CN111863535A

CN111863535A - Heat dissipation type relay with breathing function

Info

Publication number: CN111863535A
Application number: CN202010765108.5A
Authority: CN
Inventors: 杜展
Original assignee: Churod Electronics Wuhu Co ltd
Current assignee: Churod Electronics Wuhu Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2020-10-30
Anticipated expiration: 2040-08-03
Also published as: CN111863535B

Abstract

The invention discloses a heat dissipation type relay with a breathing function, which comprises a fixed plate, a shell and a relay body, wherein the shell is connected above the fixed plate in a sliding manner in the vertical direction, one-way air outlet valves are fixed at the upper ends of the left and right side walls of the shell, a gas cavity is formed in the fixed plate along the length direction of the fixed plate, one end of the gas cavity is provided with a first air inlet, a drying layer is fixed on the inner side wall of the gas cavity, the upper end of the gas cavity is provided with a second air inlet along the length direction of the gas cavity at equal intervals, the bottom end of the shell is provided with a third air inlet which corresponds to the second air inlet one by one along the length direction of the shell, and a one-way air inlet valve is connected between each corresponding second air inlet and third air inlet. The heat dissipation function is realized by making the dried gas flow in a single direction.

Description

Heat dissipation type relay with breathing function

Technical Field

The invention relates to the technical field of relays for automobiles, in particular to a heat dissipation type relay with a breathing function.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The existing relay generally comprises a shell, a bottom plate and a relay main body structure, wherein the relay main body structure is arranged on the bottom plate, the shell is fixed on the bottom plate, and the relay main body structure is sealed by the shell. The relay can produce the heat at the in-process of work, because the shell is sealed with relay major structure, the heat that produces in the course of the work can not in time distribute away, leads to the relay to burn out easily. In order to solve the problem of heat dissipation, some relays are specially provided with air holes on the shell to ensure the timely dissipation of heat. However, some relays can work in a severe environment, for example, relays used in automobiles have high switching load power, automobile relays are used in places such as headlights, small lamps, steering lamps, tail lamps and loudspeakers of automobiles, air holes are formed in the shells, external humid gas, water and the like can enter the relays through the air holes, normal work of the relays is influenced, and great influence is brought to safe running of the automobiles.

Disclosure of Invention

The present invention is directed to a heat dissipation type relay with a breathing function to solve the problems of the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a heat dissipation type relay with a breathing function comprises a fixed plate, a shell and a relay body, wherein mounting holes are formed in the left end and the right end of the fixed plate, a movable door is hinged to one side wall of the shell, the shell is connected above the fixed plate in a sliding mode in the vertical direction, the relay body is detachably connected in the shell, one-way air outlet valves are fixed at the upper ends of the left side wall and the right side wall of the shell respectively, a gas cavity is formed in the fixed plate along the length direction of the fixed plate, a first air inlet hole is formed in one end of the gas cavity, a drying layer is fixed on the inner side wall of the gas cavity, second air inlet holes are formed in the upper end of the gas cavity along the length direction of the gas cavity at equal intervals, third air inlets which correspond to the second air inlet holes one by one are formed in the bottom end, one-way admission valve is the elasticity material, and one-way admission valve is "hourglass" shape structure, the upper end of one-way admission valve is fixed in the periphery of three inlet ends that admit air, and the bottom of one-way admission valve surrounds the periphery of giving vent to anger the end at inlet port two, the bottom of one-way admission valve is equipped with the crack along its circumferencial direction equidistant, and the inner wall laminating of the crack upper end of one-way admission valve and form the closure, be fixed with the sealed cowling that surrounds that is used for all one-way admission valves between fixed plate and the casing, and the sealed cowling is flexible material.

Preferably, still be fixed with the drying device who is used for dry layer on the fixed plate, and drying device includes the heating resistor of evenly distributed on the inner wall of gas cavity, fixes the humidity transducer on dry layer, is located the control cavity of gas cavity below, fixes controller and the battery in the control cavity, and heating resistor, humidity transducer all with controller electric connection.

Preferably, there is the bracing piece about the left and right sides symmetry of the upper end of fixed plate is perpendicular, and every bracing piece is located the position department between fixed plate and the casing and all overlaps and be equipped with damping spring, every the upper end of bracing piece all passes and corresponds the through-hole of seting up in the casing bottom and extends to in the casing, and the equal level in top of every bracing piece is fixed with the dead lever, and the one end that every dead lever is located the casing lateral wall all is fixed with the direction slider, the lateral wall is along vertically offering two direction spouts with two direction slider looks adaptations about the casing.

Preferably, each support rod is located the below of dead lever and is fixed with the backup pad that is used for supporting the relay body in the one side level of direction slider back to, the inside top of casing is fixed with the tensioning spring along its length direction equidistance, and the bottom of every tensioning spring all is fixed with fixed suction cup, every fixed suction cup's lateral wall all is equipped with the ooff valve.

Preferably, one end of the fixed rod, which is far away from the guide sliding block, is fixed with a clamping block, the fixed rod consists of a telescopic sleeve and a telescopic rod, and the free end of the telescopic rod is rotatably connected with the side wall of the clamping block.

Preferably, one-way admission valve is by the rubber material, and adds in the rubber material and strengthen the strip, it is nylon rope or steel wire to strengthen the strip.

Preferably, a sealing ring is fixed in each through hole.

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

(1) when the automobile runs, jolting often happens due to uneven roads and the like, in the jolting process, the shell moves linearly up and down along the longitudinal direction under the matching of the supporting rod and the damping spring, the shell compresses the one-way air inlet valve in the downward moving process, at the moment, the bottom of the one-way air inlet valve expands towards the open direction, the internal channel of the one-way air inlet valve is opened, the dry gas in the gas cavity enters the shell through the one-way air inlet valve, flows upwards from the bottom of the relay body along the two side walls of the relay body and flows to the outside from the two one-way air outlet valves, the heat generated by the relay body is taken away, so that the heat dissipation effect is achieved, in the upward moving process of the shell, the one-way air inlet valve is restored to the initial state, and in the process that the one-way air inlet valve, for gas gets into the casing and provides the power with higher speed, and then can "inhale" gas to the casing in, improved gas and entered into the inside speed of casing, be favorable to improving the radiating effect to the relay body, at whole driving in-process, through the in-process that the casing reciprocated and realize automatic "breathing" effect through the cooperation of one-way admission valve and one-way air outlet valve, make the one-way flow of dry gas realize the heat dissipation to the relay body.

(2) In the invention, a supporting plate for supporting the relay body is horizontally fixed on one side of each supporting rod, which is positioned below the fixed rod and back to the guide sliding block, a tensioning spring is fixed at the top end of the inside of the shell at equal intervals along the length direction of the supporting rod, a fixed sucker is fixed at the bottom end of each tensioning spring, a switch valve is arranged on the side wall of each fixed sucker, the tensioning spring is initially in a tensioning state, the fixed suckers are firmly adsorbed at the top of the relay body through the tensioning springs, so that the relay body is fixed on the two supporting plates, the tensioning springs are extruded in the downward movement process of the shell in the bumping process, at the moment, the acting force applied to the fixed suckers is further increased, so that the relay body can be more firmly fixed, and when the shell rises, the tensioning springs are still in the tensioning state, even the casing rises like this also can not be fixed sucking disc and relay body and break away from, when needs maintenance, only need open the ooff valve on every fixed sucking disc, make inside external gas enters into fixed sucking disc, make the inside no adsorption affinity of fixed sucking disc so that take out the maintenance with the relay body in the casing, not only convenient but also swift.

(3) According to the invention, the clamping block is fixed at one end of the fixing rod, which is far away from the guide sliding block, the fixing rod consists of the telescopic sleeve and the telescopic rod, the free end of the telescopic rod is rotatably connected with the side wall of the clamping block, and the clamping block is close to the side wall of the relay body until the clamping block is abutted against the relay body and the clamping block by rotating the telescopic rod, so that the stability of the fixation of the relay body is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural cross-sectional view of the present invention;

FIG. 3 is a schematic view of a one-way intake valve;

fig. 4 is a structural sectional view of a one-way intake valve.

In the figure: 1. a fixing plate; 2. a housing; 3. a relay body; 4. a gas chamber; 5. a support bar; 6. a damping spring; 7. a first air inlet; 8. fixing the rod; 9. a guide slider; 10. a clamping block; 11. a guide chute; 12. a support plate; 13. tensioning the spring; 14. fixing the sucker; 15. a one-way air outlet valve; 16. a second air inlet; 17. a one-way intake valve; 18. air intake III; 19. drying the layer; 20. a heating resistor; 21. a control chamber; 22. a controller; 23. a battery; 24. a reinforcing strip; 25. mounting holes; 26. a movable door; 27. a seal ring; 28. a sealing cover; 29. a humidity sensor.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a heat dissipation type relay with a breathing function comprises a fixing plate 1, a shell 2 and a relay body 3, wherein mounting holes 25 are formed in the left end and the right end of the fixing plate 1, a movable door 26 is hinged to one side wall of the shell 2, the shell 2 is connected above the fixing plate 1 in a sliding mode in the vertical direction, the relay body 3 is detachably connected into the shell 2, one-way air outlet valves 15 are fixed to the upper ends of the left side wall and the right side wall of the shell 2, in the embodiment, the one-way air outlet valves 15 are one-way valves commonly used in the prior art, and therefore the description is omitted, a gas chamber 4 is formed in the fixing plate 1 in the length direction, one end of the gas chamber 4 is provided with a first air inlet 7, a drying layer 19 is fixed to the inner side wall of the gas chamber 4, the drying layer 19 is made of sponge materials, and gas entering the gas chamber 4 is, the relay body 3 is prevented from being corroded by moist gas entering the shell 2, the upper end of the gas cavity 4 is provided with two air inlet holes 16 at equal intervals along the length, the bottom end of the shell 2 is provided with three air inlets 18 at equal intervals along the length direction, the three air inlets 16 are in one-to-one correspondence with the two air inlet holes 16, a one-way air inlet valve 17 is connected between each two corresponding two air inlet holes 16 and each three air inlet 18, the one-way air inlet valve 17 is made of elastic materials, the one-way air inlet valve 17 is of a hourglass-shaped structure, the upper end of the one-way air inlet valve 17 is fixed on the periphery of the air inlet end of the three air inlets 18, the bottom end of the one-way air inlet valve 17 surrounds the periphery of the air outlet end of the two air inlet holes 16, cracks are formed at equal intervals along the circumferential direction of the bottom end of the one-way air inlet valve 17, when the one-way air inlet valve 17 is compressed in the longitudinal direction, a plurality of 'petals' at the bottom end of the one-way air inlet valve 17 are opened, at the same time, the internal channel of the one-way air inlet valve 17 is opened, at the same time, the air entering the air chamber 4 enters the housing 2 through the one-way air inlet valve 17, flows upwards from the bottom of the relay body 3 along two side walls of the relay body 3, flows to the outside from two one-way air outlet valves 15 and takes away the heat generated by the relay body 3, so as to play a role in heat dissipation, a sealing cover 28 for sealing and surrounding all the one-way air inlet valves 17 is fixed between the fixing plate 1 and the housing 2, the one-way air inlet valves 17 are sealed through the sealing cover 28, in rainy and snowy weather, the one-way air inlet valve 17 is prevented from being mixed with external moist air in the process of inhaling air into the housing 2, the sealing cover 28 is, when the housing 2 moves up and down, the sealing cover 28 made of flexible material can also move up and down along with the housing 2, so that the sealing cover 28 has a telescopic function.

Further, a drying device for drying the drying layer 19 is further fixed on the fixing plate 1, and the drying device includes heating resistors 20 uniformly distributed on the inner wall of the gas chamber 4, a humidity sensor 29 fixed on the drying layer 19, a control chamber 21 located below the gas chamber 4, a controller 22 and a battery 23 fixed in the control chamber 21, and the heating resistors 20 and the humidity sensor 29 are electrically connected to the controller 22, when a humidity signal detected by the humidity sensor 29 reaches a preset value, the humidity sensor 29 sends the detected signal to the controller 22, the controller 22 starts the heating resistors 20 to heat the drying layer 19, after drying, the controller 22 controls the heating resistors 20 to stop heating, at this time, the drying layer 19 can be continuously used, periodic replacement of the drying layer 19 is avoided, and the dried drying layer 19 can be recycled.

Further, there are bracing piece 5 in the left and right sides symmetry of the upper end of fixed plate 1 is perpendicular, and every bracing piece 5 is located the position department between fixed plate 1 and casing 2 and all overlaps and is equipped with damping spring 6, every the upper end of bracing piece 5 all passes the through-hole that corresponds to set up in casing 2 bottom and extends to in the casing 2, and the equal level in top of every bracing piece 5 is fixed with dead lever 8, and the one end that every dead lever 8 is located the casing 2 lateral wall all is fixed with direction slider 9, casing 2 controls the lateral wall along vertically offering two direction spouts 11 with two direction slider 9 looks adaptations, can produce jolting when the car is traveling the in-process, and at the in-process of jolting, casing 2 is through direction slider 9 and direction spout 11 cooperation down, to the one side linear motion at fixed plate 1 place.

Furthermore, a support plate 12 for supporting the relay body 3 is horizontally fixed on one side of each support rod 5, which is located below the fixing rod 8 and faces away from the guide slider 9, a tension spring 13 is fixed on the top end of the inside of the housing 2 at equal intervals along the length direction of the support rod, a fixing suction cup 14 is fixed on the bottom end of each tension spring 13, a switch valve is arranged on the side wall of each fixing suction cup 14, the tension spring 13 is initially in a tension state, the fixing suction cup 14 is firmly adsorbed on the top of the relay body 3 through the tension spring 13, so that the relay body 3 is fixed on the two support plates 12, the tension spring 13 is pressed during the downward movement of the housing 2 in the bumping process, at this time, the acting force applied to the fixing suction cup 14 is further increased, so that the relay body 3 can be more firmly fixed, and when the housing 2 rises, because the tensioning spring 13 is still in a tensioning state, even if the shell 2 rises, the fixed suction cups 14 cannot be separated from the relay body 3, when maintenance is needed, only the switch valve on each fixed suction cup 14 needs to be opened, so that outside air enters the fixed suction cups 14, and the fixed suction cups 14 have no adsorption force so as to take out the relay body 3 from the shell 2 for maintenance, so that the maintenance is convenient and fast.

Further, the one end that direction slider 9 was kept away from to dead lever 8 is fixed with and presss from both sides tight piece 10, and dead lever 8 comprises telescopic sleeve and telescopic link, the free end of telescopic link rotates with the lateral wall that presss from both sides tight piece 10 to be connected, makes through rotating the telescopic link and presss from both sides tight piece 10 and be close to relay body 3's lateral wall until contradict with relay body 3 and press from both sides tight piece 10, has further improved the fixed stability of relay body 3.

Further, one-way air inlet valve 17 is by the rubber material, and adds in the rubber material and strengthens strip 24, strengthen strip 24 is nylon rope or steel wire, increases one-way air inlet valve 17's intensity.

Further, a sealing ring 27 is fixed in each through hole to prevent external air or dust from entering the housing 2.

The working principle is as follows: in this embodiment, arrows in fig. 2 indicate the flowing direction of air, when in use, the relay is installed on an automobile, when the automobile is running, jolting often occurs due to uneven roads and the like, during the jolting, the housing 2 moves linearly up and down along the longitudinal direction through the cooperation of the support rod 5 and the damping spring 6, while the housing 2 compresses the one-way air inlet valve 17 during the downward movement, at this time, the bottom of the one-way air inlet valve 17 expands to open, at this time, the internal channel of the one-way air inlet valve 17 is opened, the dry air in the air chamber 4 enters the housing 2 through the one-way air inlet valve 17, flows upwards from the bottom of the relay body 3 along two side walls of the relay body 3 and flows to the outside from the two one-way air outlet valves 15, and takes away the heat generated by the relay body 3, thereby performing the heat dissipation function, and during the upward movement of the, one-way air inlet valve 17 resumes initial condition, resume this in-process to initial condition when one-way air inlet valve 17, one-way air inlet valve 17's bottom produces the negative pressure, for gaseous entering casing 2 provides accelerated power, and then can "inhale" the casing 2 with gas in, gaseous speed that enters into casing 2 inside has been improved, be favorable to improving the radiating effect to relay body 3, at whole in-process of traveling, through the in-process that casing 2 reciprocated and realize automatic "breathing" effect through one-way air inlet valve 17 and the cooperation of one-way air outlet valve 15, make dry gaseous one-way flow realize the heat dissipation to relay body 3.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a heat dissipation type relay with breathe function, includes fixed plate (1), casing (2) and relay body (3), mounting hole (25) have all been seted up at both ends about fixed plate (1), it has dodge gate (26), its characterized in that to articulate on a lateral wall of casing (2): the upper part of the fixed plate (1) is connected with a shell (2) in a sliding manner in the vertical direction, the shell (2) is internally detachably connected with a relay body (3), the upper ends of the left side wall and the right side wall of the shell (2) are respectively fixed with a one-way gas outlet valve (15), the fixed plate (1) is provided with a gas chamber (4) along the length direction thereof, one end of the gas chamber (4) is provided with a first gas inlet hole (7), the inner side wall of the gas chamber (4) is fixed with a drying layer (19), the upper end of the gas chamber (4) is provided with a second gas inlet hole (16) along the length thereof at equal intervals, the bottom end of the shell (2) is provided with three gas inlet holes (18) which correspond to the second gas inlet holes (16) one by one at equal intervals along the length direction thereof, a one-way gas inlet valve (17) is connected between each, and one-way admission valve (17) are "hourglass" shape structure, the upper end of one-way admission valve (17) is fixed in the periphery of admitting air three (18) inlet ends, and the bottom of one-way admission valve (17) surrounds the periphery of giving vent to anger the end at inlet hole two (16), the bottom of one-way admission valve (17) is equipped with the crack along its circumferencial direction equidistant, and the inner wall laminating of the crack upper end of one-way admission valve (17) forms the closure, be fixed with between fixed plate (1) and casing (2) and be used for all sealed sealings (28) that surround of one-way admission valve (17), and sealed covering (28) are flexible material.

2. The heat dissipation type relay with respiration function according to claim 1, wherein: still be fixed with the drying device who is used for dry layer (19) on fixed plate (1), and drying device includes evenly distributed heating resistor (20) on gas chamber (4) inner wall, fixes humidity transducer (29) on dry layer (19), is located control chamber (21) of gas chamber (4) below, fixes controller (22) and battery (23) in control chamber (21), and heating resistor (20), humidity transducer (29) all with controller (22) electric connection.

3. The heat dissipation type relay with respiration function according to claim 1, wherein: the left and right sides symmetry of the upper end of fixed plate (1) has bracing piece (5) perpendicularly, and every bracing piece (5) are located position department between fixed plate (1) and casing (2) and all overlap and are equipped with damping spring (6), every the upper end of bracing piece (5) all passes and corresponds the through-hole of seting up in casing (2) bottom and extends to casing (2) in, and the equal level in top of every bracing piece (5) is fixed with dead lever (8), and the one end that every dead lever (8) are located casing (2) lateral wall all is fixed with direction slider (9), casing (2) about the lateral wall along vertically set up with two direction spout (11) of two direction slider (9) looks adaptations.

4. The heat dissipation type relay with respiration function according to claim 3, wherein: every bracing piece (5) are located the below of dead lever (8) and back to one side level of direction slider (9) and are fixed with backup pad (12) that are used for supporting relay body (3), the top of casing (2) inside is fixed with tensioning spring (13) along its length direction equidistant, and the bottom of every tensioning spring (13) all is fixed with fixed suction cup (14), every the lateral wall of fixed suction cup (14) all is equipped with the ooff valve.

5. The heat dissipation type relay with respiration function according to claim 3 or 4, wherein: one end of the fixing rod (8) far away from the guide sliding block (9) is fixed with a clamping block (10), the fixing rod (8) is composed of a telescopic sleeve and a telescopic rod, and the free end of the telescopic rod is rotatably connected with the side wall of the clamping block (10).

6. The heat dissipation type relay with respiration function according to claim 1, wherein: one-way admission valve (17) are by the rubber material, and add in the rubber material and strengthen strip (24), strengthen strip (24) for nylon rope or steel wire.

7. The heat dissipation type relay with respiration function according to claim 1, wherein: a sealing ring (27) is fixed in each through hole.