CN113161200A - Dustproof mistake of preventing of relay protection touches heat exchanger that looses - Google Patents

Dustproof mistake of preventing of relay protection touches heat exchanger that looses Download PDF

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Publication number
CN113161200A
CN113161200A CN202110425211.XA CN202110425211A CN113161200A CN 113161200 A CN113161200 A CN 113161200A CN 202110425211 A CN202110425211 A CN 202110425211A CN 113161200 A CN113161200 A CN 113161200A
Authority
CN
China
Prior art keywords
dustproof
fixedly connected
touch
heat dissipation
relay protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110425211.XA
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Chinese (zh)
Inventor
何坤霖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Haiyan Construction Engineering Co ltd
Original Assignee
Hunan Haiyan Construction Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Haiyan Construction Engineering Co ltd filed Critical Hunan Haiyan Construction Engineering Co ltd
Priority to CN202110425211.XA priority Critical patent/CN113161200A/en
Publication of CN113161200A publication Critical patent/CN113161200A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/02Bases; Casings; Covers
    • H01H50/023Details concerning sealing, e.g. sealing casing with resin
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H45/00Details of relays
    • H01H45/02Bases; Casings; Covers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H45/00Details of relays
    • H01H45/02Bases; Casings; Covers
    • H01H45/04Mounting complete relay or separate parts of relay on a base or inside a case
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H45/00Details of relays
    • H01H45/12Ventilating; Cooling; Heating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/02Bases; Casings; Covers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/02Bases; Casings; Covers
    • H01H50/04Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041Details concerning assembly of relays
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/12Ventilating; Cooling; Heating

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The invention relates to the technical field of relay protection covers, in particular to a dustproof and mistaken-touch-preventing heat dissipation cover for relay protection, which aims to solve the technical problem that the existing partial relay protection cover is difficult to effectively prevent dust; the prior protective cover of the relay is inconvenient to disassemble; and the problem that the existing partial relay protective cover has no function of preventing false touch. In order to solve the technical problem, the invention provides a dustproof and mistaken-touch-preventing heat dissipation cover for relay protection, which comprises a base, wherein a relay main body is fixedly connected to the middle position of the top of the base. The invention is composed of a heat dissipation dustproof mechanism, an error touch prevention mechanism and an installation mechanism, when the temperature in the protective cover rises, an expansion air bag is expanded by heat to push up a sliding rod, at the moment, a connecting rod presses a hinged baffle to deflect, high-temperature gas in the protective cover is discharged, and when the temperature in the protective cover falls, the expansion air bag contracts to enable the sliding rod to drive the baffle to reset so as to seal and prevent dust on the side wall of the protective cover.

Description

Dustproof mistake of preventing of relay protection touches heat exchanger that looses
Technical Field
The invention relates to the field of relay protection covers, in particular to a dustproof and mistaken-touch-preventing heat dissipation cover for relay protection.
Background
A relay is an electric control device for generating a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement, and generally includes a base and a cover.
The existing relay protection cover only dissipates heat to the relay through the through grooves formed in the surface of the protection cover, but dust easily enters the interior of the relay through the through grooves in the long-term use process, so that the service life of the relay is influenced; the existing part of relay protection covers are usually clamped with a base in a plastic buckle mode, but the plastic buckle is easy to break due to excessive force applied in the dismounting process, so that the normal use is influenced; meanwhile, the protective cover of the existing partial relay does not have a function of preventing false touch in the working process, and certain potential safety hazards are realized.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a dustproof and mistaken-touch preventing heat dissipation cover for relay protection, which solves the problem that the existing partial relay protection cover is difficult to effectively prevent dust; the prior protective cover of the relay is inconvenient to disassemble; and the problem that the existing partial relay protective cover has no function of preventing false touch.
In order to achieve the purpose, the invention is realized by the following technical scheme: a relay protection dustproof and false touch prevention heat dissipation cover comprises a base, wherein a relay main body is fixedly connected to the middle position of the top of the base, the top of the base is movably connected with a protection cover matched with the relay main body, rectangular through grooves are symmetrically formed in two sides of the protection cover, a baffle is hinged to the bottom of each rectangular through groove, a heat dissipation dustproof mechanism is movably connected between each baffle and the inner wall of the protection cover, and a false touch prevention mechanism matched with the rectangular through grooves is movably connected to the top of each baffle;
an installation mechanism is movably connected between the two sides of the top of the base and the lower part of the protective cover.
Preferably, the heat dissipation dustproof mechanism comprises two limiting cages, the side walls of the two limiting cages are respectively and fixedly connected to two sides of the inner wall of the protective cover, an expansion air bag is fixedly connected to the inner bottom surface of each limiting cage, a sliding rod is fixedly connected to the top of each expansion air bag, one end of each sliding rod penetrates through each limiting cage and is fixedly connected with a limiting block, two supporting sliding sleeves are movably connected to the surfaces of the sliding rods, and the side walls of the supporting sliding sleeves are fixedly connected to the inner walls of the adjacent protective covers;
the middle part equidistance of slide bar articulates there is the connecting rod, the one end of connecting rod is with adjacent the upper portion of baffle is articulated.
Preferably, the inner wall of the supporting sliding sleeve is connected with balls in an equidistant rotating mode along the circumference, and the surface of the sliding rod is overlapped on the surface of the balls.
Preferably, the false touch prevention mechanism comprises a movable groove, the movable groove is formed in the top of the baffle, a compression spring is fixedly connected to the inner bottom surface of the movable groove, a movable plate is fixedly connected to the top of the compression spring, and sawteeth are formed in the top of the movable plate.
Preferably, the upper portion of the movable plate is an inclined surface, and the top surface of the rectangular through groove is an inclined surface matched with the upper portion of the movable plate.
Preferably, the mounting mechanism comprises two moving grooves, the two moving grooves are symmetrically formed in the front side and the rear side of the base, the inside of each moving groove is connected with a U-shaped inserted bar in a sliding mode, and the lower portion of the protective cover is symmetrically provided with inserting grooves matched with the two U-shaped inserted bars;
the inner wall on shifting chute upper portion has seted up the guide way, the middle part fixedly connected with guide way matched with guide block of U type inserted bar, the lower part of U type inserted bar with adjacent fixedly connected with reset spring between the inner wall of shifting chute.
Preferably, the top of the U-shaped inserted bar is an inclined plane, and the lower part of the protective cover is provided with a chute matched with the top of the U-shaped inserted bar.
Preferably, the top of the inner wall of the rectangular through groove is fixedly connected with a stop block, and the upper part of the stop block is lapped on the surface of the stop block.
Advantageous effects
The invention provides a dustproof and mistaken-touch-preventing heat dissipation cover for relay protection. Compared with the prior art, the method has the following beneficial effects:
(1) this dustproof mistake of preventing of relay protection touches heat exchanger that looses passes through inflation gasbag, the cooperation of parts such as slide bar and baffle is used, when the inside temperature of protection casing risees, the inflation gasbag receives the thermal energy to push up the slide bar upwards, make the slide bar drive articulated connecting rod deflect, the connecting rod supports to press articulated baffle to deflect this moment, discharge the inside high-temperature gas of protection casing, the inflation gasbag shrink after the inside temperature of protection casing descends, make the slide bar take the baffle to reset and seal dustproof to the protection casing lateral wall.
(2) This dustproof mistake of preventing of relay protection touches heat exchanger that looses uses through the cooperation of parts such as U type inserted bar, slot and reset spring, presses the lower part of two U type inserted bars of swing joint on the base, can make the slot of seting up on U type inserted bar upper portion and the protective cover remove to peg graft, and the quick dismantlement protection casing of being convenient for causes cracked condition to take place when avoiding using the plastics buckle to dismantle.
(3) This dustproof mistake of preventing of relay protection touches heat exchanger that looses uses through the cooperation of parts such as compression spring, fly leaf and sawtooth, to the protection casing inside in-process that dispels the heat after the baffle deflects, compression spring supports to press the fly leaf to shift out from the movable groove inside at baffle top, and the sawtooth of seting up at the fly leaf top this moment exposes, makes to have the effect of mistake prevention touching around the protection casing, promotes the security performance in the relay use.
Drawings
FIG. 1 is a front cross-sectional view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 1 at B in accordance with the present invention;
FIG. 4 is a side view of the position of the flapper and flapper of the present invention;
FIG. 5 is a left sectional view of the U-shaped insert bar and slot of the present invention;
fig. 6 is a top view of the overall structure of the present invention.
In the figure: 1. a base; 2. a relay main body; 3. a protective cover; 4. a rectangular through groove; 5. a baffle plate; 6. a heat dissipation dustproof mechanism; 601. a limiting cage; 602. inflating the balloon; 603. a slide bar; 604. a limiting block; 605. supporting the sliding sleeve; 606. a connecting rod; 7. a false touch prevention mechanism; 701. a movable groove; 702. a compression spring; 703. a movable plate; 704. saw teeth; 8. an installation mechanism; 801. a moving groove; 802. a U-shaped inserted link; 803. a slot; 804. a guide groove; 805. a guide block; 806. a return spring.
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. 1-6, a dustproof and false-touch preventing heat dissipation cover for relay protection comprises a base 1, a relay main body 2 is fixedly connected to the middle position of the top of the base 1, a protective cover 3 matched with the relay main body 2 is movably connected to the top of the base 1, rectangular through grooves 4 are symmetrically formed in two sides of the protective cover 3, a baffle 5 is hinged to the bottom of each rectangular through groove 4, a heat dissipation dustproof mechanism 6 is movably connected between the baffle 5 and the inner wall of the protective cover 3, and a false-touch preventing mechanism 7 matched with the rectangular through grooves 4 is movably connected to the top of the baffle 5.
An installation mechanism 8 is movably connected between the two sides of the top of the base 1 and the lower part of the protective cover 3.
In the invention, the heat dissipation dustproof mechanism 6 comprises two limiting cages 601, the side walls of the two limiting cages 601 are respectively and fixedly connected to the two sides of the inner wall of the protective cover 3, the inner bottom surface of each limiting cage 601 is fixedly connected with an expansion airbag 602, the top of each expansion airbag 602 is fixedly connected with a sliding rod 603, one end of each sliding rod 603 penetrates through the corresponding limiting cage 601 and is fixedly connected with a limiting block 604, the surface of each sliding rod 603 is movably connected with two supporting sliding sleeves 605, and the side walls of the supporting sliding sleeves 605 are fixedly connected to the inner walls of the adjacent protective covers 3.
The middle part of the sliding rod 603 is hinged with a connecting rod 606 at equal intervals, and one end of the connecting rod 606 is hinged with the upper part of the adjacent baffle 5. The inflatable bag 602 is provided with a gas that is easily inflated by heat.
In the invention, the inner wall of the supporting sliding sleeve 605 is connected with balls in a rotating way at equal intervals along the circumference, and the surface of the sliding rod 603 is lapped on the surface of the balls. It should be noted that the frictional resistance during the movement of the slide bar 603 is reduced by the cooperation of the balls and the slide bar 603.
In the invention, the false touch prevention mechanism 7 comprises a movable groove 701, the movable groove 701 is arranged at the top of the baffle 5, a compression spring 702 is fixedly connected to the inner bottom surface of the movable groove 701, a movable plate 703 is fixedly connected to the top of the compression spring 702, and sawteeth 704 are arranged at the top of the movable plate 703.
In the present invention, the upper portion of the movable plate 703 is a slope, and the top surface of the rectangular through groove 4 is a slope surface matching with the upper portion of the movable plate 703. It should be noted that, when the relay is not in use, and the baffle 5 deflects to seal the rectangular through groove 4, the movable plate 703 deflects along with the baffle 5, so that the inclined surface at the top of the movable plate 703 is matched with the inclined surface at the top of the rectangular through groove 4 to slide, and the movable plate 703 moves towards the inside of the movable groove 701 formed in the baffle 5, and at this time, the saw teeth 704 formed at the top of the movable plate 703 are not exposed outside the protective cover 3, so that an operator can take and use the relay conveniently.
In the invention, the mounting mechanism 8 comprises two moving grooves 801, the two moving grooves 801 are symmetrically arranged at the front side and the rear side of the base 1, the inside of the moving grooves 801 is slidably connected with U-shaped insertion rods 802, and the lower part of the protective cover 3 is symmetrically provided with insertion grooves 803 matched with the two U-shaped insertion rods 802.
A guide groove 804 is formed in the inner wall of the upper portion of the moving groove 801, a guide block 805 matched with the guide groove 804 is fixedly connected to the middle portion of the U-shaped insert rod 802, and a return spring 806 is fixedly connected between the lower portion of the U-shaped insert rod 802 and the inner wall of the adjacent moving groove 801.
In the invention, the top of the U-shaped insert rod 802 is a slope, and the lower part of the protective cover 3 is provided with a chute matched with the top of the U-shaped insert rod 802. It should be noted that, when the protection cover 3 is inserted and installed to the top of the base 1, the chute at the lower part of the protection cover 3 is matched with the inclined plane at the top of the U-shaped insertion rod 802, so that the rapid installation and the convenient use can be realized.
In the invention, the top of the inner wall of the rectangular through groove 4 is fixedly connected with a stop block, and the upper part of the baffle 5 is lapped on the surface of the stop block. It should be noted that the baffle 5 can be limited by the stop block, so that the sealing effect of the baffle 5 on the rectangular through groove 4 is ensured.
When the relay is used, when the temperature in the protective cover 3 rises, the expansion airbag 602 is heated and expanded to push the sliding rod 603 upwards, so that the hinged connecting rod 606 is driven to deflect in the upward moving process of the sliding rod 603, at the moment, the connecting rod 606 presses the hinged baffle 5 to deflect, the baffle 5 is gradually opened in the rectangular through groove 4, high-temperature gas in the protective cover 3 is exhausted, after the temperature in the protective cover 3 drops, the expansion airbag 602 contracts, at the moment, the sliding rod 603 slides and moves downwards in the two supporting sliding sleeves 605 and drives the connecting rod 606 to move, the connecting rod 606 drives the baffle 5 to reset to seal and prevent dust on the side wall of the protective cover 3, the relay can effectively dissipate heat in the using process, and the interior of the relay can be prevented from dust when the relay is not used; meanwhile, when the baffle 5 deflects and then radiates the inside of the protective cover 3, the compression spring 702 presses the movable plate 703 to move out of the movable groove 701 at the top of the baffle 5, and at the moment, the saw teeth 704 formed at the top of the movable plate 703 are exposed, so that the surrounding of the protective cover 3 has an effect of preventing accidental touch, and the safety performance of the relay in the using process is improved; when the protection casing 3 is dismantled to needs, press the lower part of two U type inserted bar 802 of swing joint on base 1, can make the slot 803 of seting up on U type inserted bar 802 upper portion and the protection casing 3 remove to peg graft, the quick dismantlement protection casing 3 of being convenient for, cause cracked condition to take place when avoiding using the plastics buckle to dismantle.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a dustproof mistake of preventing of relay protection touches heat exchanger that looses, includes base (1), its characterized in that: the relay protection device is characterized in that a relay main body (2) is fixedly connected to the middle position of the top of the base (1), the top of the base (1) is movably connected with a protection cover (3) matched with the relay main body (2), rectangular through grooves (4) are symmetrically formed in two sides of the protection cover (3), a baffle (5) is hinged to the bottom of each rectangular through groove (4), a heat dissipation dustproof mechanism (6) is movably connected between each baffle (5) and the inner wall of the protection cover (3), and an anti-false-touch mechanism (7) matched with the rectangular through grooves (4) is movably connected to the top of each baffle (5);
an installation mechanism (8) is movably connected between the two sides of the top of the base (1) and the lower part of the protective cover (3).
2. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 1, characterized in that: the heat dissipation dustproof mechanism (6) comprises two limiting cages (601), the side walls of the two limiting cages (601) are fixedly connected to two sides of the inner wall of the protective cover (3) respectively, an expansion air bag (602) is fixedly connected to the inner bottom surface of each limiting cage (601), a sliding rod (603) is fixedly connected to the top of each expansion air bag (602), one end of each sliding rod (603) penetrates through each limiting cage (601) and is fixedly connected with a limiting block (604), two supporting sliding sleeves (605) are movably connected to the surfaces of the sliding rods (603), and the side walls of the supporting sliding sleeves (605) are fixedly connected to the inner walls of the adjacent protective covers (3);
the middle part equidistance of slide bar (603) articulates there is connecting rod (606), the one end of connecting rod (606) is with adjacent the upper portion of baffle (5) is articulated.
3. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 2, characterized in that: the inner wall of the supporting sliding sleeve (605) is connected with balls in an equidistant rotating mode along the circumference, and the surface of the sliding rod (603) is lapped on the surfaces of the balls.
4. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 1, characterized in that: prevent mistake and touch mechanism (7) including activity groove (701), the top at baffle (5) is seted up in activity groove (701), the interior bottom surface fixedly connected with compression spring (702) of activity groove (701), the top fixedly connected with fly leaf (703) of compression spring (702), sawtooth (704) have been seted up at the top of fly leaf (703).
5. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 4, wherein: the upper part of the movable plate (703) is provided with an inclined surface, and the top surface of the rectangular through groove (4) is provided with an inclined surface matched with the upper part of the movable plate (703).
6. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 1, characterized in that: the mounting mechanism (8) comprises two moving grooves (801), the two moving grooves (801) are symmetrically formed in the front side and the rear side of the base (1), U-shaped inserting rods (802) are connected to the inside of the moving grooves (801) in a sliding mode, and inserting grooves (803) matched with the two U-shaped inserting rods (802) are symmetrically formed in the lower portion of the protective cover (3);
a guide groove (804) is formed in the inner wall of the upper portion of the moving groove (801), a guide block (805) matched with the guide groove (804) is fixedly connected to the middle of the U-shaped insert rod (802), and a reset spring (806) is fixedly connected between the lower portion of the U-shaped insert rod (802) and the inner wall of the adjacent moving groove (801).
7. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 6, wherein: the top of U type inserted bar (802) is established to the inclined plane, the lower part of protection casing (3) is seted up with U type inserted bar (802) top matched with chute.
8. The dustproof and false-touch-proof heat dissipation cover for relay protection according to claim 1, characterized in that: the top of the inner wall of the rectangular through groove (4) is fixedly connected with a stop block, and the upper part of the baffle plate (5) is lapped on the surface of the stop block.
CN202110425211.XA 2021-04-20 2021-04-20 Dustproof mistake of preventing of relay protection touches heat exchanger that looses Pending CN113161200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110425211.XA CN113161200A (en) 2021-04-20 2021-04-20 Dustproof mistake of preventing of relay protection touches heat exchanger that looses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110425211.XA CN113161200A (en) 2021-04-20 2021-04-20 Dustproof mistake of preventing of relay protection touches heat exchanger that looses

Publications (1)

Publication Number Publication Date
CN113161200A true CN113161200A (en) 2021-07-23

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CN202110425211.XA Pending CN113161200A (en) 2021-04-20 2021-04-20 Dustproof mistake of preventing of relay protection touches heat exchanger that looses

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CN (1) CN113161200A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114005704A (en) * 2021-10-25 2022-02-01 申乐股份有限公司 Relay with mechanical sealing performance
CN114325459A (en) * 2021-12-24 2022-04-12 国家电网有限公司 DC power supply data detection and diagnosis device
CN114388298A (en) * 2022-01-15 2022-04-22 王泽凯 Waterproof type PLC relay with function of quickly reducing voltage
CN114768406A (en) * 2022-04-01 2022-07-22 上海蕙黔化工科技有限公司 Carrier steam treatment device based on catalyst production by impregnation method
CN114810840A (en) * 2022-05-23 2022-07-29 陈治国 Possesses split type heat dissipation bearing frame of overheat prevention
CN117423580A (en) * 2023-12-19 2024-01-19 陕西众力通用电器股份有限公司 Optical relay with overcurrent protection function

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114005704A (en) * 2021-10-25 2022-02-01 申乐股份有限公司 Relay with mechanical sealing performance
CN114005704B (en) * 2021-10-25 2024-04-30 申乐股份有限公司 Relay with mechanical sealing performance
CN114325459A (en) * 2021-12-24 2022-04-12 国家电网有限公司 DC power supply data detection and diagnosis device
CN114325459B (en) * 2021-12-24 2024-01-16 国家电网有限公司 DC power supply data detection and diagnosis device
CN114388298A (en) * 2022-01-15 2022-04-22 王泽凯 Waterproof type PLC relay with function of quickly reducing voltage
CN114768406A (en) * 2022-04-01 2022-07-22 上海蕙黔化工科技有限公司 Carrier steam treatment device based on catalyst production by impregnation method
CN114768406B (en) * 2022-04-01 2023-09-26 上海蕙黔新材料科技有限公司 Carrier vapor treatment equipment for producing catalyst based on impregnation method
CN114810840A (en) * 2022-05-23 2022-07-29 陈治国 Possesses split type heat dissipation bearing frame of overheat prevention
CN117423580A (en) * 2023-12-19 2024-01-19 陕西众力通用电器股份有限公司 Optical relay with overcurrent protection function
CN117423580B (en) * 2023-12-19 2024-03-01 陕西众力通用电器股份有限公司 Optical relay with overcurrent protection function

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