CN112289641A - High-temperature self-starting heat dissipation system for electromagnetic relay - Google Patents
High-temperature self-starting heat dissipation system for electromagnetic relay Download PDFInfo
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- CN112289641A CN112289641A CN202011120594.1A CN202011120594A CN112289641A CN 112289641 A CN112289641 A CN 112289641A CN 202011120594 A CN202011120594 A CN 202011120594A CN 112289641 A CN112289641 A CN 112289641A
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- cavity
- wall
- cooling
- sliding plug
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/12—Ventilating; Cooling; Heating
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a high-temperature self-starting heat dissipation system for an electromagnetic relay, which comprises a shell, wherein a sliding plug cavity is formed in the side wall of the shell, a partition plate is fixedly connected to the inner wall of the sliding plug cavity, the sliding plug cavity is divided into a cooling cavity and a liquid return cavity by the partition plate, cooling liquid is arranged in the cooling cavity, the inner wall of the liquid return cavity is connected with a sliding plug in a sealing and sliding mode, and the lower end of the sliding plug is elastically connected with the upper end of the partition plate through a conductive spring. According to the invention, when the temperature on the memory spring reaches the metamorphic temperature of the memory spring due to the rise of the temperature in the shell, the memory spring extends to push the first power connection block to slide upwards, so that the first power connection block is contacted with the second power connection block, the conductive spring is electrified and contracted to drive the sliding plug to slide downwards, the space in the liquid return cavity is increased, the liquid return cavity absorbs cooling liquid from the spiral cooling cavity through the one-way liquid outlet pipe, the cooling liquid flows in the spiral cooling cavity, the cooling liquid absorbs heat in the shell, and the shell is cooled again.
Description
Technical Field
The invention relates to the technical field of electromagnetic relays, in particular to a high-temperature self-starting heat dissipation system for an electromagnetic relay.
Background
An electromagnetic relay is an electronic control device, is generally applied to an automatic control circuit, and plays roles of automatic regulation, safety protection, circuit conversion and the like in the circuit.
Electromagnetic relay operates through its inside a plurality of control electronic components at the during operation, therefore, can give off a certain amount of heat on its inside electronic component of electromagnetic relay during operation, because electromagnetic relay volume is less, do not set up the heat dissipation mechanism that carries out the heat dissipation to its inside heat on the electromagnetic relay casing at present, can only rely on electromagnetic relay inside to carry out the heat through the casing and give off, lead to relatively poor to the radiating efficiency in the electromagnetic relay, make the temperature in the electromagnetic relay higher easily, especially when high temperature weather in summer, the higher life who makes its inside electronic component in the electromagnetic relay descends, and then increased the cost of maintenance to electromagnetic relay.
Based on the above, the invention provides a high-temperature self-starting heat dissipation system for an electromagnetic relay.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a high-temperature self-starting heat dissipation system for an electromagnetic relay.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an electromagnetic relay is with high temperature self-starting cooling system, includes the casing, the sliding plug chamber has been seted up to the casing lateral wall, sliding plug intracavity wall fixedly connected with baffle, the baffle divide into the sliding plug chamber cooling chamber and returns the liquid chamber, the cooling intracavity is equipped with the coolant liquid, it has the sliding plug to return the sealed sliding connection of liquid intracavity wall, the sliding plug lower extreme passes through conductive spring and baffle upper end elastic connection, spiral cooling chamber has been seted up to shells inner wall, cooling intracavity bottom is passed through the feed liquor pipe and is connected with spiral cooling chamber one end, it is connected with the spiral cooling chamber other end through one-way drain pipe to return liquid intracavity top, it is connected with cooling intracavity wall through one-way fluid-discharge tube to return liquid intracavity wall top, the power generation chamber has been seted up to the lateral wall that the sliding plug chamber was kept away from to the casing, the power generation intracavity is installed.
Preferably, power supply mechanism includes the first electricity piece that connects of sliding connection with electricity generation intracavity wall, first electricity piece lower extreme that connects passes through memory spring and electricity generation intracavity bottom elastic connection, electricity generation intracavity top fixedly connected with second connects the electricity piece, electricity generation intracavity top is inlayed and is equipped with the permanent magnetism board, electricity generation intracavity wall top is inlayed and is equipped with the conducting block, first electricity piece that connects is inlayed and is equipped with the electromagnetic plate that repels with the permanent magnetism board, first electricity piece and electromagnetic plate coupling are connected, the second connects the electricity piece and is connected with external power source positive pole coupling, the conducting block passes through conducting spring and is connected with external power source negative pole coupling.
Preferably, a plurality of heat dissipation fins are fixedly connected to the inner wall of the cooling cavity.
Preferably, the exhaust pipe is fixedly connected to the lower portion of the inner wall of the shell, the lower portion of the inner wall of the liquid return cavity is connected with the inner wall of the exhaust pipe through a one-way exhaust pipe, the one-way exhaust pipe penetrates through the inner wall of the cooling cavity, and a one-way air suction pipe is connected to the lower portion of the inner wall of the liquid return cavity.
The invention has the following beneficial effects:
1. by arranging the memory spring, the memory spring can preliminarily absorb heat in the shell, and the heat dissipation effect on the heat in the shell is good;
2. by arranging the first power connection block, the second power connection block, the conductive spring and the spiral cooling cavity, when the temperature in the shell rises to enable the temperature on the memory spring to reach the abnormal temperature, the memory spring extends to further push the first power connection block to slide upwards, when the first power connection block is in contact with the second power connection block, the first power connection block, the second power connection block, the electromagnetic plate, the conductive block and the conductive spring form a closed loop, the conductive spring is electrified and contracted to further drive the sliding plug to slide downwards, so that the space in the liquid return cavity is increased, the liquid return cavity absorbs cooling liquid from the spiral cooling cavity through the one-way liquid outlet pipe, the cooling liquid flows in the spiral cooling cavity, the cooling liquid absorbs heat in the shell, and the shell is cooled again;
3. after the electromagnetic plate is electrified to generate magnetism, the electromagnetic plate slides downwards under the action of the magnetic repulsion force of the permanent magnetic plate, then the first power connection block is separated from the second power connection block, the conductive spring is powered off, the conductive spring is extended, the space in the liquid return cavity is reduced, the cooling liquid in the liquid return cavity is extruded into the cooling cavity through the one-way liquid discharge pipe, the cooling liquid in the cooling cavity is supplemented, after the first power connection block is separated from the second power connection block, the magnetic repulsion force of the permanent magnetic plate on the electromagnetic plate disappears, then the first power connection block slides upwards again under the elastic force of the memory spring, the first power connection block is contacted with the second power connection block again, the conductive spring is electrified and contracted again to drive the sliding plug to slide downwards again, the operation is repeated, the cooling liquid continuously flows in the spiral cooling cavity in a circulating mode, and the cooling efficiency in the shell is accelerated;
4. through setting up the blast pipe, one-way breathing pipe and one-way outlet duct, when electrically conductive spring is cyclic to circular telegram and outage, make the sliding plug periodically slide up and glide down, and then return the intracavity intermittent type nature and pass through one-way outlet duct and pump gas in to the blast pipe, and under the effect in cooling chamber, make the gas temperature who flows from one-way outlet duct lower, and then go into the lower gas of temperature to the pump in the casing, further give off the heat in the casing, prolong its inside electronic component's life.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: the device comprises a shell 1, a sliding plug cavity 2, a cooling cavity 21, a liquid return cavity 22, a partition plate 3, a spiral cooling cavity 4, a liquid inlet pipe 5, a one-way liquid outlet pipe 6, a conductive spring 7, a sliding plug 8, a one-way liquid discharge pipe 9, a power generation cavity 10, a memory spring 11, a first power connection block 12, a second power connection block 13, a permanent magnet plate 14, a conductive block 15, an electromagnetic plate 16, heat dissipation fins 17, an exhaust pipe 18, a one-way exhaust pipe 19 and a one-way exhaust pipe 20.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example one
Referring to fig. 1-2, a high-temperature self-starting heat dissipation system for an electromagnetic relay includes a housing 1, a sliding plug cavity 2 is formed in a side wall of the housing 1, a partition plate 3 is fixedly connected to an inner wall of the sliding plug cavity 2, the sliding plug cavity 2 is divided into a cooling cavity 21 and a liquid return cavity 22 by the partition plate 3, cooling liquid is provided in the cooling cavity 21, a plurality of heat dissipation fins 17 are fixedly connected to an inner wall of the cooling cavity 21, so that the temperature in the cooling cavity 21 can be dissipated, the temperature of the cooling liquid is always kept low, a sliding plug 8 is slidably connected to an inner wall of the liquid return cavity 22 in a sealing manner, a lower end of the sliding plug 8 is elastically connected to an upper end of the partition plate 3 by a conductive spring 7, and it should be noted that a through hole is formed below an inner wall of the liquid;
the inner wall of the shell 1 is provided with a spiral cooling cavity 4, it needs to be explained that the arrangement of the spiral cooling cavity 4 increases the flowing time of the cooling liquid in the interior thereof, and increases the contact area between the cooling cavity and the inner wall of the shell 1, thereby accelerating the cooling in the shell 1, the bottom in the cooling cavity 21 is connected with one end of the spiral cooling cavity 4 through a liquid inlet pipe 5, the top in the liquid return cavity 22 is connected with the other end of the spiral cooling cavity 4 through a one-way liquid outlet pipe 6, the upper part of the inner wall of the liquid return cavity 22 is connected with the inner wall of the cooling cavity 21 through a one-way liquid outlet pipe 9, further, the inner wall of the cooling cavity 21 is connected with an elastic film for balancing the pressure change in the cooling cavity 21 when the cooling liquid flows in the spiral cooling cavity 4, it needs to be explained that the one-way liquid outlet pipe 6 only allows the cooling liquid to enter the liquid return cavity 22 from the spiral cooling cavity 21, the one-way, the side wall of the shell 1 far away from the sliding plug cavity 2 is provided with a power generation cavity 10, and a power supply mechanism for discontinuously supplying power to the conductive spring 7 is installed in the power generation cavity 10.
The power supply mechanism comprises a first power receiving block 12 connected with the inner wall of the power generation cavity 10 in a sliding mode, the lower end of the first power receiving block 12 is elastically connected with the bottom of the power generation cavity 10 through a memory spring 11, and it is required to say that a through hole is formed in the inner wall of the power generation cavity 10 and used for balancing the pressure change in the power generation cavity 10 when the first power receiving block 12 slides, furthermore, the memory spring 11 is made of a nickel-titanium memory alloy material, the transformation temperature of the nickel-titanium memory alloy material is 40 ℃, namely when the temperature in the shell 1 reaches the transformation temperature of the memory spring 11, the memory spring 11 stretches, and when the temperature in the shell 1 is lower than the transformation temperature of the memory spring 11, the memory spring 11 returns to the initial state;
the top fixedly connected with second electricity connection piece 13 in electricity generation chamber 10, electricity generation chamber 10 is inside to inlay at the top and is equipped with permanent magnetic plate 14, electricity generation chamber 10 inner wall top inlays and is equipped with conducting block 15, first electricity connection piece 12 is embedded to be equipped with the electromagnetic plate 16 who repels with permanent magnetic plate 14, it should be explained, permanent magnetic plate 14 is far greater than the elasticity of memory spring 11 to the magnetic repulsion of electromagnetic plate 16, after making circular telegram produce magnetism on the electromagnetic plate 16, electromagnetic plate 16 gliding under the magnetic repulsion effect of permanent magnetic plate 14, first electricity connection piece 12 and electromagnetic plate 16 coupling are connected, second electricity connection piece 13 and external power positive pole coupling are connected, conducting block 15 is connected with external power negative pole coupling through conducting spring 7.
In this embodiment, when the electronic components in the housing 1 generate heat during operation, the memory spring 11 will primarily absorb the heat in the housing 1, when the temperature in the housing 1 continues to rise, so that the temperature on the memory spring 11 rises to its transformation temperature, at which point the memory spring 11 stretches, further pushing the first electric-connecting block 12 to slide upwards, so that the first electric-connecting block 12 contacts with the second electric-connecting block 13, and at this time, a closed loop is formed among the first electric-connecting block 12, the second electric-connecting block 13, the electromagnetic plate 16, the conductive block 15, the conductive spring 7 and an external power supply, then the conductive spring 7 is electrified and contracted, and further the sliding plug 8 is driven to slide downwards, so that the inner space of the liquid return cavity 22 is enlarged, the liquid return cavity 22 sucks cooling liquid from the spiral cooling cavity 4 through the one-way liquid outlet pipe 6, so that the cooling liquid flows in the spiral cooling cavity 4, and the cooling liquid absorbs heat in the shell 1;
when the first electric block 12 contacts with the second electric block 13, the electromagnetic plate 16 is energized to generate magnetism, because the magnetic repulsion force of the permanent magnetic plate 14 to the electromagnetic plate 16 is far greater than the elastic force of the memory spring 11, the electromagnetic plate 16 slides downwards under the action of the magnetic repulsion force of the permanent magnetic plate 14, then the circuit between the first electric block 12, the second electric block 13, the electromagnetic plate 16, the conductive block 15, the conductive spring 7 and an external power supply is disconnected, and then the conductive spring 7 is powered off and extends to push the sliding plug 8 to slide upwards, so that the space of the liquid return cavity 22 is reduced, further the cooling liquid in the liquid return cavity 22 is extruded into the cooling cavity 21 through the one-way liquid discharge pipe 9 to supplement the cooling liquid in the cooling cavity 21, after the first electric block 12 is separated from the second electric block 13, the magnetic repulsion force of the permanent magnetic plate 14 to the electromagnetic plate 16 disappears, and then the first electric block 12 slides upwards again under the elastic force of the memory spring 11, make first electricity piece 12 contact with second electricity piece 13 once more, and then the circular telegram shrink once more on the conductive spring 7, drive sliding plug 8 gliding once more for coolant liquid in the cooling chamber 21 gets into back in the liquid chamber 22 through spiral cooling chamber 4 once more, and produces magnetism again on the electromagnetic plate 16 this moment, and then repeats above-mentioned operation, makes coolant liquid constantly at spiral cooling chamber 4 internal recycle flow for the cooling to in the casing 1.
Example two
Referring to fig. 3, a difference from the first embodiment is that an exhaust pipe 18 is fixedly connected below an inner wall of a housing 1, a one-way exhaust pipe 19 is connected below an inner wall of a liquid return cavity 22 and connected to an inner wall of the exhaust pipe 18, the one-way exhaust pipe 19 is disposed to penetrate through an inner wall of a cooling cavity 21, and a one-way air suction pipe 20 is connected below an inner wall of the liquid return cavity 22, where it should be noted that the one-way exhaust pipe 19 only allows air to enter the exhaust pipe 18 from the liquid return cavity 22, and the one-way air suction pipe 20 only allows air to enter the.
In this embodiment, when the first power connection block 12 and the second power connection block 13 are periodically contacted and separated, the conductive spring 7 is periodically energized and de-energized, so that the sliding plug 8 periodically slides up and down, and further the space in the liquid return cavity 22 is periodically increased and decreased, and further the liquid return cavity 22 is intermittently pumped into the exhaust pipe 18 through the one-way exhaust pipe 19, and under the action of the cooling cavity 21, the temperature of the gas flowing out from the one-way exhaust pipe 19 is lower, and further the gas with lower temperature is pumped into the housing 1, thereby further accelerating the dissipation of heat in the housing 1, and prolonging the service life of the electronic components therein.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a high temperature self-starting cooling system for electromagnetic relay, includes casing (1), its characterized in that, sliding plug chamber (2) have been seted up to casing (1) lateral wall, sliding plug chamber (2) inner wall fixedly connected with baffle (3), baffle (3) divide sliding plug chamber (2) into cooling chamber (21) and return sap cavity (22), be equipped with the coolant liquid in cooling chamber (21), return sap cavity (22) inner wall sealing sliding connection has sliding plug (8), sliding plug (8) lower extreme passes through conducting spring (7) and baffle (3) upper end elastic connection, spiral cooling chamber (4) have been seted up to casing (1) inner wall, the bottom is connected with spiral cooling chamber (4) one end through feed liquor pipe (5) in cooling chamber (21), return sap cavity (22) interior top and be connected with the spiral cooling chamber (4) other end through one-way drain pipe (6), the liquid return cavity (22) is connected with the inner wall of the cooling cavity (21) through a one-way liquid discharge pipe (9) above the inner wall, a power generation cavity (10) is formed in the side wall, far away from the sliding plug cavity (2), of the shell (1), and a power supply mechanism for intermittently supplying power to the conductive spring (7) is installed in the power generation cavity (10).
2. The high-temperature self-starting heat dissipation system for the electromagnetic relay according to claim 1, the power supply mechanism comprises a first power connection block (12) which is connected with the inner wall of the power generation cavity (10) in a sliding way, the lower end of the first electricity-connecting block (12) is elastically connected with the bottom in the electricity-generating cavity (10) through a memory spring (11), a second power connection block (13) is fixedly connected with the inner top of the power generation cavity (10), a permanent magnet plate (14) is embedded in the inner top of the power generation cavity (10), a conductive block (15) is embedded above the inner wall of the power generation cavity (10), an electromagnetic plate (16) which repels the permanent magnetic plate (14) is embedded in the first power connection block (12), the first electric connection block (12) is coupled with the electromagnetic plate (16), the second electric connection block (13) is coupled with the positive pole of an external power supply, the conductive block (15) is coupled and connected with the negative electrode of an external power supply through a conductive spring (7).
3. The high-temperature self-starting heat dissipation system for the electromagnetic relay according to claim 1, wherein a plurality of heat dissipation fins (17) are fixedly connected to an inner wall of the cooling cavity (21).
4. The high-temperature self-starting heat dissipation system for the electromagnetic relay according to claim 1, wherein an exhaust pipe (18) is fixedly connected below an inner wall of the housing (1), the lower portion of the inner wall of the liquid return cavity (22) is connected with the inner wall of the exhaust pipe (18) through a one-way air outlet pipe (19), the one-way air outlet pipe (19) is arranged to penetrate through the inner wall of the cooling cavity (21), and a one-way air suction pipe (20) is connected below the inner wall of the liquid return cavity (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011120594.1A CN112289641A (en) | 2020-10-19 | 2020-10-19 | High-temperature self-starting heat dissipation system for electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011120594.1A CN112289641A (en) | 2020-10-19 | 2020-10-19 | High-temperature self-starting heat dissipation system for electromagnetic relay |
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| Publication Number | Publication Date |
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| CN112289641A true CN112289641A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011120594.1A Withdrawn CN112289641A (en) | 2020-10-19 | 2020-10-19 | High-temperature self-starting heat dissipation system for electromagnetic relay |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952571A (en) * | 2021-03-10 | 2021-06-11 | 何静伟 | A electric power cabinet fire prevention cabinet door for outdoor environment |
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2020
- 2020-10-19 CN CN202011120594.1A patent/CN112289641A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952571A (en) * | 2021-03-10 | 2021-06-11 | 何静伟 | A electric power cabinet fire prevention cabinet door for outdoor environment |
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Application publication date: 20210129 |