CN108493053B - Contact base, manufacturing method of contact base and storage battery relay - Google Patents
Contact base, manufacturing method of contact base and storage battery relay Download PDFInfo
- Publication number
- CN108493053B CN108493053B CN201810269449.6A CN201810269449A CN108493053B CN 108493053 B CN108493053 B CN 108493053B CN 201810269449 A CN201810269449 A CN 201810269449A CN 108493053 B CN108493053 B CN 108493053B
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- Prior art keywords
- contact
- base
- manufacturing
- red copper
- contact base
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 47
- 239000010949 copper Substances 0.000 claims abstract description 47
- 239000003822 epoxy resin Substances 0.000 claims abstract description 25
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Switches (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention provides a contact base, a manufacturing method of the contact base and a storage battery relay, and relates to the technical field of relays. The contact base includes: the base body, the one end that is used for being connected with the relay top cap of base body is the upper end for the one end that is connected with the bottom of relay is the lower extreme, and the base body has the accommodation slotted hole of upper end direction and lower terminal direction both ends open-ended. The contact red copper penetrates through the seat body from the circumferential surface of the seat body and passes through the accommodating groove hole. The insulating plate is embedded in the accommodating slot hole and seals the opening at the lower end. And the epoxy resin part is arranged in the accommodating groove hole and wraps the part of the contact red copper positioned in the accommodating groove hole. The base body of the contact base is tightly connected with the contact red copper, and is not easy to loosen. The manufacturing method of the contact base can manufacture the contact base, and gaps between the base body and the contact red copper are avoided to a great extent. By using the contact base, the storage battery relay has better reliability in working.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a contact base, a manufacturing method of the contact base and a storage battery relay.
Background
The relay is an automatic control device, when the input quantity (electric, magnetic, acoustic, optical and thermal) reaches a certain value, the output quantity will change in a jump mode. The automobile relay is a relay used in an automobile, and the relay has high switching load power and high shock resistance and vibration resistance. The power supply in the automobile is multipurpose 12V, and the coil voltage is mostly designed to be 12V. The storage battery is used for supplying power and the voltage is unstable; the environment condition is bad, the actuation voltage V is less than or equal to 60 percent VH (rated working voltage); the coil overvoltage is allowed to reach 1.5VH. The coil power consumption is larger, generally 1.6-2W, and the temperature rise is higher. The environmental requirements are quite severe: in an engine room, the environmental temperature range is required to be-40-125 ℃, and the environmental temperature ranges of other positions are-40-85 ℃; relays used in engine compartments are subject to attack by sand dust, water, salt, oil; the vibration and impact are quite severe.
The automobile relay consists of a magnetic circuit system, a contact system and a restoring mechanism. The magnetic circuit system consists of iron core, yoke iron, armature iron, coil and other parts. The contact system consists of parts such as a static reed, a movable reed, a contact base and the like. The restoring mechanism consists of restoring reed or tension spring.
The existing contact base has the following defects:
The contact metal sheet is not firmly connected with the insulating material, so that the reliability of the whole relay in use is affected, and particularly in long-term use, the use problem is more likely to occur.
Disclosure of Invention
The invention aims to provide a contact base which can prevent gaps from being generated between contact red copper and a base body during manufacturing and ensure the stability of the contact red copper in the base body.
Another object of the present invention is to provide a method for manufacturing a contact base, which can manufacture the contact base.
It is a further object of the present invention to provide a battery relay comprising the above contact base having all the characteristics of the contact base.
Embodiments of the present invention are implemented as follows:
an embodiment of the present invention provides a contact base including:
The base body is provided with accommodating slots which are opened at two ends in the upper end direction and the lower end direction;
The contact red copper penetrates through the seat body from the circumferential surface of the seat body and passes through the containing slot hole;
The insulating plate is embedded in the containing slot hole and seals the opening at the lower end;
And the epoxy resin part is arranged in the accommodating groove hole and wraps the part of the contact red copper positioned in the accommodating groove hole.
In addition, the contact base provided by the embodiment of the invention can also have the following additional technical characteristics:
In an alternative embodiment of the present invention, the number of the receiving slots is four, the cross section of the seat body is circular, the seat body is divided into four equal parts, and each receiving slot is located in the range of one quarter circle;
the number of the contact red copper is two, and each contact red copper respectively penetrates through two containing slotted holes.
In an alternative embodiment of the present invention, the receiving slot is shaped as an arcuate slot.
The embodiment of the invention provides a manufacturing method of a contact base, which is used for manufacturing the contact base, and comprises the following steps:
Placing contact red copper in a preheated seat body mould for manufacturing a seat body;
after the seat body mold is closed and sealed, pouring an insulating material and manufacturing a seat body embedded with contact red copper;
an insulating plate is arranged at an opening of the accommodating slot hole, which is positioned at one side of the lower end;
injecting epoxy resin into the opening of the containing slot hole at one side of the upper end to wrap the part of the contact red copper in the containing slot hole;
The epoxy resin is dried to form an epoxy resin portion.
In an alternative embodiment of the present invention, the temperature of the seat mold after preheating is within 140-170 ℃.
In an alternative embodiment of the invention, the insulating plate is bonded to the seat body using an adhesive.
In an alternative embodiment of the present invention, the method for manufacturing the contact base further includes:
The burrs of the base are removed before the insulating plate is installed.
In an alternative embodiment of the present invention, the epoxy resin portion is formed by drying, followed by natural drying and then re-drying.
In an alternative embodiment of the invention, the time of natural drying is 24 hours and the time of thermal drying is 3 hours.
The embodiment of the invention provides a storage battery relay which comprises the contact base.
The beneficial effects of the invention are as follows:
the base body of the contact base is more firmly connected with the contact red copper, and looseness caused by gaps can be avoided. The manufacturing method of the contact base can avoid gaps from being easily generated between the contact red copper and the base body in the manufacturing process, and improves the yield. And the battery relay has better working reliability by using the contact base.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a view of a base body of a contact base and a contact red copper in a lower end direction provided in embodiment 1 of the present invention;
fig. 2 is a view of the contact base provided in embodiment 1 of the present invention in the lower end direction;
fig. 3 is a view of the base body of the contact base and the upper end direction of the contact red copper provided in embodiment 1 of the present invention;
fig. 4 is a view of the contact base provided in embodiment 1 of the present invention in the upper end direction;
Fig. 5 is a process flow chart of a method for manufacturing a contact base according to embodiment 1 of the present invention;
Fig. 6 is a schematic diagram of a battery relay according to embodiment 2 of the present invention.
Icon: a 100-contact base; 10-a base; 11-a receiving slot; 30-contact red copper; 50-insulating plates; 70-epoxy resin part; 200-battery relay.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 4, the present embodiment provides a contact base 100, which includes:
the base body 10, one end of the base body 10 used for being connected with the top cover of the relay is an upper end, one end used for being connected with the bottom cover of the relay is a lower end, and the base body 10 is provided with containing slotted holes 11 which are opened at two ends in the upper end direction and the lower end direction;
The contact red copper 30, the contact red copper 30 is worn on the seat body 10 from the peripheral surface of the seat body 10 and passes through the accommodating slot 11;
the insulating plate 50 is embedded in the accommodating slot 11 and seals the opening at the lower end of the insulating plate 50;
An epoxy portion 70, the epoxy portion 70 being disposed in the receiving slot 11 and wrapping the portion of the contact red copper 30 located in the receiving slot 11.
Specifically, the number of the containing slots 11 is four, the section of the seat body 10 is circular, the seat body 10 is divided into four equal parts, and each containing slot 11 is respectively positioned in the range of one quarter circle;
specifically, the number of the contact red copper 30 is two, and each contact red copper 30 passes through two accommodation slots 11, respectively.
In more detail, the receiving slot 11 has an arcuate slot shape. And the four arc-shaped groove-shaped receiving slots 11 are co-rounded.
More preferably, the receiving slots 11 in adjacent two quadrants are symmetrically disposed.
The principle of this embodiment is:
Through the research on the prior art, the fact that the connection between the contact metal sheet and the insulating material is not firm is mainly that gaps are easily generated between the contact metal sheet and the insulating material in the manufacturing process of the product, and the produced product is easy to loosen due to the gaps in the practical application.
In this regard, the present embodiment contemplates a new contact base 100.
Specifically, by providing the accommodating slot 11, after the contact red copper 30 is embedded in the seat body 10, the accommodating slot 11 can be filled with the insulating plate 50 and the epoxy resin portion 70, so that a gap between the contact red copper 30 and the seat body 10 is filled with the epoxy resin portion 70, thereby eliminating the gap between the contact red copper 30 and the seat body 10, and ensuring no looseness between the contact red copper 30 and the seat body 10.
The receiving slots 11 are symmetrically and uniformly arranged, and simultaneously are arranged in a common circle, so that the influence on the structural strength of the base 10 can be avoided, and the arrangement of the epoxy resin parts 70 at two parts of each contact red copper 30 is facilitated, so that the connection between the contact red copper 30 and the base 10 is further enhanced.
The contact base 100 of the present embodiment reinforces the connection between the contact red copper 30 and the base 10 by providing the housing slot 11 in the base 10 and matching the epoxy resin portion 70 through the insulating plate 50, and eliminates the gap, thereby ensuring a reliable use quality when used in a relay.
The contact base 100 of the present embodiment may be manufactured by the following manufacturing method of the contact base 100. Specifically, referring to fig. 5, the method includes:
placing contact red copper 30 in a preheated seat body die for manufacturing the seat body 10;
After the die of the seat body is closed and sealed, pouring an insulating material and manufacturing a seat body 10 embedded with a contact red copper 30;
An insulating plate 50 is installed at an opening of the receiving slot 11 at the lower end side;
Injecting epoxy resin into the opening of the accommodating slot 11 at one side of the upper end to wrap the part of the contact red copper 30 in the accommodating slot 11;
The epoxy resin dries to form an epoxy resin portion 70.
The base mold is manufactured in advance, and the manufacturing process of the base mold can refer to the prior art, and the main difference is that the base mold is additionally provided with a part for manufacturing the accommodating slot 11, so that the details are not repeated here.
In the preheating step, the temperature of the preheated seat body mold is within 140-170 ℃.
In addition, the mold closing and sealing of the seat body mold means that only the injection molding of the insulating material can be accommodated, and the insulating material cannot leak out of the seat body mold after being injected into the seat body mold.
In the installation of the insulating plate 50, the present embodiment uses an adhesive to adhere the insulating plate 50 to the seat body 10.
The method for manufacturing the contact base 100 of the present embodiment further includes:
The burrs of the base 10 are removed before the insulating plate 50 is mounted. Therefore, gaps can be avoided in the subsequent steps, the fluidity of the epoxy resin after injection is guaranteed to be good, the epoxy resin is uniformly distributed, and no bubbles are generated.
In the process of forming the epoxy resin portion 70 by drying, natural drying is performed first, and then heat drying is performed. The natural drying means that after the epoxy resin injection molding is completed, the entire contact base 100 is placed in a natural environment, that is, without manual intervention. After naturally drying for a certain period of time, the entire contact base 100 is then heat-dried.
The thermal drying may be by placing it in an oven with some heating to promote faster drying of the epoxy resin, while also allowing the epoxy resin to further expel some of the fine bubbles that may be present. Other devices that can heat the contact base 100 to some extent or other methods of heat drying may be used instead of the oven, and specific reference may be made to the prior art, which is not repeated here.
Specifically, in this example, the time of natural drying was 24 hours, and the time of thermal drying was 3 hours. Wherein h is commonly referred to as hours.
It is conceivable that the natural drying time and the thermal drying time can be adjusted to a certain extent in different areas and in different climates. The time refers to that the quality of the product manufactured by adopting the time index can be well guaranteed, and the inferior product is not easy to occur.
Through a series of steps of the method, the manufacture of the contact base 100 can be realized, the product quality is also ensured, no gap exists between the contact red copper 30 and the base body 10, and the connection is tight and reliable.
It is conceivable that even if the cross section of the base 10 is not circular, according to this method, the opening of the receiving slot 11 is performed at the portion of the contact red copper 30 passing through the base 10, and then the insulating plate 50 is provided and epoxy resin is poured, so that the connection between the contact red copper 30 and the base 10 is realized, the gap of connection is eliminated, and the reliability of the contact base 100 is increased.
It is conceivable that the reliability of the connection between the contact metal sheet and the housing 10 can be improved in accordance with this method even if not the contact red copper 30 but other types of contact metal sheets.
Example 2
Referring to fig. 6, the present embodiment provides a battery relay 200, which includes the contact base 100 in embodiment 1.
Other structures of the battery relay 200, such as the magnetic circuit system, the restoring mechanism, and the static reed and the movable reed in the contact system, can refer to the prior art, and are not described herein.
By using the contact base 100 in embodiment 1, the operation of the battery relay 200 can be more reliable, and the problem that the gap between the contact red copper 30 and the base body 10 affects the whole use is avoided.
In summary, the base body 10 of the contact base 100 of the present invention is more firmly connected to the contact red copper 30, so that the looseness caused by the gap can be avoided. The manufacturing method of the contact base 100 can avoid the gap easily generated between the contact red copper 30 and the base body 10 in the manufacturing process, and improve the yield. And the battery relay 200 is more reliable in operation by using the contact base 100 described above.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method of making a contact base, comprising:
The base body is provided with accommodating slots which are opened at two ends in the upper end direction and the lower end direction;
The contact red copper penetrates through the seat body from the circumferential surface of the seat body and passes through the containing slot hole;
The insulating plate is embedded in the containing slot hole and seals the opening at the lower end;
an epoxy portion disposed within the receiving slot and encapsulating a portion of the contact red copper within the receiving slot;
The manufacturing method of the contact base comprises the following steps:
Placing contact red copper in a preheated seat body mould for manufacturing a seat body;
after the seat body mold is closed and sealed, pouring an insulating material and manufacturing a seat body embedded with contact red copper;
an insulating plate is arranged at an opening of the accommodating slot hole, which is positioned at one side of the lower end;
injecting epoxy resin into the opening of the containing slot hole at one side of the upper end to wrap the part of the contact red copper in the containing slot hole;
The epoxy resin is dried to form an epoxy resin portion.
2. The method for manufacturing a contact base according to claim 1, wherein the number of the receiving slots is four, the cross section of the base body is circular, the base body is divided into four equal parts, and each receiving slot is respectively located in a quarter circle range;
the number of the contact red copper is two, and each contact red copper respectively penetrates through two containing slotted holes.
3. The method of manufacturing a contact base according to claim 1 or 2, wherein the receiving slot is arc-shaped.
4. The method of claim 1, wherein the temperature of the preheated base mold is within 140-170 ℃.
5. The method of manufacturing a contact base according to claim 1, wherein the insulating plate is bonded to the base body using an adhesive.
6. The method of manufacturing a contact base according to claim 1, further comprising:
The burrs of the base are removed before the insulating plate is installed.
7. The method of manufacturing a contact base according to claim 1, wherein the epoxy resin portion is formed by drying, followed by natural drying and then thermal drying.
8. The method of manufacturing a contact base according to claim 7, wherein the time of natural drying is 24 hours and the time of thermal drying is 3 hours.
9. A battery relay comprising a contact base manufactured by the method of manufacturing a contact base according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269449.6A CN108493053B (en) | 2018-03-29 | 2018-03-29 | Contact base, manufacturing method of contact base and storage battery relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269449.6A CN108493053B (en) | 2018-03-29 | 2018-03-29 | Contact base, manufacturing method of contact base and storage battery relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108493053A CN108493053A (en) | 2018-09-04 |
| CN108493053B true CN108493053B (en) | 2024-04-26 |
Family
ID=63317318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810269449.6A Active CN108493053B (en) | 2018-03-29 | 2018-03-29 | Contact base, manufacturing method of contact base and storage battery relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493053B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990086787A (en) * | 1998-05-29 | 1999-12-15 | 이동일 | Manufacturing method of relay for semiconductor test |
| CN101443872A (en) * | 2006-05-12 | 2009-05-27 | 欧姆龙株式会社 | Electromagnetic relay, and method and system for adjusting same |
| CN102280784A (en) * | 2010-06-10 | 2011-12-14 | 北京固融科技有限公司 | Rotary electric connecting device as well as plug, socket and patch board |
| CN102969203A (en) * | 2012-11-16 | 2013-03-13 | 贵州振华群英电器有限公司 | Group transfer contact square TO-5 sealed electromagnetic relay |
| CN103730295A (en) * | 2014-01-13 | 2014-04-16 | 广西睿奕科技发展有限公司 | Magnetic latching relay with flexible static contact part |
| CN204155858U (en) * | 2014-11-11 | 2015-02-11 | 向言国 | Automobile retarder relay |
| CN205984818U (en) * | 2016-08-30 | 2017-02-22 | 浙江中继科技有限公司 | Electromagnetic relay |
| CN106653493A (en) * | 2016-11-22 | 2017-05-10 | 浙江众信新能源科技股份有限公司 | Relay |
| CN208045419U (en) * | 2018-03-29 | 2018-11-02 | 常州庆福机电有限公司 | Contact pedestal and battery relay |
-
2018
- 2018-03-29 CN CN201810269449.6A patent/CN108493053B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990086787A (en) * | 1998-05-29 | 1999-12-15 | 이동일 | Manufacturing method of relay for semiconductor test |
| CN101443872A (en) * | 2006-05-12 | 2009-05-27 | 欧姆龙株式会社 | Electromagnetic relay, and method and system for adjusting same |
| CN102280784A (en) * | 2010-06-10 | 2011-12-14 | 北京固融科技有限公司 | Rotary electric connecting device as well as plug, socket and patch board |
| CN102969203A (en) * | 2012-11-16 | 2013-03-13 | 贵州振华群英电器有限公司 | Group transfer contact square TO-5 sealed electromagnetic relay |
| CN103730295A (en) * | 2014-01-13 | 2014-04-16 | 广西睿奕科技发展有限公司 | Magnetic latching relay with flexible static contact part |
| CN204155858U (en) * | 2014-11-11 | 2015-02-11 | 向言国 | Automobile retarder relay |
| CN205984818U (en) * | 2016-08-30 | 2017-02-22 | 浙江中继科技有限公司 | Electromagnetic relay |
| CN106653493A (en) * | 2016-11-22 | 2017-05-10 | 浙江众信新能源科技股份有限公司 | Relay |
| CN208045419U (en) * | 2018-03-29 | 2018-11-02 | 常州庆福机电有限公司 | Contact pedestal and battery relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108493053A (en) | 2018-09-04 |
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