CN115881395B - High-temperature-resistant inductor for lithium battery charger - Google Patents

Abstract

The invention belongs to the technical field of direct-insertion type inductors, in particular to an inductor for a high-temperature-resistant lithium battery charger, which comprises a framework and two windings, wherein the two windings are wound on the framework, a shielding plate is arranged on the inner side of the framework and between the two windings, the shielding plate and one end of the bottom of the framework are fixedly connected with the same packaging plate, and one end of the bottom of the packaging plate is fixedly connected with two pairs of pins. The invention has the advantages that the protection mechanism is arranged, so that the pins can be protected in the process of transporting the inductor, the phenomenon of bending damage of the inductor pins in the process of transporting the inductor can be effectively avoided, the convenience of protecting the pins in the process of transporting the inductor can be effectively improved, the connection between the inductor and the circuit board can be emergently released when the overheating phenomenon occurs in the process of using the inductor, and even spontaneous combustion caused by overheating damage in the process of using the inductor can be prevented.

Description

High-temperature-resistant inductor for lithium battery charger

Technical Field

The invention belongs to the technical field of direct-insertion type inductors, and particularly relates to a high-temperature-resistant inductor for a lithium battery charger.

Background

An Inductor (Inductor) is a component capable of converting electric energy into magnetic energy and storing it. The inductor is similar in structure to a transformer but has only one winding. The inductor has a certain inductance, which only impedes the current variation. If the inductor is in a state where no current is passing, it will attempt to block the flow of current through it when the circuit is on; if the inductor is in a state where current is flowing, it will attempt to maintain the current unchanged when the circuit is open. The inductor is also called choke, reactor and dynamic reactor.

The high-temperature-resistant direct-insert inductor is one of the inductors, and the existing direct-insert inductor still has the following defects in the use process:

1. the pin is easy to bend or even damage in the transportation process without a mechanism for protecting the pin in the transportation process, so that the direct-insert inductor is inconvenient to transport;

2. the structure of automatically disconnecting the inductor from the circuit board when the inductor is overheated is not provided, so that the phenomenon that the inductor is easy to damage or even self-ignite due to overheating is caused, and the service life and the use safety of the inductor are affected.

Therefore, it is necessary to invent an inductor for a lithium battery charger resistant to high temperature to solve the above problems.

Disclosure of Invention

In view of the above, the present invention provides a high temperature resistant inductor for a lithium battery charger, so as to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an inductance for high temperature resistant lithium cell charger, includes skeleton and two windings, two the winding is twined on the skeleton, the inboard of skeleton is provided with the shield plate, and the shield plate sets up between two windings, the same package plate of bottom one end joint fixedly connected with of shield plate and skeleton, the bottom one end fixedly connected with two pairs of pins of package plate, two the both ends of winding extend respectively to the below of package plate and with two pairs of pin fixed connection, the below of package plate is provided with can enough protect the pin in the transportation, can be when the inductance in-process intensifies again and extract the protection machanism of pin automatically.

Further, protection machanism is including setting up the mounting panel at encapsulation board bottom one end, the outside of mounting panel is provided with two pairs the bottom one end of encapsulation board is provided with the recess that uses with the mounting panel cooperation, the inside of recess is provided with the guide bar, and the both ends of guide bar respectively with recess inner wall fixed connection, the outside symmetry sliding connection of guide bar has the slider, two the bottom one end of slider all articulates there is the connecting rod, two the one end that the slider was kept away from to the connecting rod all articulates with the mounting panel, two the equal fixedly connected with first extension spring of one side that the slider is relative, two be provided with the baffle between the first extension spring, and two the outside at the guide bar is all movably sleeved with to two first extension springs, the cavity has been seted up jointly to the inside of encapsulation board and shield plate, the inside sliding connection of cavity has the fly leaf, the fixed connection of one side that the slider kept away from each other has the limiting plate of jack, the bottom one end fixedly connected with a pair of fly leaf and limiting plate cooperation use the one pair of inserted link, and the top of the extension spring is provided with the top of the extension spring of two extension springs, the top of the extension spring is connected to the top of the extension spring.

Further, the both sides of movable rod are provided with the stock solution chamber that holds heat release inflation liquid, two the inside in stock solution chamber all is provided with T shape pole, two the outside of round bar has all been movably sleeved with the third spring in the T shape pole, and two third springs set up respectively in the inside in two stock solution chambers, two the equal fixedly connected with L shape push pedal of one end that the T shape pole is close to each other, the outside fixed sleeve of movable rod has cup jointed the trapezoidal piece that uses with two L shape push pedal cooperation, two the equal fixedly connected with driving lever of top one end of L shape push pedal, and two shifting grooves that use with the driving lever cooperation have been seted up to the top one end of shielding plate, and two shifting grooves set up the both sides at the movable rod respectively.

Further, two one sides that T shape pole kept away from each other all are provided with the heat conduction ball, and two heat conduction balls set up respectively in the stock solution chamber, the both sides of shielding plate all are provided with the heat conduction board that uses with the winding cooperation, two the heat conduction board is respectively through a pair of heat conduction pole and two heat conduction ball fixed connection.

Furthermore, auxiliary mechanisms capable of preventing the protection mechanism from being blocked when the pins are pulled out and difficult to pull out are arranged on two sides of the cavity;

the auxiliary mechanism comprises an empty slot which is formed in two sides of a cavity, a pair of fourth springs are fixedly connected to the top of the inner wall of the empty slot, two pairs of T-shaped plates are fixedly connected to one ends of the bottoms of the fourth springs, two L-shaped plates which are matched with a limiting plate are arranged on one sides of the inserted bars which are far away from each other, movable slots which are matched with the two L-shaped plates are formed in the inside of the packaging plate, two positioning rods are fixedly connected to one sides of the L-shaped plates which are close to each other, two positioning rods are slidably connected to the inside of the packaging plate, two second tension springs are movably sleeved on the outer sides of the positioning rods, one ends of the second tension springs which are far away from each other are fixedly connected with the L-shaped plates, and limiting blocks which are matched with the T-shaped plates are fixedly connected to one sides of the L-shaped plates which are far away from the positioning rods.

Further, the top surfaces of the two sliding blocks are inclined planes, and the bottom surfaces of the two clamping blocks are inclined planes parallel to the top surfaces of the two sliding blocks respectively.

Further, the outer side of the packaging plate is provided with a notch matched with the two windings for use, and two ends of the two windings respectively penetrate through the corresponding notch and are fixedly connected with the pins.

Further, the T-shaped rod consists of a piston and a round rod arranged at one end of the piston, two pairs of through grooves matched with pins are formed in the surface of the mounting plate, and the cross section of one side opposite to the L-shaped push plate is parallel to the inclined plane of the trapezoid block.

Further, two sides of the limiting block, which are close to the empty groove, are all provided with inclined planes, and two sides of the T-shaped plate, which are opposite to one end of the top of the T-shaped plate, are all provided with inclined planes parallel to the inclined planes of the limiting block.

The invention has the technical effects and advantages that:

1. the protection mechanism is arranged, so that the pins can be protected in the process of transporting the inductor, the phenomenon of bending damage of the pins in the process of transporting the inductor can be effectively avoided, the convenience of protecting the pins in the process of transporting the inductor can be effectively improved, the connection between the inductor and the circuit board can be emergently released when the overheating phenomenon occurs in the process of using the inductor, the phenomenon of even spontaneous combustion due to overheating damage in the process of using the inductor can be prevented, the service life of the inductor can be effectively prolonged, and the safety of the inductor in the process of using the inductor is ensured.

2. According to the invention, the auxiliary mechanism is arranged, so that when the protection mechanism emergently breaks the connection between the inductor and the circuit board, the inductor is pushed to move in an auxiliary manner, the phenomenon that the pins are blocked in the jacks and are difficult to break can be effectively avoided, the use stability of the protection mechanism is improved, and the overall practicability of the inductor is increased.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a front view of an embodiment of the present invention;

FIG. 2 illustrates a bottom view of an embodiment of the present invention;

FIG. 3 shows a cutaway plan view of an embodiment of the present invention;

FIG. 4 shows a top plan view of an embodiment of the present invention;

FIG. 5 shows a partial schematic of an embodiment of the present invention;

FIG. 6 shows a partial schematic of an embodiment of the present invention;

FIG. 7 shows a partial left-cut view of the structure of an embodiment of the present invention;

FIG. 8 shows an enlarged schematic view of the structure of part A of an embodiment of the present invention;

in the figure: 1. a skeleton; 2. a winding; 3. a shielding plate; 4. a package plate; 5. pins; 6. a protective mechanism; 61. a mounting plate; 62. a guide rod; 63. a slide block; 64. a connecting rod; 65. a first tension spring; 66. a cavity; 67. a movable plate; 68. a clamping block; 69. a limiting plate; 70. a rod; 71. a movable rod; 72. a second spring; 73. a pull ring; 74. a liquid storage cavity; 75. a T-bar; 76. a third spring; 77. an L-shaped push plate; 78. a trapezoid block; 79. a deflector rod; 80. a heat conducting ball; 81. a heat conductive plate; 9. an auxiliary mechanism; 91. a hollow groove; 92. a fourth spring; 93. a T-shaped plate; 94. an L-shaped plate; 95. a positioning rod; 96. a second tension spring; 97. and a limiting block.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention provides an inductor for a high-temperature-resistant lithium battery charger, which is shown in fig. 1-8, and comprises a framework 1 and two windings 2, wherein the two windings 2 are wound on the framework 1, a shielding plate 3 is arranged on the inner side of the framework 1, the shielding plate 3 is arranged between the two windings 2, the shielding plate 3 and one end of the bottom of the framework 1 are fixedly connected with the same packaging plate 4 together, one end of the bottom of the packaging plate 4 is fixedly connected with two pairs of pins 5, two ends of the two windings 2 respectively extend to the lower parts of the packaging plate 4 and are fixedly connected with the two pairs of pins 5, and a protection mechanism 6 which can protect the pins 5 in the transportation process and automatically pull out the pins 5 when the inductor is heated in the use process is arranged below the packaging plate 4;

the protection mechanism 6 comprises a mounting plate 61 arranged at one end of the bottom of the packaging plate 4, two pairs of grooves matched with the mounting plate 61 are arranged at one end of the bottom of the packaging plate 4 outside the mounting plate 61, guide rods 62 are arranged inside the grooves, two ends of the guide rods 62 are fixedly connected with the inner walls of the grooves respectively, sliding blocks 63 are symmetrically and slidingly connected outside the guide rods 62, connecting rods 64 are hinged at one ends of the bottoms of the two sliding blocks 63, one ends of the two connecting rods 64 far away from the sliding blocks 63 are hinged with the mounting plate 61, first tension springs 65 are fixedly connected at one sides of the two sliding blocks 63, a partition plate is arranged between the two first tension springs 65, the two first tension springs 65 are movably sleeved outside the guide rods 62, cavities 66 are jointly formed inside the packaging plate 4 and the shielding plate 3, the inside sliding connection of cavity 66 has fly leaf 67, the one end fixedly connected with a pair of fixture blocks 68 that cooperate with slide block 63 to use of the ground step of fly leaf 67, two sides that slide block 63 kept away from each other all fixedly connect limiting plate 69 with jack, the one end fixedly connected with a pair of inserted bars 70 that cooperate with limiting plate 69 to use of bottom of fly leaf 67, and a pair of inserted bars 70 set up in the both sides of a pair of fixture blocks 68, the one end fixedly connected with fly leaf 71 of top of fly leaf 67, the one end fixedly connected with second spring 72 of top of fly leaf 67, and the second spring 72 is movably cup jointed in the outside of fly leaf 71, the one end of top of fly leaf 71 extends to the outside of shield 3 and fixedly connected with pull ring 73, and the one end of top of shield 3 is provided with the notch that cooperates with pull ring 73 and uses;

the two sides of the movable rod 71 are provided with liquid storage cavities 74 for containing heat-releasing expansion liquid, T-shaped rods 75 are arranged in the two liquid storage cavities 74, third springs 76 are movably sleeved outside round rods in the two T-shaped rods 75, the two third springs 76 are respectively arranged in the two liquid storage cavities 74, one ends of the two T-shaped rods 75, which are close to each other, are fixedly connected with L-shaped push plates 77, trapezoid blocks 78 matched with the two L-shaped push plates 77 are fixedly sleeved outside the movable rod 71, one ends of the tops of the two L-shaped push plates 77 are fixedly connected with deflector rods 79, two deflector grooves matched with the deflector rods 79 are formed in one ends of the tops of the shielding plates 3, and the two deflector grooves are respectively arranged on two sides of the movable rod 71;

the two heat conducting balls 80 are arranged on one sides of the two T-shaped rods 75, which are far away from each other, and the two heat conducting balls 80 are respectively arranged in the liquid storage cavity 74, the two sides of the shielding plate 3 are respectively provided with a heat conducting plate 81 matched with the winding 2, and the two heat conducting plates 81 are fixedly connected with the two heat conducting balls 80 through a pair of heat conducting rods respectively;

the top surfaces of the two sliding blocks 63 are inclined surfaces, and the bottom surfaces of the two clamping blocks 68 are inclined surfaces parallel to the top surfaces of the two sliding blocks 63 respectively;

the outer side of the packaging plate 4 is provided with a notch matched with the two windings 2, and two ends of the two windings 2 respectively pass through the corresponding notch and are fixedly connected with the pin 5;

the T-shaped rod 75 consists of a piston and a round rod arranged at one end of the piston, two pairs of through grooves matched with the pins 5 are formed in the surface of the mounting plate 61, and the cross section of the opposite side of the two L-shaped push plates 77 is an inclined plane parallel to the inclined plane of the trapezoid block 78;

when the inductor is installed, two pairs of screws penetrate through screw holes in the mounting plate 61, the mounting plate 61 is fixedly mounted on a circuit board by tightening the screws, then the movable rod 71 is pulled upwards through the pull ring 73, the movable rod 71 drives the two clamping blocks 68 and the two inserting rods 70 to move upwards through the movable plate 67 and press the second springs 72, so that the limiting and fixing effects of the two clamping blocks 68 on the two sliding blocks 63 are relieved, the inductor is pressed downwards, the two sliding blocks 63 respectively drive the two first tension springs 65 to stretch and separate from each other, the inductor is driven to integrally move towards the direction close to the mounting plate 61 through the two connecting rods 64, the mounting plate 61 is moved into a groove at one end of the bottom of the packaging plate 4 and is attached to the bottom surface of the packaging plate 4, and the two pairs of pins 5 at one end of the bottom of the packaging plate 4 are pushed to be inserted into corresponding connecting holes;

when the two sliding blocks 63 are far away from each other, the two sliding blocks 63 respectively drive the two limiting plates 69 to synchronously separate from each other, when the two limiting plates 69 move to the position below the two inserting rods 70, the pull ring 73 can be loosened, so that the movable plate 67 pushes the inserting rods 70 to move downwards for resetting under the resetting action of the second springs 72, the two inserting rods 70 are respectively inserted into the insertion holes on the surfaces of the two limiting plates 69, the positions of the limiting plates 69 are fixed, and the packaging plate 4 and the mounting plate 61 are fixed, so that the installation and the insertion of the inductor can be completed;

in the transportation process of the inductor, the pull ring 73 can be pulled to move upwards, so that the pull ring 73 drives the inserting rod 70 to move out of the limiting plate 69 under the cooperation of the structures, the limiting and fixing effects of the inserting rod 70 on the two limiting plates 69 are relieved, at the moment, the two sliding blocks 63 are respectively close to each other under the shrinkage and resetting effects of the two tension springs, so that the two sliding blocks 63 respectively push the mounting plate 61 to move away from the packaging plate 4 through the connecting rods 64, when the two sliding blocks 63 move to the position between the two clamping blocks 68, at the moment, the mounting plate 61 moves to the position of the bottom ends of the two pairs of pins 5, so that the pull ring 73 can be loosened, the movable plate 67 pushes the two clamping blocks 68 to move downwards under the cooperation of the structures, so that the two clamping blocks 68 are respectively positioned on one side of the two sliding blocks 63, which are far away from each other, the positions of the two sliding blocks 63 are fixed, and the distance between the unfolded mounting plate 61 and the packaging plate 4 is limited and fixed, so that a space is formed between the mounting plate 61 and the packaging plate 4, and effective protection on the two pairs of pins 5 can be realized in the transportation process;

when the inductance is heated and overheated in the use process, the two heat conducting plates 81 respectively transmit heat to the two heat conducting balls 80 in the liquid storage cavity 74 through the heat conducting rods, the two heat conducting balls 80 heat the heat expansion liquid and expand the volume, so that the expanded heat expansion liquid respectively pushes the two T-shaped rods 75 to move towards the direction close to the movable rods 71 and presses the third springs 76, the T-shaped rods 75 push the L-shaped push plates 77 to collide with the trapezoid blocks 78 and push the trapezoid blocks 78 to move upwards, the movable rods 71 are pushed to synchronously move upwards through the trapezoid blocks 78, the movable rods 71 drive the inserting rods 70 to move out of the limiting plates 69 through the cooperation between the structures, the limiting fixing effect of the inserting rods 70 on the two limiting plates 69 is relieved, the two connecting rods 64 push the inductance to move away from the mounting plates 61 under the cooperation between the structures, so that the inductance drives the two pairs of pins 5 to move out of jacks, and the connection between the inductance and the circuit board is disconnected urgently;

the protection mechanism 6 is arranged, so that the pins 5 can be protected in the process of transporting the inductor, the phenomenon of bending damage of the pins 5 in the process of transporting the inductor can be effectively avoided, the convenience of protecting the pins 5 in the process of transporting the inductor can be effectively improved, and when the inductor is overheated in the process of using the inductor, the connection between the inductor and the circuit board can be emergently released, the damage to the inductor due to overheating and even spontaneous combustion in the process of using the inductor can be prevented, the service life of the inductor can be effectively prolonged, and the safety of the inductor in the process of using the inductor can be ensured.

As shown in fig. 1-8, auxiliary mechanisms 9 capable of preventing the protection mechanism 6 from being blocked when the pin 5 is pulled out and difficult to pull out are arranged on two sides of the cavity 66;

the auxiliary mechanism 9 comprises empty slots 91 formed in two sides of the cavity 66, a pair of fourth springs 92 are fixedly connected to the tops of the inner walls of the two empty slots 91, a T-shaped plate 93 is fixedly connected to one end of the bottoms of the two pairs of fourth springs 92, L-shaped plates 94 matched with the limiting plate 69 are arranged on one sides, away from each other, of the two inserted bars 70, movable slots matched with the two L-shaped plates 94 are formed in the packaging plate 4, positioning rods 95 are fixedly connected to one sides, close to each other, of the two L-shaped plates 94, the two positioning rods 95 are slidably connected to the inside of the packaging plate 4, second tension springs 96 are movably sleeved on the outer sides of the two positioning rods 95, one ends, away from each other, of the two second tension springs 96 are fixedly connected with the L-shaped plates 94 respectively, one ends, close to each other, of the two second tension springs 96 are fixedly connected with the inner walls of the movable slots respectively, and one sides, away from the positioning rods 95, of the two L-shaped plates 94 are fixedly connected with limiting blocks 97 matched with the T-shaped plates 93;

one side of each limiting block 97 close to the empty groove 91 is provided with an inclined surface, and one side opposite to one end of the top of each T-shaped plate 93 is provided with an inclined surface parallel to the inclined surface of each limiting block 97;

in the process of installing the inductor, when the inductor moves towards the mounting plate 61, the two T-shaped plates 93 respectively move towards the inside of the empty slot 91 through the interference action with the mounting plate 61 and squeeze the fourth spring 92, and when the mounting plate 61 moves to a position attached to the bottom surface of the packaging plate 4, the T-shaped plates 93 respectively move to one side, away from each other, of the two limiting blocks 97, at the moment, the limiting plates 69 respectively move to the lower parts of the two inserting rods 70 and collide with the two L-shaped plates 94, and through the interference action with the two L-shaped plates 94, the limiting blocks 97 are pushed by the L-shaped plates 94 to move towards the direction close to the T-shaped plates 93 and stretch the second tension springs 96, so that the limiting blocks 97 are positioned below the transverse plates in the T-shaped plates 93, and limiting and fixing of the T-shaped plates 93 are realized while fixing the position of the mounting plate 61;

when the inductor is in use and the heating and overheating phenomenon occurs, the movable rod 71 is matched with the structure to drive the inserted rod 70 to move out of the limiting plates 69, the interference effect on the L-shaped plates 94 is relieved when the two limiting plates 69 move, at the moment, the L-shaped plates 94 respectively drive the limiting blocks 97 to move reversely and reset under the shrinkage reset effect of the two second tension springs 96, so that the limiting and fixing effect of the limiting blocks 97 on the T-shaped plates 93 is relieved, the T-shaped plates 93 move towards the outside of the empty slots 91 under the stretching reset effect of the two pairs of fourth springs 92, and the two connecting rods 64 push the inductor to move upwards through the interference effect between the T-shaped plates and the mounting plates 61, and the inductor is assisted to move upwards;

according to the invention, the auxiliary mechanism 9 is arranged, so that when the protection mechanism 6 is used for emergently disconnecting the inductor from the circuit board, the inductor is assisted to be pushed to move, the phenomenon that the pin 5 is blocked in the jack and is difficult to disconnect can be effectively avoided, the use stability of the protection mechanism 6 is improved, and the overall practicability of the inductor is increased.

Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. The utility model provides an inductance for high temperature resistant lithium cell charger, includes skeleton (1) and two windings (2), its characterized in that: the two windings (2) are wound on the framework (1), a shielding plate (3) is arranged on the inner side of the framework (1), the shielding plate (3) is arranged between the two windings (2), the shielding plate (3) and one end of the bottom of the framework (1) are fixedly connected with the same package plate (4) together, two pairs of pins (5) are fixedly connected to one end of the bottom of the package plate (4), two ends of the two windings (2) respectively extend to the lower part of the package plate (4) and are fixedly connected with the two pairs of pins (5), and a protection mechanism (6) which can protect the pins (5) in the transportation process and automatically pull out the pins (5) when the temperature rises in the use process of the inductor is arranged below the package plate (4);

the protection mechanism (6) comprises a mounting plate (61) arranged at one end of the bottom of the packaging plate (4), two pairs of grooves matched with the mounting plate (61) are formed in the outer side of the mounting plate (61), guide rods (62) are arranged in the grooves, two ends of the guide rods (62) are fixedly connected with the inner walls of the grooves respectively, sliding blocks (63) are symmetrically connected to the interiors of the guide rods (62) in a sliding mode, connecting rods (64) are hinged to one end of the bottom of each sliding block (63), one end, far away from each sliding block (63), of each connecting rod (64) is hinged to the mounting plate (61), one side, opposite to each sliding block (63), of each connecting rod is fixedly connected with a first tension spring (65), a partition plate is arranged between each first tension spring (65), each first tension spring (65) is movably sleeved on the outer portion of the guide rods (62), cavities (66) are formed in the interiors of the packaging plate (4) and the shielding plate (3) in a sliding mode, the interiors of the cavities (66) are connected in a sliding mode, one end, far away from each sliding block (67) is fixedly connected with one side, far away from each sliding block (68) of each sliding block (63), the bottom one end fixedly connected with a pair of inserted bars (70) that use with limiting plate (69) cooperation, and a pair of inserted bars (70) set up in the both sides of a pair of fixture block (68), the top one end fixedly connected with movable bar (71) of movable plate (67), the top one end fixedly connected with second spring (72) of movable plate (67), and second spring (72) activity cup joints in the outside of movable bar (71), the top one end of movable bar (71) extends to the outside of shield plate (3) and fixedly connected with pull ring (73), and the top one end of shield plate (3) is provided with the opening that uses with pull ring (73) cooperation;

the two sides of the movable rod (71) are provided with liquid storage cavities (74) for containing heat release expansion liquid, the interiors of the two liquid storage cavities (74) are respectively provided with a T-shaped rod (75), the exteriors of round rods in the two T-shaped rods (75) are respectively movably sleeved with a third spring (76), the two third springs (76) are respectively arranged in the interiors of the two liquid storage cavities (74), one ends of the two T-shaped rods (75) close to each other are respectively fixedly connected with an L-shaped push plate (77), the exteriors of the movable rod (71) are fixedly sleeved with trapezoid blocks (78) matched with the two L-shaped push plates (77), one ends of the tops of the two L-shaped push plates (77) are respectively fixedly connected with a deflector rod (79), two poking grooves matched with the deflector rod (79) are respectively arranged at one ends of the tops of the shielding plate (3), and the two poking grooves are respectively arranged at two sides of the movable rod (71);

two one sides that T shape pole (75) kept away from each other all are provided with heat conduction ball (80), and two heat conduction balls (80) set up respectively in stock solution chamber (74), the both sides of shield plate (3) all are provided with heat conduction board (81) that use with winding (2) cooperation, two heat conduction board (81) are through a pair of heat conduction pole and two heat conduction ball (80) fixed connection respectively.

2. The high temperature resistant inductor for lithium battery charger according to claim 1, wherein: auxiliary mechanisms (9) which can prevent the protection mechanism (6) from being blocked when the pin (5) is pulled out and are difficult to pull out are arranged on two sides of the cavity (66);

the utility model provides an assist mechanism (9) is including seting up empty slot (91) in cavity (66) both sides, two the equal fixedly connected with in inner wall top of empty slot (91) is a pair of fourth spring (92), two pairs the equal fixedly connected with T shaped plate (93) of bottom one end of fourth spring (92), two one side that inserted bar (70) kept away from each other all is provided with L shaped plate (94) that use with limiting plate (69) cooperation, and the inside of encapsulation board (4) is provided with the movable slot that uses with two L shaped plate (94) cooperation, two equal fixedly connected with locating lever (95) in one side that L shaped plate (94) are close to each other, two equal sliding connection of locating lever (95) is in the inside of encapsulation board (4), two the outside of locating lever (95) all has the movable sleeve joint second extension spring (96), two one end that second extension spring (96) kept away from each other respectively with L shaped plate (94) fixed connection, two one end that second extension spring (96) are close to each other respectively with the fixed connection of two L shaped plate (94) and the equal fixedly connected with one side that limiting block (95) kept away from each other.

3. The high temperature resistant inductor for lithium battery charger according to claim 2, wherein: the top surfaces of the two sliding blocks (63) are inclined planes, and the bottom surfaces of the two clamping blocks (68) are inclined planes parallel to the top surfaces of the two sliding blocks (63).

4. The high temperature resistant inductor for lithium battery charger according to claim 2, wherein: the outer side of the packaging plate (4) is provided with a notch matched with the two windings (2), and two ends of the two windings (2) respectively penetrate through the corresponding notch and are fixedly connected with the pins (5).

5. The high temperature resistant inductor for lithium battery charger according to claim 2, wherein: the T-shaped rod (75) consists of a piston and a round rod arranged at one end of the piston, two pairs of through grooves matched with the pins (5) are formed in the surface of the mounting plate (61), and the cross section of one side opposite to the L-shaped push plate (77) is an inclined plane parallel to the inclined plane of the trapezoid block (78).

6. The high temperature resistant inductor for lithium battery charger according to claim 2, wherein: one side of each limiting block (97) close to the empty groove (91) is provided with an inclined plane, and one side opposite to one end of the top of each T-shaped plate (93) is provided with an inclined plane parallel to the inclined plane of each limiting block (97).