge of the blade shading portion is placed on the upper surface of the base arc flange.

[0026] Wherein, the fixed base is provided with a closing blade limiting retaining wall corresponding to the closing limiting flange of the movable blade, and the fixed base is provided with an opening blade limiting retaining wall corresponding to the opening limiting flange of the movable blade;

[0027] The fixed base is provided with a closing handle limit stop wall and an opening handle limit stop wall corresponding to the handle driving arm of the movable handle;

[0028] When the bistable infrared thermal imaging vehicle-mounted shutter is in a closed state, the closing limit flange of the movable blade is limited against the closing blade limit stop wall of the fixed base, and the movable crank limit is against the closing crank limit stop wall of the fixed base; when the bistable infrared thermal imaging vehicle-mounted shutter is in an open state, the opening limit flange of the movable blade is limited against the opening blade limit stop wall of the fixed base, and the movable crank limit is against the opening crank limit stop wall of the fixed base.

[0029] Wherein, the central horizontal plane position of the movable magnet is located below the central horizontal plane position of the U-shaped iron core.

[0030] The beneficial effects of the present invention are as follows: a bistable infrared thermal imaging vehicle-mounted shutter described in the present invention, its fixed shell includes a fixed base and a fixed cover plate, a movable blade, a magnet crank assembly, and a wire package assembly for driving the magnet crank assembly to rotate are embedded in a shell accommodating cavity between the fixed base and the fixed cover plate, the magnet crank assembly includes a movable crank and a movable magnet, the movable crank includes a magnet sleeve part and a crank drive arm, the movable magnet sleeve is fastened to the periphery of the magnet sleeve part, and a crank drive shaft is arranged at the free end of the crank drive arm; the movable blade is provided with a blade shading part and a blade drive part, the movable blade is provided with a blade pivot hole between the blade shading part and the blade drive part, the blade drive part is provided with a blade drive hole, and the crank drive shaft is inserted into the blade drive hole; the blade pivot is matched with the blade pivot hole, the edge of the blade pivot hole is provided with a pivot hole flange, and the edge of the blade drive hole is provided with a drive hole flange; the edge of the blade shading part is bent to form a closing limit flange and an opening limit flange. Through the above structural design, the present invention has the advantages of novel structural design, good stability and reliability, good collision and impact resistance, and long wear resistance and life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is further described below with the aid of the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0032] Figure 1 It is a schematic diagram of the structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the decomposition of the present invention.

[0034] Figure 3 It is a cross-sectional schematic diagram of the present invention.

[0035] Figure 4 It is a schematic diagram of the local structure of the present invention in the open state.

[0036] Figure 5 It is a schematic diagram of the local structure of the present invention in a closed state.

[0037] Figure 6 It is a schematic diagram of the local structure of the present invention.

[0038] Figure 7 for Figure 6 Schematic diagram of the decomposition.

[0039] Figure 8 It is a schematic diagram of the structure of the movable blade of the present invention.

[0040] Fig. 9 It is a schematic structural diagram of the winding shaft of the present invention.

[0041] Fig.10 It is an exploded schematic diagram of the winding shaft of the present invention.

[0042] exist Figures 1 to 10 Included are:

[0043] 1——Fixed shell 11——Fixed base

[0044] 111——base through hole 112——blade pivot

[0045] 113——Base boss 114——Base arc flange

[0046] 1151——Close the blade limit stop wall 1152——Open the blade limit stop wall

[0047] 1153——Close the handle limit stop wall 1154——Open the handle limit stop wall

[0048] 116 - crank handle pivot 12 - fixed cover

[0049] 13——Housing chamber 2——Magnetic crank assembly

[0050] 21——Moveable crank 211——Magnet set

[0051] 2111——anti-foolproof limit boss 212——crank drive arm

[0052] 213——crank handle drive shaft 214——crank handle pivot hole

[0053] 22——Active magnet 221——Magnet through hole

[0054] 222——Function-proof limit slot 3——Wire package assembly

[0055] 31——U-shaped iron core 311——straight iron core

[0056] 312——iron core magnetic pole part 32——winding axis

[0057] 321——Plastic body 3211——Body through hole

[0058] 322——Main body base 3221——PIN needle insertion hole

[0059] 323——First winding groove 324——Second winding groove

[0060] 325——Wire groove 326——Metal PIN needle

[0061] 33——Fastening screw 4——Moving blade

[0062] 41——blade shading part 411——closed limit flange

[0063] 412——Open limit flange 42——Blade drive part

[0064] 421——Blade drive hole 422——Drive hole flange

[0065] 431——blade pivot hole 432——pivot hole flange. DETAILED DESCRIPTION

[0066] The present invention is described below in conjunction with specific implementation methods.

[0067] like Figures 1 to 5 As shown, a bistable infrared thermal imaging vehicle shutter includes a fixed shell 1, the fixed shell 1 includes a fixed base 11, a fixed cover plate 12 installed on the upper end of the fixed base 11, and a shell accommodating cavity 13 is formed inside the fixed shell 1 between the fixed base 11 and the fixed cover plate 12; the fixed base 11 is provided with a base through hole 111 that completely penetrates from top to bottom and is connected to the shell accommodating cavity 13, and the fixed cover plate 12 is provided with a cover plate through hole 121 that completely penetrates from top to bottom and is connected to the shell accommodating cavity 13, and the base through hole 111 and the cover plate through hole 121 are arranged in alignment with each other. Preferably, the fixed cover plate 12 of the present invention can be screwed and fastened to the upper end of the fixed base 11 by locking screws; of course, the above-mentioned screw fastening assembly method does not constitute a limitation to the present invention, and the fixed cover plate 12 of the present invention can also be installed on the upper end of the fixed base 11 by snap-fitting.

[0068] Among them, Figures 2 to 7As shown, the housing cavity 13 is embedded with a magnet crank assembly 2 and a wire package assembly 3 for driving the magnet crank assembly 2 to rotate. The magnet crank assembly 2 includes a movable crank 21 and a movable magnet 22. The movable crank 21 includes a vertically arranged magnet sleeve portion 211, a crank drive arm 212 disposed at the upper end of the magnet sleeve portion 211 and protruding outwardly, and the movable magnet 22 is sleeved and fastened to the outer periphery of the magnet sleeve portion 211 of the movable crank 21. The free end of the crank drive arm 212 is provided with a crank drive shaft 213. It should be pointed out that the core of the magnet sleeve portion 211 is provided with a crank pivot hole 214 that completely penetrates from top to bottom, and the fixed base 11 is provided with a crank pivot shaft 116 that protrudes upwardly and extends, and the crank pivot shaft 116 is embedded in the crank pivot hole 214 of the magnet sleeve portion 211, and the crank pivot shaft 116 and the fixed base 11 are an integral structure. In addition, for the movable crank 21, the magnet sleeve portion 211, the crank driving arm 212, and the crank driving shaft 213 are an integrated structure.

[0069] Further, such as Figures 2 to 8 As shown, a movable blade 4 arranged horizontally and transversely is embedded in the shell accommodating cavity 13, and the movable blade 4 is provided with a blade shading portion 41 and a blade driving portion 42. The movable blade 4 is provided with a blade pivot hole 431 that completely penetrates from top to bottom between the blade shading portion 41 and the blade driving portion 42. The movable blade 4 is provided with a blade driving hole 421 that is in an oblong shape and completely penetrates from top to bottom in the blade driving portion 42. The crank drive shaft 213 of the movable crank 21 is inserted into the blade driving hole 421 of the movable blade 4; a blade pivot 112 is installed between the fixed base 11 and the fixed cover plate 12, and the blade pivot 112 is inserted into the blade pivot hole 431 of the movable blade 4.

[0070] Furthermore, the edge of the blade pivot hole 431 is provided with a pivot hole flange 432 extending along the entire edge of the blade pivot hole 431 and protruding upward, and the edge of the blade drive hole 421 is provided with a drive hole flange 422 extending along the entire edge of the blade drive hole 421 and protruding upward, the pivot hole flange 432 is in contact with the blade pivot 112, and the crank drive shaft 213 is in contact with the drive hole flange 422, and the pivot hole flange 432, the drive hole flange 422, and the movable blade 4 are an integrated structure.

[0071] In addition, the edge of the blade shading portion 41 is bent to form a closing limit flange 411 and an opening limit flange 412, and the closing limit flange 411, the opening limit flange 412 and the movable blade 4 are an integrated structure.

[0072] During the working process of the present invention, the wire package assembly 3 drives the magnet crank assembly 2 to rotate, and the rotating movable crank 21 drives the blade driving part 42 of the movable blade 4 to rotate through the crank driving shaft 213 at the free end of the crank driving arm 212, so that the movable blade 4 rotates with the blade pivot 112 as the rotation center; when the bistable infrared thermal imaging vehicle-mounted shutter is in a closed state, the movable blade 4 rotates to a closed position, at which time the closing limit flange 411 is limited and abutted against the fixed shell 1, and the blade shading part 41 of the movable blade 4 is aligned with the base through hole 111 and the cover through hole 121, and the movable blade 4 is shielded; when the bistable infrared thermal imaging vehicle-mounted shutter is in an open state, the movable blade 4 rotates to an open position, at which time the opening limit flange 412 is limited and abutted against the fixed shell 1, and the blade shading part 41 of the movable blade 4 avoids the base through hole 111 and the cover through hole 121, and the movable blade 4 does not shield.

[0073] It should be pointed out that in the process of the rotating movable crank 21 driving the blade driving part 42 of the movable blade 4 to rotate through the crank drive shaft 213, the crank drive shaft 213 is inserted into the blade drive hole 421, and the crank drive shaft 213 contacts the drive hole flange 422 at the edge of the blade drive shaft. The contact structure between the above-mentioned crank drive shaft 213 and the movable blade 4 can effectively increase the friction contact surface and reduce friction loss, so as to extend the service life of the movable blade 4, and can also effectively increase the hanging amount between the movable blade 4 and the movable crank 21, so as to prevent the movable blade 4 from falling out.

[0074] Similarly, in the process of the rotating movable crank handle 21 driving the blade driving part 42 of the movable blade 4 to rotate via the crank handle driving shaft 213, the blade pivot 112 contacts the pivot hole flange 432 at the edge of the blade pivot hole 431 of the movable blade 4. The contact structure between the above-mentioned blade pivot 112 and the movable blade 4 can effectively increase the friction contact surface and reduce the friction loss, so as to extend the service life of the movable blade 4, and can also effectively increase the hanging amount between the movable blade 4 and the blade pivot 112, so as to prevent the movable blade 4 from falling out.

[0075] It should be emphasized that when the movable blade 4 rotates to the closed position or the open position, the blade shading portion 41 of the movable blade 4 contacts the fixed shell 1 through the closed limit flange 411 or the open limit flange 412. When the above-mentioned limit flange hits the fixed shell 1 through surface contact, the above-mentioned limit flange can play a role in buffering the impact, thereby effectively improving the service life of the movable blade 4.

[0076] In summary, it can be seen that through the above structural design, the present invention has the advantages of novel structural design, good stability and reliability, good collision and impact resistance, and long wear resistance and life.

[0077] As a preferred embodiment, the core of the movable magnet 22 is provided with a magnet through hole 221 that completely penetrates from top to bottom, and the magnet sleeve portion 211 of the movable crank 21 is embedded in the magnet through hole 221 of the movable magnet 22, and the magnet sleeve portion 211 of the movable crank 21 is interference fit with the magnet through hole 221. The inner wall of the magnet through hole 221 is provided with a vertically extending foolproof limit groove 222, and the magnet sleeve portion 211 of the movable crank 21 is provided with a foolproof limit boss 2111 corresponding to the foolproof limit groove 222, and the foolproof limit boss 2111 is embedded in the foolproof limit groove 222.

[0078] When the movable crank 21 and the movable magnet 22 are assembled together, the magnet sleeve portion 211 of the movable crank 21 is inserted from top to bottom into the magnet through hole 221 of the movable magnet 22 , and the magnet sleeve portion 211 and the magnet through hole 221 are interference fit.

[0079] It should be emphasized that since the anti-foolproof limit boss 2111 of the magnet sleeve 211 is embedded in the anti-foolproof limit groove 222 on the inner wall of the magnet through hole 221, the anti-foolproof limit boss 2111 cooperates with the anti-foolproof limit groove 222. The present invention can effectively improve the assembly accuracy of the movable magnet 22 and the movable crank 21, and can effectively avoid the relative movement between the movable magnet 22 and the movable crank 21. Even under the action of a large impact force, the movable crank 21 and the movable magnet 22 can still be guaranteed not to have relative movement, and the stability and reliability are good, and the service life is long.

[0080] In addition, the present invention does not limit the number of foolproof limit grooves 222 on the inner wall of the magnet through hole 221. Figure 7 As shown, two fool-proof limit grooves 222 can be set on the inner wall of the magnet through hole 221. Specifically: the inner wall of the magnet through hole 221 of the movable magnet 22 is provided with two radially aligned fool-proof limit grooves 222, and the magnet set of the movable crank handle 21 is respectively provided with fool-proof limit bosses 2111 corresponding to each fool-proof limit groove 222, and each fool-proof limit boss 2111 is respectively embedded in the corresponding fool-proof limit groove 222.

[0081] As a preferred embodiment, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 as well as Fig.10As shown, the coil assembly 3 includes a U-shaped iron core 31 which is U-shaped and horizontally arranged, the U-shaped iron core 31 is provided with two iron core straight rod portions 311 which are opposite to each other and spaced apart and are respectively in the shape of straight rods, the end portion of each iron core straight rod portion 311 is respectively provided with an iron core magnetic pole portion 312, and the movable magnet 22 is located between the two iron core magnetic pole portions 312; one of the iron core straight rod portions 311 is provided with a winding shaft 32, and the winding shaft 32 is wrapped with a coil winding composed of enameled wire (not shown in the figure).

[0082] For the wire package assembly 3 of the present invention, a wire package installation groove that is consistent with the outline shape of the wire package assembly 3 is provided in the housing accommodating cavity 13 of the present invention, and the wire package assembly 3 is positioned and placed in the wire package installation groove, so as to position the wire package assembly 3 through the wire package installation groove. Among them, the wire package assembly 3 can be fixed by clamping and fixing, specifically: the wire package assembly 3 is clamped and fixed between the fixed cover plate 12 and the fixed base 11; of course, the wire package assembly 3 can also be fixed by screw fastening, specifically: as Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the fixing base 11 is threaded with a fastening screw 33 , and the U-shaped iron core 31 of the wire package assembly 3 is clamped and fixed to the fixing base 11 by the fastening screw 33 .

[0083] When the coil assembly 3 drives the magnet crank assembly 2 to rotate, the coil winding is energized and magnetizes the U-shaped iron core 31. The two core magnetic pole portions 312 of the magnetized U-shaped iron core 31 act as two magnetic poles. The magnetic force of the two magnetic poles acts on the movable magnet 22 to make the movable magnet 22 rotate. The rotating movable magnet 22 then drives the movable crank 21 to rotate synchronously. The rotating movable crank 21 drives the movable blade 4 to move through the crank drive shaft 213 at the free end of its crank drive portion.

[0084] As a preferred embodiment, Figure 6 , Figure 7 , Fig. 9 as well as Fig.10 As shown, the winding shaft 32 includes a plastic body 321 , the core of the plastic body 321 is provided with a body through hole 3211 that completely penetrates the plastic body 321 along the length direction, and one of the core straight rod portions 311 of the U-shaped iron core 31 passes through the body through hole 3211 of the plastic body 321 .

[0085] A main body base 322 is provided in the middle of the plastic main body 321, and a first winding groove 323 surrounding the outer periphery of the main body through hole 3211 is provided on one side of the main body base 322 of the plastic main body 321, and a second winding groove 324 surrounding the outer periphery of the main body through hole 3211 is provided on the other side of the main body base 322 of the plastic main body 321; the coil winding includes a first winding (not shown in the figure) and a second winding (not shown in the figure) connected in series, the first winding is wrapped in the first winding groove 323, and the second winding is wrapped in the second winding groove 324.

[0086] The first winding and the second winding are connected in series. The main body base 322 is provided with a wire groove 325 which is open laterally and connects the first winding groove 323 and the second winding groove 324 . The enameled wire connecting the first winding and the second winding passes through the wire groove 325 of the main body base 322 .

[0087] In addition, the main body base 322 is provided with two metal PIN pins 326, one end of the enameled wire constituting the coil winding is connected to one of the metal PIN pins 326, and the other end of the enameled wire constituting the coil winding is connected to the other metal PIN pin 326. The two metal PIN pins 326 and the plastic main body 321 are injection molded into an integral structure; or, the main body base 322 is provided with PIN pin insertion holes 3221 corresponding to each metal PIN pin 326, and each metal PIN pin 326 is respectively inserted and fixed in the corresponding PIN pin insertion hole 3221.

[0088] It should be emphasized that the winding shaft 32 of the present invention is designed as a double winding area and double wire package structure. The winding shaft 32 of the present invention is a hard plastic part, and the winding shaft 32 is processed by injection molding. The two winding areas of the winding shaft 32 are arranged in a straight line and cannot be bent. By winding the first winding in the first winding groove 323 and the second winding in the second winding groove 324, the winding shaft 32 of the present invention can effectively increase the winding space, thereby effectively improving the power of the magnetic valve, and can flexibly adjust the wire package resistance, wire diameter, number of turns, etc.

[0089] The two metal PIN needles 326 of the present invention are installed on the main body base 322, and the main body base 322 has a large installation space. When the two metal PIN needles 326 are electrically connected through a PCB or FPC, the main body base 322 can increase the installation strength of the two metal PIN needles 326 on the one hand, and can effectively increase the installation strength of the PCB or FPC on the other hand.

[0090] As a preferred embodiment, Figures 2 to 5As shown, the fixed base 11 is provided with a base boss 113 protruding upward and located in the housing accommodating cavity 13, the blade pivot 112 is provided on the upper surface of the base boss 113, and the blade driving part 42 of the movable blade 4 is placed on the upper surface of the base boss 113. Preferably, the base boss 113, the blade pivot 112, and the fixed base 11 are an integrated structure.

[0091] In addition, the fixed base 11 is provided with an arc-shaped base arc flange 114 corresponding to the blade light shielding portion 41 of the movable blade 4 , and the edge of the blade light shielding portion 41 is placed on the upper surface of the base arc flange 114 .

[0092] When the movable crank handle 21 drives the movable blade 4 to rotate with the blade pivot 112 as the rotation center, the lower surface of the movable blade 4 is placed on the upper surface of the base boss 113 and the upper surface of the base arc flange 114; the present invention supports the movable blade 4 through the base boss 113 and the base arc flange 114, which can effectively reduce the contact area between the lower surface of the movable blade 4 and the fixed base 11, thereby reducing the contact friction force when the movable blade 4 rotates, so as to improve the smoothness of the rotation of the movable blade 4.

[0093] As a preferred embodiment, Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As shown, the fixed base 11 is provided with a closing blade limiting stop wall 1151 corresponding to the closing limit flange 411 of the movable blade 4, and the fixed base 11 is provided with an opening blade limiting stop wall 1152 corresponding to the opening limit flange 412 of the movable blade 4; the fixed base 11 is provided with a closing crank limit stop wall 1153 and an opening crank limit stop wall 1154 corresponding to the crank driving arm 212 of the movable crank 21.

[0094] During the working process of the present invention, when the bistable infrared thermal imaging vehicle-mounted shutter is in a closed state, the closing limit flange 411 of the movable blade 4 is limited and abutted against the closing blade limit stop wall 1151 of the fixed base 11, and the movable crank handle 21 is limited and abutted against the closing crank handle limit stop wall 1153 of the fixed base 11; when the bistable infrared thermal imaging vehicle-mounted shutter is in an open state, the opening limit flange 412 of the movable blade 4 is limited and abutted against the opening blade limit stop wall 1152 of the fixed base 11, and the movable crank handle 21 is limited and abutted against the opening crank handle limit stop wall 1154 of the fixed base 11.

[0095] For the above-mentioned double limit structure design consisting of the crank limit and the blade limit, when the movable blade 4 rotates to a closed state or an open state, the present invention can effectively reduce the impact force at the limit of the movable blade 4, the movable crank handle 21 and the fixed base 11, thereby improving the service life of the present invention.

[0096] As a preferred embodiment, Figure 3 As shown, the center horizontal plane position of the movable magnet 22 is located below the center horizontal plane position of the U-shaped iron core 31.

[0097] Since the centers of the movable blades 4 and the movable magnet 22 are designed to be offset, when the inline assembly 3 is energized and drives the magnet crank assembly 2 to rotate, the two core magnetic poles 312 of the U-shaped iron core 31 act magnetically on the movable magnet 22, and since the central horizontal plane position of the movable magnet 22 is located below the central horizontal plane position of the U-shaped iron core 31, the movable magnet 22 is always subjected to an upward suction force F. The suction force F can ensure that the movable magnet 22 is in a state to avoid the problem of Z-axis movement of the magnet crank assembly 2, thereby achieving the purpose of improving the stability and reliability of the operation.

[0098] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A bistable infrared thermal imaging vehicle shutter, Features: The fixed housing (1) comprises a fixed base (11) and a fixed cover plate (12) mounted on the upper end of the fixed base (11); a housing accommodating cavity (13) is formed inside the fixed housing (1) between the fixed base (11) and the fixed cover plate (12); the fixed base (11) is provided with a base through hole (111) which completely penetrates the fixed base (11) and is in communication with the housing accommodating cavity (13); the fixed cover plate (12) is provided with a cover plate through hole (121) which completely penetrates the fixed base (11) and is in communication with the housing accommodating cavity (13); the base through hole (111) and the cover plate through hole (121) are arranged in an aligned manner; A magnet crank assembly (2) and a wire package assembly (3) for driving the magnet crank assembly (2) to rotate are embedded in the housing cavity (13); the magnet crank assembly (2) comprises a movable crank (21) and a movable magnet (22); the movable crank (21) comprises a vertically arranged magnet sleeve portion (211) and a crank drive arm (212) disposed at the upper end of the magnet sleeve portion (211) and extending outwardly; the movable magnet (22) is sleeved and fastened to the periphery of the magnet sleeve portion (211) of the movable crank (21); and a crank drive shaft (213) is disposed at the free end of the crank drive arm (212); A movable blade (4) arranged horizontally is embedded in the housing cavity (13). The movable blade (4) is provided with a blade shading portion (41) and a blade driving portion (42). A blade pivot hole (431) completely passing through the movable blade (4) is provided between the blade shading portion (41) and the blade driving portion (42). The movable blade (4) is provided with an oblong blade driving hole (421) completely passing through the movable blade (4) in the blade driving portion (42). The crank driving shaft (213) of the movable crank (21) is inserted into the blade driving hole (421) of the movable blade (4). A blade pivot shaft (112) is installed between the fixed base (11) and the fixed cover plate (12). The blade pivot shaft (112) is inserted into the blade pivot hole (431) of the movable blade (4). The edge of the blade pivot hole (431) is provided with a pivot hole flange (432) extending along the entire edge of the blade pivot hole (431) and protruding upwards, and the edge of the blade drive hole (421) is provided with a drive hole flange (422) extending along the entire edge of the blade drive hole (421) and protruding upwards, the pivot hole flange (432) is in contact with the blade pivot (112), the crank drive shaft (213) is in contact with the drive hole flange (422), and the pivot hole flange (432), the drive hole flange (422) and the movable blade (4) are an integrated structure; The edge of the blade light shielding portion (41) is bent to form a closing limit flange (411) and an opening limit flange (412); the closing limit flange (411), the opening limit flange (412) and the movable blade (4) are an integrated structure; When the bistable infrared thermal imaging vehicle shutter is in a closed state, the closing limit flange (411) is limited against the fixed housing (1), and the blade light shielding portion (41) of the movable blade (4) is aligned with the base through hole (111) and the cover plate through hole (121); when the bistable infrared thermal imaging vehicle shutter is in an open state, the opening limit flange (412) is limited against the fixed housing (1), and the blade light shielding portion (41) of the movable blade (4) avoids the base through hole (111) and the cover plate through hole (121); The core of the movable magnet (22) is provided with a magnet through hole (221) which completely penetrates from top to bottom, the magnet sleeve portion (211) of the movable crank handle (21) is embedded in the magnet through hole (221) of the movable magnet (22), and the magnet sleeve portion (211) of the movable crank handle (21) and the magnet through hole (221) are interference fit; The inner wall of the magnet through hole (221) is provided with a vertically extending foolproof limit groove (222); the magnet sleeve portion (211) of the movable crank handle (21) is provided with a foolproof limit boss (2111) corresponding to the foolproof limit groove (222); and the foolproof limit boss (2111) is embedded in the foolproof limit groove (222); The coil assembly (3) comprises a U-shaped iron core (31) which is U-shaped and horizontally arranged, the U-shaped iron core (31) being provided with two iron core straight rod portions (311) which are opposite to each other and spaced apart and are respectively in the shape of straight rods, the end portion of each iron core straight rod portion (311) being provided with an iron core magnetic pole portion (312), the movable magnet (22) being located between the two iron core magnetic pole portions (312); one of the iron core straight rod portions (311) is sleeved with a winding shaft (32), and the winding shaft (32) is wound with a coil winding composed of enameled wire.

2. The bistable infrared thermal imaging vehicle shutter according to claim 1, Features: The inner wall of the magnet through hole (221) of the movable magnet (22) is provided with two radially aligned anti-foolproof limit grooves (222), and the magnet set of the movable crank handle (21) is respectively provided with anti-foolproof limit bosses (2111) corresponding to each anti-foolproof limit groove (222), and each anti-foolproof limit boss (2111) is respectively embedded in the corresponding anti-foolproof limit groove (222).

3. The bistable infrared thermal imaging vehicle shutter according to claim 1, Features: The winding shaft (32) comprises a plastic body (321), the core of the plastic body (321) is provided with a body through hole (3211) which completely penetrates the plastic body (321) along the length direction, and one of the iron core straight rod parts (311) of the U-shaped iron core (31) passes through the body through hole (3211) of the plastic body (321); A main body base (322) is provided in the middle of the plastic main body (321); a first winding groove (323) surrounding the periphery of the main body through hole (3211) is provided on one side of the main body base (322) of the plastic main body (321); a second winding groove (324) surrounding the periphery of the main body through hole (3211) is provided on the other side of the main body base (322) of the plastic main body (321); the coil winding comprises a first winding and a second winding connected in series; the first winding is wound in the first winding groove (323), and the second winding is wound in the second winding groove (324); The first winding and the second winding are connected in series, and the main body base (322) is provided with a wire groove (325) with a lateral opening and connecting the first winding groove (323) and the second winding groove (324), and the enameled wire connecting the first winding and the second winding passes through the wire groove (325) of the main body base (322).

4. The bistable infrared thermal imaging vehicle shutter according to claim 3, Features: The main body base (322) is provided with two metal PIN needles (326), one end of the enameled wire constituting the coil winding is connected to one of the metal PIN needles (326), and the other end of the enameled wire constituting the coil winding is connected to the other metal PIN needle (326).

5. The bistable infrared thermal imaging vehicle shutter according to claim 1, Features: The fixed base (11) is provided with a base boss (113) protruding upward and located in the housing accommodating cavity (13); the blade pivot (112) is provided on the upper surface of the base boss (113); and the blade driving part (42) of the movable blade (4) is placed on the upper surface of the base boss (113); The base boss (113), the blade pivot (112) and the fixed base (11) are an integrated structure.

6. The bistable infrared thermal imaging vehicle shutter according to claim 5, Features: The fixed base (11) is provided with an arc-shaped base arc flange (114) corresponding to the blade shading portion (41) of the movable blade (4), and the edge of the blade shading portion (41) is placed on the upper surface of the base arc flange (114).

7. The bistable infrared thermal imaging vehicle shutter according to claim 1, Features: The fixed base (11) is provided with a closing blade limiting stop wall (1151) corresponding to the closing limiting flange (411) of the movable blade (4), and the fixed base (11) is provided with an opening blade limiting stop wall (1152) corresponding to the opening limiting flange (412) of the movable blade (4); The fixed base (11) is provided with a closed crank limit stop wall (1153) and an open crank limit stop wall (1154) corresponding to the crank drive arm (212) of the movable crank (21); When the bistable infrared thermal imaging vehicle-mounted shutter is in a closed state, the closing limit flange (411) of the movable blade (4) is limited against the closing blade limit stop wall (1151) of the fixed base (11), and the movable crank handle (21) is limited against the closing crank handle limit stop wall (1153) of the fixed base (11); when the bistable infrared thermal imaging vehicle-mounted shutter is in an open state, the opening limit flange (412) of the movable blade (4) is limited against the opening blade limit stop wall (1152) of the fixed base (11), and the movable crank handle (21) is limited against the opening crank handle limit stop wall (1154) of the fixed base (11).

8. The bistable infrared thermal imaging vehicle shutter according to claim 1, Features: The central horizontal plane position of the movable magnet (22) is located below the central horizontal plane position of the U-shaped iron core (31).

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