CN113782360A - Transmission system of miniature relay - Google Patents
Transmission system of miniature relay Download PDFInfo
- Publication number
- CN113782360A CN113782360A CN202110837341.4A CN202110837341A CN113782360A CN 113782360 A CN113782360 A CN 113782360A CN 202110837341 A CN202110837341 A CN 202110837341A CN 113782360 A CN113782360 A CN 113782360A
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- China
- Prior art keywords
- plate
- spring copper
- sensor
- movable spring
- oil
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H45/00—Details of relays
Abstract
The invention discloses a transmission system of a miniature relay, which comprises a prime moving mechanism, a controller, a plate arranged at the output end of the prime moving mechanism, a sensor and an elastic part, wherein the sensor and the elastic part are arranged on the plate, the sensor is used for detecting a distance value between the plate and a movable spring copper part in real time, a standard value of the distance value is preset in the controller, when the controller controls the prime moving mechanism to drive the movable spring copper part to move towards a static spring copper part, a distance value signal detected by the sensor is received, and when the distance value is equal to the standard value, the prime moving mechanism is controlled to stop driving, so that the contact switching-on of the movable spring copper part and the static spring copper part is completed. When the transmission system drives the movable spring copper piece to perform displacement switching-on, the stop of the displacement is completely controlled according to the actual compression amount of the elastic piece, so that the conductive contacts can be ensured to be in close contact at each switching-on, the poor contact condition caused by insufficient displacement amount can be avoided when the contacts are worn and collapsed, the condition of excessive extrusion is avoided, and the contact is protected and the abrasion is delayed.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a transmission system of a miniature relay.
Background
At present, relays are widely applied to IDC (Internet Data Center) machine room power distribution systems, power systems or mobile telecommunication communication fields, rail transit fields, security systems and other fields.
The existing relays are mostly driven by electromagnetism or machinery, wherein the electromagnetism is driven by matching an electromagnetic coil with a magnetic conductive material, a contact is pulled by utilizing the principle of the electromagnetism to complete the switching action, but when a large current is introduced, the relay is powered off and cannot complete the work due to the generation of impact current; some mechanical transmission (motors, gears and the like) is used for completing switching work, but abrasion and impact caused by factors such as manufacturing precision, errors and the like in the transmission process of a mechanical structure easily cause damage of each part, so that the service life of the relay is short.
In addition, in some relays with high switching frequency, after long-term use, the conductive contacts are easily worn and collapsed under repeated impact, so that the original driving displacement of the driving mechanism cannot enable the contacts to be in close contact, namely, the switching-on cannot be completed.
Disclosure of Invention
The invention aims to provide a transmission system of a small relay, which solves the defects of the existing relay adopting electromagnetic drive and mechanical drive and solves the problem that a conductive contact can not be in close contact after the relay is used for a long time.
The invention realizes the purpose through the following technical scheme:
a transmission system of a small relay is provided with a movable spring copper piece and a static spring copper piece, and comprises a prime moving mechanism, a controller, a plate arranged at the output end of the prime moving mechanism, a sensor and an elastic piece, wherein the controller is in communication connection with the prime moving mechanism and the sensor, and the elastic piece is in supporting connection between the plate and the movable spring copper piece;
the sensor is used for detecting the distance value between the plate and the movable spring copper piece in real time, the standard value of the distance value is preset in the controller, the standard value is smaller than the original length of the elastic piece, when the controller controls the driving mechanism to drive the movable spring copper piece to move towards the static spring copper piece, the distance value signal detected by the sensor is received, and when the distance value is equal to the standard value, the driving mechanism is controlled to stop driving, and the contact switching-on of the movable spring copper piece and the static spring copper piece is completed.
The transmission system further comprises at least two guide rods which are arranged on the movable spring copper piece and are parallel to each other, and the guide rods movably penetrate through the plate and are used for increasing the stability of the plate during movement.
The further improvement is that the elastic part is a spring, and when the spring is in the original length, the plate part is just positioned at the end position of the guide rod.
The further improvement lies in that prime mechanism includes hydro-cylinder, oil tank, cooler, oil pump, advances oil pipe and goes out oil pipe, the oil tank is connected into the return circuit through advancing oil pipe and going out oil pipe and hydro-cylinder, oil pump and cooler are located and are advanced on the oil pipe, the output and the plate of hydro-cylinder are connected, the controller is connected with the oil pump electricity, the controller is used for controlling oil pump work and makes the hydro-cylinder drive movable spring copper spare remove, and then makes movable spring copper spare and quiet spring copper spare contact or separation.
The cooler comprises a box body, a blocking plate is transversely arranged in the box body, the blocking plate divides the interior of the box body into an upper cavity and a lower cavity, cooling liquid is injected into the upper cavity, the lower cavity is communicated with an oil inlet pipe, a plurality of heat exchange pipes are embedded in the blocking plate, two ends of each heat exchange pipe respectively extend into different cavities, and heat exchange media are vacuumized and injected into the heat exchange pipes.
The further improvement is that at least one side wall of the upper cavity of the box body is sealed by a heat conducting plate.
The further improvement is that the heat conducting plate is made of an inner layer of heat conducting silicon adhesive tape and an outer layer of heat radiating film.
The further improvement is that the barrier plate is made of a heat-conducting rubber material.
The invention has the beneficial effects that:
(1) when the transmission system drives the movable spring copper piece to displace and switch on, the stop of the displacement is completely controlled according to the actual compression amount of the elastic piece, so that the conductive contacts can be ensured to be in close contact each time the switch on is carried out, the poor contact condition caused by insufficient displacement amount can not occur when the contacts are worn and collapsed, the condition of excessive extrusion is avoided, the contacts are protected, and the abrasion is delayed;
(2) the system is based on hydraulic transmission, has good transmission stability, high accuracy and long service life, can be used as a precision instrument, is provided with a cooler in a hydraulic transmission mechanism, has outstanding cooling effect, can avoid the phenomenon of overhigh hydraulic oil temperature when a relay acts at high frequency, and improves the use safety.
Drawings
FIG. 1 is a schematic structural diagram of the relay during closing;
FIG. 2 is a schematic structural diagram of the relay when the relay is opened;
FIG. 3 is a schematic view of the internal structure of the cooler;
in the figure: 1. a movable spring copper piece; 2. a stationary spring copper member; 3. a controller; 4. a plate member; 5. a sensor; 6. an elastic member; 7. a guide bar; 8. an oil cylinder; 9. an oil tank; 10. a cooler; 101. a box body; 102. a barrier plate; 103. cooling liquid; 104. a heat exchange pipe; 105. a heat exchange medium; 106. a heat conducting plate; 11. an oil pump; 12. an oil inlet pipe; 13. an oil outlet pipe.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
A transmission system of a small relay is provided with a movable spring copper part 1 with a conductive contact and a static spring copper part 2, the transmission system comprises a prime moving mechanism, a controller 3, a plate 4 arranged at the output end of the prime moving mechanism, a sensor 5 and an elastic part 6 arranged on the plate 4, the controller 3 is in communication connection with the prime moving mechanism and the sensor 5, and the elastic part 6 is in supporting connection between the plate 4 and the movable spring copper part 1;
the sensor 5 is used for detecting the distance value between the plate 4 and the movable spring copper part 1 in real time, the standard value of the distance value is preset in the controller 3, the standard value is smaller than the original length of the elastic part 6, when the controller 3 controls the driving mechanism to drive the movable spring copper part 1 to move towards the static spring copper part 2, the distance value signal detected by the sensor 5 is received, and when the distance value is equal to the standard value, the driving mechanism is controlled to stop driving, and the contact switching-on of the movable spring copper part 1 and the static spring copper part 2 is completed.
During operation, for example, the preset standard value is 80mm, and the original length of the elastic element 6 is 100mm, that is, when the driving is stopped, the compression amount of the elastic element 6 is controlled at 20mm, when the conductive contact is worn and collapsed, the initial displacement amount cannot reach the set compression amount, and for enabling the compression amount to reach 20mm, the controller 3 automatically controls the oil cylinder 8 to drive the movable spring copper element 1 to increase the corresponding displacement amount, so that the manual maintenance is not needed, and the close contact can be ensured all the time. And under the same compression amount, the extrusion pressure of the two contacts is also equal, so that the condition of excessive extrusion is avoided, the contacts are protected, and the abrasion is delayed.
In the invention, the transmission system further comprises at least two guide rods 7 which are arranged on the movable spring copper part 1 and are parallel to each other, and the guide rods 7 movably penetrate through the plate 4 and are used for increasing the stability of the plate 4 during movement. In addition, the elastic part 6 is a spring, and when the spring is in the original length, the plate 4 is just located at the end position of the guide rod 7, and the end position of the guide rod 7 can be added with a plug to avoid falling off.
The prime mechanism comprises an oil cylinder 8, an oil tank 9, a cooler 10, an oil pump 11, an oil inlet pipe 12, an oil outlet pipe 13, and conventional valves such as an electromagnetic directional valve and a throttle valve, wherein the oil tank 9 is connected with the oil cylinder 8 into a loop through the oil inlet pipe 12 and the oil outlet pipe 13, the oil pump 11 and the cooler 10 are arranged on the oil inlet pipe 12, the output end of the oil cylinder 8 is connected with a plate 4, a controller 3 is electrically connected with the oil pump 11, and the controller 3 is used for controlling the oil pump 11 to work so that the oil cylinder 8 drives a movable spring copper part 1 to move, and further the movable spring copper part 1 is in contact with or separated from a static spring copper part 2.
When the device works, the controller 3 controls the oil pump 11 to work, hydraulic oil in the oil tank 9 is conveyed into the oil cylinder 8, the oil cylinder 8 is driven to extend under the action of pressure, the movable spring copper part 1 is driven to move towards the static spring copper part 2, contact of a contact is achieved, and closing is completed; the same principle is used for opening the gate. It should be noted that, the cooler 10 is arranged in the hydraulic circuit of the present invention, and the hydraulic oil can be cooled rapidly during the hydraulic oil transportation process, so that the phenomenon of too high hydraulic oil temperature during the high-frequency action of the relay can be avoided, and the use safety is improved.
Specifically, the cooler 10 includes a box 101, a blocking plate 102 is transversely arranged in the box 101, the blocking plate 102 divides the inside of the box 101 into an upper cavity and a lower cavity, a cooling liquid 103 is injected into the upper cavity, the lower cavity is used for communicating with the oil inlet pipe 12, a plurality of heat exchange pipes 104 are embedded in the blocking plate 102, two ends of each heat exchange pipe 104 respectively extend into different cavities, and a heat exchange medium 105 is pumped in the heat exchange pipes 104 in a vacuum manner and injected. Under the vacuum environment, the boiling point of the liquid heat exchange medium 105 is reduced, when the heat exchanger is used, the lower end of the heat exchange tube 104 is contacted with high-temperature hydraulic oil, the heat exchange medium 105 in the heat exchange tube is heated and vaporized to become gas which moves upwards, enters the upper end of the heat exchange tube 104 and is contacted with the cooling liquid 103, and the gas becomes liquid again under the cooling effect of the cooling liquid 103 and flows back to the lower end, so that the circulation is repeated, the whole heat exchange effect of the cooler 10 is outstanding, and the hydraulic oil in the cavity at the lower part can be cooled quickly.
Preferably, at least one side wall of the upper cavity of the box 101 is sealed by a heat conducting plate 106, the heat conducting plate 106 is made of an inner heat conducting silicon adhesive tape and an outer heat radiating film, the heat radiating film can be a carbon nanotube heat radiating film, and the like, the heat conducting plate 106 of the structure has excellent heat radiating performance, and meanwhile, the tensile resistance and the breakdown strength can be ensured, and the heat conducting plate has the function of radiating heat of the cooling liquid 103, so that excessive heat accumulation of the cooling liquid 103 is avoided, and the cooling effect is reduced. In addition, the blocking plate 102 is made of heat-conducting rubber materials, so that certain heat exchange can be carried out at the position, and the overall heat exchange efficiency is improved.
In the invention, the sensor 5 adopts one of an ultrasonic sensor, a laser sensor and an infrared sensor, and has the characteristics of high precision and small measuring range.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. A transmission system of a small relay is provided with a movable spring copper piece (1) and a static spring copper piece (2), and comprises a prime moving mechanism, and is characterized by further comprising a controller (3), a plate (4) arranged at the output end of the prime moving mechanism, a sensor (5) and an elastic piece (6) arranged on the plate (4), wherein the controller (3) is in communication connection with the prime moving mechanism and the sensor (5), and the elastic piece (6) is in supporting connection between the plate (4) and the movable spring copper piece (1);
sensor (5) are used for the distance value between real-time detection plate (4) and the movable spring copper spare (1), preset the standard value of this distance value in controller (3), and this standard value is less than the original length of elastic component (6), when controller (3) control is former moving mechanism drive movable spring copper spare (1) and is removed towards quiet spring copper spare (2), receive the distance value signal that sensor (5) detected to control former moving mechanism stop driving when the distance value equals the standard value, accomplish the contact combined floodgate of movable spring copper spare (1) and quiet spring copper spare (2).
2. The transmission system of a miniature relay according to claim 1, further comprising at least two parallel guide rods (7) disposed on the movable spring copper member (1), wherein the guide rods (7) movably penetrate through the plate member (4) for increasing the stability of the plate member (4) during movement.
3. A drive system of a miniature relay according to claim 2, characterized in that said elastic member (6) is a spring, and when the spring is at its original length, said plate member (4) is located at the end position of the guide rod (7).
4. The transmission system of a small relay, according to claim 1, characterized in that the prime mover includes an oil cylinder (8), an oil tank (9), a cooler (10), an oil pump (11), an oil inlet pipe (12) and an oil outlet pipe (13), the oil tank (9) is connected to the oil cylinder (8) through the oil inlet pipe (12) and the oil outlet pipe (13) to form a loop, the oil pump (11) and the cooler (10) are disposed on the oil inlet pipe (12), the output end of the oil cylinder (8) is connected to the plate (4), the controller (3) is electrically connected to the oil pump (11), and the controller (3) is configured to control the oil pump (11) to operate so that the oil cylinder (8) drives the movable spring copper member (1) to move, and further, the movable spring copper member (1) is in contact with or separated from the static spring copper member (2).
5. The transmission system of the miniature relay according to claim 4, wherein the cooler (10) comprises a box body (101), a blocking plate (102) is transversely arranged in the box body (101), the blocking plate (102) divides the interior of the box body (101) into an upper cavity and a lower cavity, the upper cavity is filled with cooling liquid (103), the lower cavity is communicated with the oil inlet pipe (12), the blocking plate (102) is embedded with a plurality of heat exchange pipes (104), two ends of each heat exchange pipe (104) respectively extend into different cavities, and the interior of each heat exchange pipe (104) is vacuumized and filled with a heat exchange medium (105).
6. The actuator system of a miniature relay according to claim 5, wherein at least one side wall of the upper cavity of said housing (101) is sealed by a heat conductive plate (106).
7. The actuator system of a miniature relay according to claim 6, wherein said heat conducting plate (106) is made of an inner layer of heat conducting silicone adhesive and an outer layer of heat dissipating film.
8. The transmission system of a miniature relay according to claim 5, wherein said barrier plate (102) is made of a heat conductive rubber material.
9. A drive system of a miniature relay according to claim 1, characterized in that said sensor (5) is one of an ultrasonic sensor, a laser sensor, an infrared sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110837341.4A CN113782360B (en) | 2021-07-23 | 2021-07-23 | Transmission system of miniature relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110837341.4A CN113782360B (en) | 2021-07-23 | 2021-07-23 | Transmission system of miniature relay |
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| Publication Number | Publication Date |
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| CN113782360A true CN113782360A (en) | 2021-12-10 |
| CN113782360B CN113782360B (en) | 2023-07-11 |
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| CN202110837341.4A Active CN113782360B (en) | 2021-07-23 | 2021-07-23 | Transmission system of miniature relay |
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Effective date of registration: 20221230 Address after: 315000 3rd floor, west side of plant 7, Binhai New Area Small and micro Industry Park, Fenghua District Economic Development Zone, Ningbo City, Zhejiang Province Applicant after: NINGBO JINCHEN TECHNOLOGY Co.,Ltd. Address before: 4th Floor, Building 2 #, Yiliteng Industrial Park, No. 19, Qinghe Road, Luyang Industrial Zone, Hefei City, Anhui Province, 230000 Applicant before: HEFEI HEXU RELAY TECHNOLOGY Co.,Ltd. |
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