CN111276329A

CN111276329A - Automatic heat dissipation device for capacitor and use method thereof

Info

Publication number: CN111276329A
Application number: CN202010089946.5A
Authority: CN
Inventors: 朱利利
Original assignee: Individual
Current assignee: Ganzhou Jingxin Electric Power Co ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-06-12
Anticipated expiration: 2040-02-13
Also published as: CN111276329B

Abstract

The invention relates to the field of capacitor heat dissipation, in particular to an automatic heat dissipation device for a capacitor and a using method thereof. According to the automatic heat dissipation device for the capacitor and the using method of the automatic heat dissipation device, power is provided by heat generated by the capacitor, so that the heat driving mechanism drives the heat dissipation mechanism to carry out heat dissipation treatment on the capacitor, the heat dissipation efficiency is improved, the technical requirement on high-temperature sealing performance is reduced, the heat driving mechanism can drive the alarm triggering mechanism to automatically alarm, the effect of overheating early warning protection is played, and great loss is avoided.

Description

Automatic heat dissipation device for capacitor and use method thereof

Technical Field

The invention relates to the field of capacitor heat dissipation, in particular to an automatic heat dissipation device for a capacitor and a using method thereof.

Background

A capacitor is a very frequently used electric device, which generates a large amount of heat during use, and thus a heat dissipation process of the capacitor must be considered. The existing capacitor adopts fixed heat-conducting fins for heat dissipation, the heat dissipation effect is limited, and the processing technology of the heat-conducting fins is complicated; or the capacitor is immersed in oil for heat dissipation treatment, but the oil does not flow, so that high pressure is easily generated when the temperature of the oil rises, and the requirement on high-temperature sealing property is high. In view of the above, an automatic heat dissipation device for a capacitor and a method for using the same are provided.

Disclosure of Invention

The present invention is directed to an automatic heat dissipation device for a capacitor and a method for using the same to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an automatic heat abstractor is used to condenser, including shell and inner shell, the inner shell sets up inside the shell, and the condenser setting is inside the inner shell, is provided with the cavity between inner shell and the shell, just the cavity intussuseption is filled with the coolant liquid, is provided with hot actuating mechanism and heat dissipation mechanism on the lateral wall of shell, and hot actuating mechanism and heat dissipation mechanism drive connection, and the outside bottom of shell is fixed with the alarm box, and the inside alarm trigger mechanism that is provided with of alarm box, and hot actuating mechanism and alarm trigger mechanism transmission are connected.

Preferably, the thermal driving mechanism comprises a thermal sensitive bimetallic strip, the upper end of the thermal sensitive bimetallic strip is fixed on the shell, the lower end of the thermal sensitive bimetallic strip is hinged with the upper end of the connecting rod, the lower end of the connecting rod is hinged with the upper end of the first rack, the first rack is slidably connected in a sliding sleeve fixed on the outer side wall of the shell, and the first rack can slide up and down in the sliding sleeve.

Preferably, the heat dissipation mechanism is including fixing a plurality of supports on the shell lateral wall, and the support is located one side of rack one, and is a plurality of the support is from last to equidistant setting down along the trend of rack one, and the dead axle rotates on the support to be connected with the axostylus axostyle, and axostylus axostyle and rack one are different from the face perpendicular, is fixed with the gear on the axostylus axostyle, and a gear and a rack meshing are connected.

Preferably, the heat dissipation mechanism still includes a plurality of heating panels, and heating panel and support one-to-one, and one side of heating panel is fixed with the bull stick, and the bull stick is perpendicular with this side, and the one end that the heating panel was kept away from to the bull stick is fixed with the ring gear, and the center department dead axle of ring gear rotates and is connected with the pivot, and the one end and the gear fixed connection of ring gear are kept away from in the pivot, and the central axis of pivot is perpendicular with the central axis of gear, is fixed with rack two on the support, and the ring gear can.

Preferably, the inside of heating panel is hollow structure, and the inside intercommunication of feed liquor pipe and heating panel is passed through on the cavity upper portion between shell and the inner shell, and is connected with check valve one on the feed liquor pipe, the inside of the directional heating panel of the direction that switches on of check valve one, the drain pipe intercommunication is passed through to the cavity lower part between the inside of heating panel and shell and the inner shell, and is connected with check valve two on the drain pipe, the cavity between the directional shell of the direction that switches on of check valve two and inner shell.

Preferably, the lower end of the rack penetrates through the top wall of the alarm box and is located inside the alarm box, the rack can move up and down relative to the alarm box, an upper convex block and a lower convex block are fixed at the lower end of the rack and located above the lower convex block, and the upper convex block and the lower convex block can be in abutting contact with an alarm triggering mechanism inside the alarm box.

Preferably, alarm trigger mechanism includes two branches, and two branch is fixed on the inside bottom surface of alarm box, and two the vertical upwards and mutual parallel arrangement of branch, the upper end dead axle of branch rotates adapter sleeve's middle part, and two the sleeve pipe symmetry formula sets up, two the one end sliding connection that the sleeve pipe is close to each other has the slide bar, and the sheathed tube one end that its correspondence was kept away from to the slide bar is fixed with the round pin head, and spring coupling is passed through with sheathed tube tip to the round pin head.

Preferably, a pressing block is arranged between the two pin heads, the pin heads are rotationally connected with one side of the pressing block in a dead axle mode, one end, far away from the sliding rod, of each sleeve is located between the upper convex block and the lower convex block, and the upper convex block and the lower convex block can be in abutting contact with the end portion of each sleeve.

Preferably, the alarm triggering mechanism further comprises a key switch, a storage battery and an audible and visual alarm, the key switch, the storage battery and the audible and visual alarm are connected in series through a conducting wire, the key switch and the storage battery are fixed on the bottom surface of the inner portion of the alarm box, the key switch is located right below the pressing block, and the audible and visual alarm is fixed on the upper surface of the outer side of the alarm.

In a second aspect of the present application, a method for using an automatic heat dissipation device for a capacitor is further provided, including the following steps:

the method comprises the following steps: after the capacitor works, the heat generated by the capacitor provides power for the heat driving mechanism, so that the heat driving mechanism drives the heat dissipation mechanism to work to dissipate heat of the capacitor;

step two: the cooling liquid forms a circulating flow state while the heat dissipation mechanism dissipates heat, so that the heat dissipation effect is improved;

step three: and an alarm triggering mechanism is used for automatically alarming when the capacitor works abnormally.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, power is provided by using heat generated by the capacitor, so that the heat driving mechanism drives the heat dissipation mechanism to carry out heat dissipation treatment on the capacitor, the heat dissipation efficiency is improved, and the technical requirement on high-temperature sealing performance is reduced, so that the production and manufacturing are easy, the processing difficulty is reduced, the practicability is improved, when the capacitor works abnormally, the heat driving mechanism drives the alarm triggering mechanism to automatically alarm, the working abnormity of a worker is reminded, the power failure treatment on the capacitor is timely carried out, the overheating early warning protection effect is played, and the generation of larger loss is avoided.

Drawings

FIG. 1 is a first schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 3 is a third schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is an enlarged view of the structure at B in FIG. 3;

fig. 6 is a schematic view of the cross-sectional structure C-C of fig. 4.

In the figure: 1-a housing; 2-inner shell; 3-a thermally sensitive bimetallic strip; 4-a connecting rod; 5, a first rack; 6-sliding sleeve; 7-a scaffold; 8-shaft lever; 9-gear; 10-a heat sink; 11-a gear ring; 12-rack two; 13-an alarm box; 14-a liquid inlet pipe; 15-one-way valve one; 16-a rotating rod; 17-a rotating shaft; 18-a liquid outlet pipe; 19-a one-way valve II; 20-upper bump; 21-lower bump; 22-a strut; 23-a sleeve; 24-a slide bar; 25-pin head; 26-a spring; 27-briquetting; 28-key switch; 29-a storage battery; 30-audible and visual alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution:

the utility model provides an automatic heat abstractor is used to condenser, includes shell 1 and inner shell 2, and inner shell 2 sets up inside shell 1, and the condenser setting is inside inner shell 2, is provided with the cavity between inner shell 2 and the shell 1, just the cavity intussuseption is filled with the coolant liquid, and outer shell 1 and inner shell 2 all adopt heat conduction material, for example copper, and the coolant liquid adopts silicate type coolant liquid, are provided with hot actuating mechanism and heat dissipation mechanism on the lateral wall of shell 1, and hot actuating mechanism is connected with the drive of heat dissipation mechanism, and the outside bottom of shell 1 is fixed with alarm box 13, and the inside alarm trigger mechanism that is provided with of alarm box 13, and hot actuating mechanism is connected with alarm trigger mechanism transmission.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 3, the thermal driving mechanism includes a thermal sensitive bimetallic strip 3, the thermal sensitive bimetallic strip 3 utilizes a lamellar structure composed of two metal sheets with different thermal expansion coefficients, and when being heated, the deformation of the active layer is greater than that of the passive layer, so that the whole thermal sensitive bimetallic strip 3 is bent to one side of the passive layer, which is not described again in this application of the prior art. The upper end of the thermosensitive bimetallic strip 13 is fixed on the shell 1, the lower end of the thermosensitive bimetallic strip 13 is hinged with the upper end of the connecting rod 4, the lower end of the connecting rod 4 is hinged with the upper end of the first rack 5, the first rack 5 is slidably connected in the sliding sleeve 6 fixed on the outer side wall of the shell 1, and the first rack 5 can slide up and down in the sliding sleeve 6.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, the heat dissipation mechanism includes a plurality of supports 7 fixed on the outer sidewall of the housing 1, the supports 7 are located on one side of the first rack 5, and the plurality of supports 7 are arranged at equal intervals from top to bottom along the direction of the first rack 5, a shaft lever 8 is rotationally connected to the supports 7 in a fixed-axis manner, the shaft lever 8 is perpendicular to the first rack 5 in a non-coplanar manner, a gear 9 is fixed on the shaft lever 8, and the gear 9 is engaged with the first rack 5.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, the heat dissipation mechanism further includes a plurality of heat dissipation plates 10, the heat dissipation plates 10 are made of a heat conductive material, such as copper, aluminum, and the like, and the heat dissipation plates 10 correspond to the brackets 7 one to one, a rotating rod 16 is fixed on one side of the heat dissipation plates 10, and the rotating rod 16 is perpendicular to the side, a gear ring 11 is fixed on one end of the rotating rod 16 away from the heat dissipation plates 10, a rotating shaft 17 is connected to a center of the gear ring 11 in a fixed-axis rotating manner, and one end of the rotating shaft 17 away from the gear ring 11 is fixedly connected to the gear 9, a central axis of the rotating shaft 17 is perpendicular to a central axis of the gear 9.

In this embodiment, as shown in fig. 4, the inside of the heat dissipation plate 10 is a hollow structure, the upper portion of the cavity between the outer shell 1 and the inner shell 2 is communicated with the inside of the heat dissipation plate 10 through a liquid inlet pipe 14, a first check valve 15 is connected to the liquid inlet pipe 14, the conduction direction of the first check valve 15 points to the inside of the heat dissipation plate 14, the inside of the heat dissipation plate 10 is communicated with the lower portion of the cavity between the outer shell 1 and the inner shell 2 through a liquid outlet pipe 18, a second check valve 19 is connected to the liquid outlet pipe 18, and the conduction direction of the second check valve 19 points to the cavity between the outer shell 1.

In this embodiment, as shown in fig. 5, the lower end of the first rack 5 passes through the top wall of the alarm box 13 and is located inside the alarm box 13, the first rack 5 can move up and down relative to the alarm box 13, the lower end of the first rack 5 is fixed with an upper convex block 20 and a lower convex block 21, the upper convex block 20 is located above the lower convex block 21, and both the upper convex block 20 and the lower convex block 21 can be in abutting contact with an alarm triggering mechanism inside the alarm box 13.

In this embodiment, as shown in fig. 5, the alarm triggering mechanism includes two supporting rods 22, and two of the supporting rods 22 are fixed on the bottom surface inside the alarm box 13, and two of the supporting rods 22 are vertically upward and arranged in parallel to each other, the upper end of the supporting rod 22 is fixed to the middle of the rotating connecting sleeve 23, and two of the connecting sleeve 23 are symmetrically arranged, one end of the two adjacent sleeve 23 is slidably connected with a sliding rod 24, one end of the sliding rod 24 far away from the corresponding sleeve 23 is fixed with a pin head 25, and the pin head 25 is connected with the end of the sleeve 23 through a spring 26.

In this embodiment, as shown in fig. 5, a pressing block 27 is disposed between the two pin heads 25, and the pin heads 25 are connected to one side of the pressing block 27 in a fixed-axis rotation manner, wherein one end of one of the sleeves 23, which is far away from the sliding rod 24, is located between the upper protruding block 20 and the lower protruding block 21, and both the upper protruding block 20 and the lower protruding block 21 can be in abutting contact with the end of the sleeve 23.

In this embodiment, as shown in fig. 5, the alarm triggering mechanism further includes a key switch 28, a storage battery 29, and an audible and visual alarm 30, the key switch 28, the storage battery 29, and the audible and visual alarm 30 are connected in series through a wire, the key switch 28 and the storage battery 29 are fixed on the inner bottom surface of the alarm box 13, the key switch 28 is located right below the pressing block 27, and the audible and visual alarm 30 is fixed on the outer upper surface of the alarm 30.

The use method and the advantages of the invention are as follows: when the automatic heat dissipation device for the capacitor is used, the automatic heat dissipation device for the capacitor comprises the following steps:

the method comprises the following steps: as shown in fig. 1, when the capacitor is in an inoperative state, the thermal bimetal 3 is in a flat state and does not bend and deform, the heat dissipation plate 10 is in a vertically upward state, and the two sleeves 23 are in a splayed state, that is, the press block 27 is not in contact with the key switch 28, so that an alarm circuit formed by the key switch 28, the storage battery 29 and the audible and visual alarm 30 is in an off state, and the audible and visual alarm 30 does not give an alarm;

when the capacitor starts to work, the capacitor generates heat, the heat-sensitive bimetallic strip 3 is heated through the heat conduction of the inner shell 2 and the qualified outer shell 1 of the cooling liquid, as shown in figure 2, the heat-sensitive bimetallic strip 3 is bent and deformed after being heated, the lower end of the heat-sensitive bimetallic strip is far away from the outer side wall of the outer shell 1, the bent and deformed heat-sensitive bimetallic strip 3 applies upward pulling force to the connecting rod 4 through the lower end of the heat-sensitive bimetallic strip, the pulling force is applied to the connecting rod 4 to drive the rack I5 to move upwards under the guiding action of the sliding sleeve 6, the upward movement of the rack I5 drives the gear 9 to rotate around the shaft rod 8 through the tooth transmission action between the rack I5 and the gear 9, the gear 9 rotates around the shaft rod 8 and simultaneously drives the rotating shaft 17 to synchronously rotate around the shaft rod 8, the rotating shaft 17 synchronously drives the gear ring 11 and the rotating rod 16 to synchronously rotate around the shaft rod 8, thereby increasing the distance between the heat dissipation plate 10 and the housing 1, reducing the air flow resistance outside the housing 1, and further increasing the heat dissipation efficiency of the housing 1;

along with the rise of the temperature, the bending deformation of the heat-sensitive bimetallic strip 3 is increased, and further the distance of the rack I5 driven by the connecting rod 4 to move upwards is increased, so that the angle of the rotating shaft 17 driven by the gear 9 to rotate around the shaft rod 8 is increased, the angle of the rotating shaft 17 driven by the gear ring 11 and the rotating rod 16 to rotate around the shaft rod 8 is increased, further the distance between the heat-radiating plate 10 and the shell 1 is increased, so that the air circulation efficiency is increased in a self-adaptive manner, the heat-radiating effect is improved, in the process that the gear ring 11 rotates around the shaft rod 8, after the gear ring 11 is meshed and connected with the rack II 12 on the bracket 7, the gear ring 11 rotates around the rotating shaft 17 under the tooth transmission effect between the gear ring 11 and the rack II 12, further the gear ring 11 drives the rotating rod 16 and the heat-radiating plate 10 to synchronously rotate around the rotating shaft 17, namely, the heat-radiating, the rotation of the heat dissipation plate 10 on two axes enables the heat dissipation plate 10 to start stirring action on air around the shell 1, and the flow of the air is promoted, so that the heat dissipation efficiency of the shell is improved, and the heat of the capacitor works on the heat dissipation plate 10 through the heat-sensitive metal sheet 3, the connecting rod 4, the first rack 5, the gear 9, the rotating shaft 17, the gear ring 11 and the rotating rod 16, so that the heat is consumed, and the heat dissipation efficiency and the effect of the automatic heat dissipation device for the capacitor in the application are increased;

after the heat generated by the heat dissipation plate 10 to the capacitor is dissipated or the working power of the capacitor is reduced, the heat is reduced, or the capacitor stops working and does not generate heat any more, so that the heat-sensitive bimetallic strip 3 is heated and reduced, the heat-sensitive bimetallic strip 3 is reset from a bent state to a straight state after being cooled, the lower end of the heat-sensitive bimetallic strip is close to the outer side wall of the shell 1, the rack I5 is driven by the connecting rod 4 to move downwards and reset under the guiding action of the sliding sleeve 6, the downward movement of the rack I5 drives the gear 9 to rotate around the shaft rod 8 in the reverse direction through the tooth transmission action between the rack I5 and the gear 9, the gear 9 rotates around the shaft rod 8 in the reverse direction and simultaneously drives the rotating shaft 17 to rotate around the shaft rod 8 in the reverse direction, the reverse rotation of the rotating shaft 17 synchronously drives the gear ring 11 and the rotating rod 16 to rotate around the shaft rod 8 in the, and reset, in the course that the gear ring 11 rotates around the shaft lever 8 in the opposite direction, the tooth transmission action between gear ring 11 and rack two 12 makes the gear ring 11 rotate around the axis of rotation 17 in the opposite direction, and then make the gear ring 11 drive the rotating lever 16 and heat-dissipating plate 10 to rotate around the axis of rotation 17 in the opposite direction synchronously, namely realize the heat-dissipating plate 10 rotates around the axis of rotation 17 in the opposite direction too while rotating around the shaft lever 8 in the opposite direction, and reset, thus realize the automatic reset, so that when the capacitor produces heat next time, the heat-dissipating plate 10 carries on the heat-dissipating treatment to the capacitor according to the above-mentioned movement state, wherein when the working condition of the capacitor, its output power is getting bigger or getting smaller, namely increase or reduction of the heat production, make the heat-dissipating plate 10 swing reciprocally, increase the air flow around the outer cover 1, thus realize;

step two: the heat generated after the capacitor works is transmitted to the cooling liquid through the inner shell 2, so that the temperature of the cooling liquid rises, the internal pressure is increased, the hot cooling liquid moves upwards, the conduction direction of the one-way valve I15 points to the inside of the heat dissipation plate 10, the conduction direction of the one-way valve II 19 points to the cavity between the outer shell 1 and the inner shell 2, therefore, the hot cooling liquid on the upper side inside the cavity enters the inside of the heat dissipation plate 10 through the liquid inlet pipe 14, the heat dissipation plate 10 conducts heat dissipation and temperature reduction on the high-temperature cooling liquid entering the inside of the heat dissipation plate 10, similarly, the conduction direction of the one-way valve I15 points to the inside of the heat dissipation plate 10, the conduction direction of the one-way valve II 19 points to the cavity between the outer shell 1 and the inner shell 2, therefore, the cooled cooling liquid flows back to the inside of the cavity through the liquid outlet pipe 19, further, the circulating flow of, the plurality of heat dissipation plates 10 are adopted to increase the heat dissipation area, so that the flow efficiency of cooling liquid is facilitated, the pressure of the heated cavity between the outer shell 1 and the inner shell 2 is kept stable while the heat dissipation efficiency is improved through the circulating flow of the cooling liquid, the technical requirement on high-temperature sealing performance is reduced, the production and the manufacture are easy, the processing difficulty is reduced, and the practicability is improved;

step three: as shown in fig. 3 and 5, when the output power of the capacitor is too high or the heat generated due to abnormal operation is increased sharply, so that the heat dissipation plate 10 cannot dissipate the heat generated by the capacitor in time, at this time, the amount of bending deformation of the thermal bimetal 3 is large, and the distance of upward movement of the rack 5 is increased by the connecting rod 4, the rack 5 moves upward to synchronously drive the upper projection 20 and the lower projection 21 to move upward, so that the lower projection 21 applies upward pushing force to the left end of the sleeve 23 on the left side in fig. 5, according to the lever action, the left end of the sleeve 23 moves upward, the right end moves downward, so as to drive the corresponding slide rod 26 to move downward, so that the slide rod 26 moves downward to drive the press block 27 to move downward by the pin head 25, and the two sleeves 23 are in the shape of inverted eight, at this time, the press block 27 applies downward pressing force to the key switch 28 under the action of the spring 26, at this time, the alarm circuit composed of the key switch 28, the storage battery 29 and the audible and visual alarm 30 is in a power-on state, the audible and visual alarm 30 generates audible and visual alarm signals to remind workers of abnormal work of the capacitor, so that the capacitor is powered off in time, an overheating early warning protection effect is achieved, and large loss is avoided. The key switch mainly refers to a touch key switch, also called a touch switch. A push switch is an electronic switch, belongs to the class of electronic components, and has been first found in japan [ called: sensitive switch, when it is used, the switch can be closed and switched on by applying pressure to switch operation direction under the condition of meeting operation force, and when the pressure is removed, the switch can be switched off, and its internal structure is switched on and off by means of stress change of metal spring sheet. It should be noted that, the application can act on the positive tai capacitor BZMJ0.450.4 reactive compensation self-healing low-voltage parallel power capacitor, and also can act on the electrolytic capacitor 75x145 with the model 450V4700UF, and the application does not limit the specific model and size of the capacitive element with a large volume, as long as a person skilled in the art can know that the shell of the application can be used in the protection range of the application.

After the capacitor is powered off, the heat generated by the capacitor gradually decreases and returns to the original state, and at this time, the heat-sensitive bimetal 3 returns to the original state. In the process, the thermosensitive bimetallic strip 3 drives the rack I5 to move downwards and reset through the connecting rod 4, the downward movement of the rack I5 synchronously drives the upper lug 20 and the lower lug 21 to move downwards, so that the upper lug 20 exerts downward pressure on the left end of the sleeve 23 on the left in figure 5, according to the lever action, the left end of the sleeve 23 moves downwards, and the right end moves upwards, so that the corresponding slide bar 26 is driven to move upwards, the slide bar 26 moves upwards, the press block 27 is driven to move upwards through the pin head 25, and make the two sleeves 23 in splayed shape, return to the original state, make the pressure block 27 not contact with key switch 28 under the action of spring 26 at this moment, the key switch 28 is in an off state, and at the moment, an alarm circuit formed by the key switch 28, the storage battery 29 and the audible and visual alarm 30 is in an off state, so that the audible and visual alarm 30 does not give an alarm, the alarm is automatically released, and manual operation is not needed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an automatic heat abstractor is used to condenser, includes shell (1) and inner shell (2), its characterized in that: the improved structure of the capacitor is characterized in that the inner shell (2) is arranged inside the outer shell (1), the capacitor is arranged inside the inner shell (2), a cavity is formed between the inner shell (2) and the outer shell (1), cooling liquid is filled in the cavity, a heat driving mechanism and a heat dissipation mechanism are arranged on the outer side wall of the outer shell (1), the heat driving mechanism is in driving connection with the heat dissipation mechanism, an alarm box (13) is fixed to the bottom of the outer side of the outer shell (1), an alarm triggering mechanism is arranged inside the alarm box (13), and the heat driving mechanism is in transmission connection with the alarm triggering mechanism.

2. The automatic heat dissipating device for capacitors as claimed in claim 1, wherein: the hot actuating mechanism includes temperature sensing bimetallic strip (3), the upper end of temperature sensing bimetallic strip (13) is fixed on shell (1), the upper end of the articulated connecting rod of lower extreme (4) of temperature sensing bimetallic strip (13), the upper end of the articulated rack (5) of lower extreme of connecting rod (4), rack (5) sliding connection is in sliding sleeve (6) on being fixed in shell (1) lateral wall, and rack (5) can slide from top to bottom in sliding sleeve (6).

3. The automatic heat dissipating device for capacitors as claimed in claim 2, wherein: the heat dissipation mechanism comprises a plurality of supports (7) fixed on the outer side wall of the shell (1), the supports (7) are located on one side of the rack I (5), the supports (7) are arranged at equal intervals from top to bottom along the trend of the rack I (5), the fixed shaft on the supports (7) is rotatably connected with the shaft rod (8), the shaft rod (8) is perpendicular to the different surfaces of the rack I (5), the gear (9) is fixed on the shaft rod (8), and the gear (9) is meshed with the rack I (5).

4. The automatic heat dissipating device for capacitors as claimed in claim 2, wherein: heat dissipation mechanism still includes a plurality of heating panels (10), and heating panel (10) and support (7) one-to-one, one side of heating panel (10) is fixed with bull stick (16), and bull stick (16) and this side are perpendicular, the one end that heating panel (10) were kept away from in bull stick (16) is fixed with ring gear (11), the center department dead axle of ring gear (11) rotates and is connected with pivot (17), and pivot (17) keep away from the one end and gear (9) fixed connection of ring gear (11), the central axis of pivot (17) is perpendicular with the central axis of gear (9), be fixed with rack two (12) on support (7), ring gear (11) can be connected with rack two (12) meshing.

5. The automatic heat dissipating device for capacitors as claimed in claim 4, wherein: the inside of heating panel (10) is hollow structure, the inside intercommunication of feed liquor pipe (14) and heating panel (10) is passed through on the cavity upper portion between shell (1) and inner shell (2), and is connected with check valve (15) on feed liquor pipe (14), the inside of the directional heating panel of direction (14) that switches on of check valve (15), drain pipe (18) intercommunication is passed through with the cavity lower part between shell (1) and inner shell (2) in the inside of heating panel (10), and is connected with check valve two (19) on drain pipe (18), the cavity between the directional shell of direction (1) and inner shell (2) that switches on of check valve two (19).

6. The automatic heat dissipating device for capacitors as claimed in claim 3, wherein: the lower end of the first rack (5) penetrates through the top wall of the alarm box (13) and is located inside the alarm box (13), the first rack (5) can move up and down relative to the alarm box (13), an upper convex block (20) and a lower convex block (21) are fixed at the lower end of the first rack (5), the upper convex block (20) is located above the lower convex block (21), and both the upper convex block (20) and the lower convex block (21) can be in abutting-buckling contact with an alarm trigger mechanism inside the alarm box (13).

7. The automatic heat dissipating device for capacitors as claimed in claim 6, wherein: alarm trigger mechanism includes two branch (22), and two branch (22) are fixed on the inside bottom surface of alarm box (13), and two branch (22) are vertical upwards and parallel arrangement each other, the middle part of connecting sleeve (23) is rotated to the upper end dead axle of branch (22), and two sleeve (23) symmetry formula sets up, two the one end sliding connection that sleeve (23) are close to each other has slide bar (24), the one end that sleeve (23) that its corresponds was kept away from in slide bar (24) is fixed with round pin head (25), round pin head (25) pass through spring (26) with the tip of sleeve (23) and are connected.

8. The automatic heat dissipating device for capacitors as claimed in claim 7, wherein: a pressing block (27) is arranged between the two pin heads (25), the pin heads (25) are in fixed-shaft rotating connection with one side of the pressing block (27), one end, far away from the sliding rod (24), of one sleeve (23) is located between the upper convex block (20) and the lower convex block (21), and the upper convex block (20) and the lower convex block (21) can be in abutting contact with the end portion of the sleeve (23).

9. The automatic heat dissipating device for capacitors as claimed in claim 8, wherein: alarm trigger mechanism still includes key switch (28), battery (29) and audible-visual annunciator (30), key switch (28), battery (29) and audible-visual annunciator (30) are through wire series connection, key switch (28) and battery (29) are fixed in the inside bottom surface of alarm box (13), and key switch (28) are located briquetting (27) under, the outside upper surface at alarm (30) is fixed in audible-visual annunciator (30).

10. The use method of the automatic heat dissipation device for capacitors as claimed in claim 9, wherein: the method comprises the following steps: