CN115642054A - DC relay with permanent magnet housing - Google Patents
DC relay with permanent magnet housing Download PDFInfo
- Publication number
- CN115642054A CN115642054A CN202211428911.5A CN202211428911A CN115642054A CN 115642054 A CN115642054 A CN 115642054A CN 202211428911 A CN202211428911 A CN 202211428911A CN 115642054 A CN115642054 A CN 115642054A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- upper frame
- holder
- case
- relay
- 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
Links
Images
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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention relates to a permanent magnet assembly disposed in a dc relay, a method of assembling a permanent magnet assembly disposed in a dc relay, and a method of assembling a dc relay including a permanent magnet assembly. The permanent magnet assembly includes: a permanent magnet case disposed inside an upper frame or a lower frame of the dc relay, the permanent magnet case having permanent magnet insertion portions provided on a front surface and a rear surface thereof; a permanent magnet provided in the permanent magnet insertion portion; and a permanent magnet holder coupled to the permanent magnet housing to support the permanent magnet.
Description
The application is a divisional application of the application with the Chinese patent application number of 201880083566.1, the application date of 2018, 05 and 28, and the invention name of the direct current relay with the permanent magnet shell.
Technical Field
The present invention relates to a dc relay, and more particularly, to a dc relay including a permanent magnet case.
Background
Generally, a Direct Current Relay (Direct Current Relay) or an electromagnetic Contactor (Magnetic Contactor) is a circuit switching device that transmits a mechanical driving and Current signal using the principle of an electromagnet, and is installed in various industrial devices, machines, vehicles, and the like.
In particular, electric vehicles (Electric vehicles), such as hybrid vehicles, fuel cell vehicles, golf carts, electric forklifts, and the like, are each provided with an Electric Vehicle Relay (Electric Vehicle Relay) for supplying Electric power of a battery to a power generation device and an Electric part or cutting off Electric power of the battery supplied to the power generation device and the Electric part. Such a dc relay is one of the most important core components for an electric vehicle.
Fig. 1 and 2 show a longitudinal sectional view of a related art dc relay and an exploded perspective view of an upper frame assembly.
The direct current relay includes: a cover body composed of an upper frame 1 and a lower frame 2; an intermediate plate 9 disposed inside the cover body; the contact parts 3 and 4 and the arc extinguishing part 8 are arranged on the upper part of the middle plate 9; and an actuator 7 provided below the intermediate plate 9. The actuator 7 may be a device that operates using the principle of an electromagnet.
The fixed contacts 3 of the contact portions 3, 4 are exposed to the top surface of the upper frame 1 so as to be connectable with a load or a power source.
The upper frame 1 is provided with contact portions 3 and 4 and an arc extinguishing portion 8 inside. The contact portions 3 and 4 are composed of a fixed contact 3 and a movable contact 4, and the movable contact 4 is moved by an actuator 7 to come into contact with or separate from the fixed contact 3. The arc extinguishing section 8 is typically constructed as an arc chamber formed of a ceramic material.
The permanent magnet 5 is provided to effectively control an Arc (Arc) generated when the contact portions 3, 4 are opened. The permanent magnet 5 controls a rapidly flowing current, i.e., an arc, by generating a magnetic field, and a permanent magnet holder 6 is further provided to fix the permanent magnet 5.
In the prior art, an assembly form in which the permanent magnet 5 and the permanent magnet holder 6 are coupled to the upper frame 1 is adopted. That is, the projection 6a of the permanent magnet holder 6 is assembled to the seating portion 1a of the upper frame 1 by interference fit. Therefore, in the manufacturing process, the worker needs to apply a large force to perform the assembly. Alternatively, an additional jig (jigs: auxiliary machine assembling mechanism) for fixing the permanent magnet holder 6 or the upper frame 1 for work is required. Accordingly, a large number of working processes are required and manufacturing costs are increased.
Further, since the permanent magnet holder 6 is manufactured by being press-fitted into the upper frame 1, if the permanent magnet holder 6 is not accurately set to a jig in the manufacturing process or is detached from the setting portion 1a of the upper frame 1, an arc generated when the permanent magnet 5 is broken due to breakage cannot be accurately controlled, and there is a problem that a failure occurs or the product life is shortened.
Disclosure of Invention
Problems to be solved by the invention
The invention aims to provide a direct current relay with improved assembly of a permanent magnet assembly.
Another object of the present invention is to provide a dc relay in which a permanent magnet does not come out of position during use of the dc relay.
Means for solving the problems
According to an embodiment of the present invention, a dc relay having a permanent magnet case includes: an upper frame and a lower frame, the lower surface of the upper frame being open, the top surface of the lower frame being open and combined with the lower portion of the upper frame; a permanent magnet case formed in a box shape with an open bottom surface and disposed inside the upper frame or the lower frame, the permanent magnet case having permanent magnet insertion portions on a front surface and a rear surface thereof; a permanent magnet provided in the permanent magnet insertion portion; and a permanent magnet holder coupled to the permanent magnet housing and supporting the permanent magnet.
Here, the permanent magnet insertion portion is composed of an open hole formed in the front surface and the rear surface of the permanent magnet case, and an enclosure wall surrounding the open hole.
In addition, a support surface for supporting the permanent magnet is formed to protrude from a rear portion of the permanent magnet insertion portion.
In addition, guide portions supporting the permanent magnet holder are formed on front and rear surfaces of the permanent magnet housing.
The guide portion is composed of an upper guide portion formed on an upper portion or a top surface of the permanent magnet case and a lower guide portion formed on a lower portion or a bottom surface of the permanent magnet case.
The permanent magnet holders are formed in a shape of "Contraband" and are configured as a pair.
In addition, open holes are formed on the left and right side surfaces of the permanent magnet case.
In addition, the permanent magnet insertion portions are provided in two on the front surface and the rear surface of the permanent magnet housing, respectively.
In addition, a partition wall is formed between the two permanent magnet insertion portions provided on the front surface or the rear surface of the permanent magnet housing.
In addition, the permanent magnet motor further comprises an upper frame, and the upper frame is arranged on the upper portion of the permanent magnet shell.
Further, a pressing portion for pressing and fixing the permanent magnet case is provided on an inner surface of the upper frame.
Effects of the invention
The permanent magnet of the dc relay including the permanent magnet case according to the embodiment of the present invention is provided in the form of a module disposed in the permanent magnet case, and therefore can be manufactured independently of the upper frame.
In addition, according to the present invention, since the permanent magnet is fixed by the permanent magnet holder, an additional jig is not required. The permanent magnet is fixed by the permanent magnet holder in a simple insertion manner and has a wide contact area, and thus a stable fixed state is maintained.
Further, according to the present invention, since the structure in which the permanent magnet holder is coupled to the upper frame is eliminated, product defects due to assembly failure or detachment during use do not occur.
In addition, according to the present invention, the permanent magnet housing, and the permanent magnet holder are each formed by a simple assembly structure, and therefore, are easily manufactured.
In addition, according to the present invention, since the permanent magnet holder receives a downward pressure from the upper frame, a fixed state is stably maintained.
Drawings
Fig. 1 is a longitudinal sectional view of a related art direct current relay.
Fig. 2 is an exploded perspective view of an upper frame assembly applied to a dc relay according to the related art.
Fig. 3 is a perspective view of a dc relay according to an embodiment of the present invention.
Fig. 4 is a perspective view of a lower portion of the dc relay shown in fig. 3.
Fig. 5 is a perspective view of a permanent magnet assembly and an upper frame applied to a dc relay according to an embodiment of the present invention.
Fig. 6 is an exploded perspective view of fig. 5.
FIG. 7 is a perspective view of the permanent magnet housing shown in FIG. 6.
Fig. 8 is a perspective view of a permanent magnet assembly and an upper frame applied to a dc relay according to another embodiment of the present invention.
Fig. 9 is an exploded perspective view of fig. 8.
Fig. 10 is a perspective view of the permanent magnet housing shown in fig. 9.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are detailed descriptions for enabling those of ordinary skill in the art to easily carry out the present invention, and are not meant to limit the technical spirit and scope of the present invention.
Fig. 3 is a perspective view of a dc relay according to an embodiment of the present invention, fig. 4 is a perspective view of a lower portion of the dc relay shown in fig. 3, and fig. 5 is a perspective view of a permanent magnet assembly and an upper frame applied to the dc relay according to an embodiment of the present invention. A dc relay including a permanent magnet case according to each embodiment of the present invention will be described in detail with reference to the accompanying drawings.
A dc relay provided with a permanent magnet case according to an embodiment of the present invention includes: an upper frame 10 and a lower frame 15, the lower surface of the upper frame 10 being open, and the upper surface of the lower frame 15 being open and combined with the lower portion of the upper frame 10; a permanent magnet case 20 formed in a box shape with an open bottom and disposed inside the upper frame 10 or the lower frame 15, the permanent magnet case 20 having permanent magnet insertion portions 23 on front and rear surfaces thereof; permanent magnets 30, 35 provided in the permanent magnet insertion portion 23; and a permanent magnet holder 40 coupled to the permanent magnet housing 20 and supporting the permanent magnets 30 and 35.
The housings 10, 15 are formed in a box shape to accommodate the respective components. The housings 10, 15 may be formed in a rectangular parallelepiped shape. The housings 10, 15 may be constituted by an upper frame 10 and a lower frame 15. The upper frame 10 and the lower frame 15 may be manufactured by a molding injection process from a synthetic resin.
The upper frame 10 may be formed in a box shape having an open bottom surface. A fixed contact hole 11 is formed in the top surface of the upper frame 10, and a fixed contact 18 may be inserted into the fixed contact hole 11. When the fixed contacts 18 are paired, the fixed contact holes 11 are also paired.
A pressing portion 12 is formed to protrude from the inner surface of the upper frame 10, and the pressing portion 12 presses and fixes the permanent magnet case 20 downward. When the upper frame 10 is coupled to the lower frame 15, the pressing portion 12 contacts the top surface of the permanent magnet housing 20.
The fixed contact 18 is fixedly provided to the arc chamber 17 and exposed to the top surface of the upper frame 10 through the fixed contact hole 11. The fixed contact 18 is a terminal connected to a power source or a load. The upper end of the fixed contact 18 may be connected to a power source or a load, and the lower end of the fixed contact 18 may be in contact with a movable contact. The fixed contact 18 is formed with a connection groove at an upper end portion so that a contact terminal of a load can be inserted.
The lower frame 15 may be formed in a box shape having an open top surface. The lower frame 15 incorporates a contact portion, an arc extinguishing portion, and an actuator. The contact portion and the arc extinguishing portion are exposed to an upper portion of the lower frame 15. The arc extinguishing section may be constituted by the arc chamber 17. The arc chamber 17 is arranged above an intermediate plate 16, said intermediate plate 16 being built into the lower frame 15. The arc chamber 17 is formed of a material having excellent insulation and heat resistance, such as a ceramic material. The fixed contact 18 of the contact portion is exposed to the upper portion of the arc chamber 17.
The movable contact (not shown, see fig. 1 and 2) is a terminal inserted into the arc chamber 17 and brought into contact with or separated from the pair of fixed contacts 18. The movable contact is brought into contact with or separated from the fixed contact 18. The movable contact is in contact with lower end portions of the pair of fixed contacts 18. The movable contact is fixed to a drive shaft of the actuator, and is linearly driven along the drive shaft so as to be able to contact with or separate from the fixed contact 18. When the movable contact contacts the fixed contact 18, the circuit is closed and the current is conducted, and when the movable contact is separated from the fixed contact 18, the circuit is opened and the flow of the current is cut off.
The permanent magnet 30 is provided to appropriately control the arc generated at the time of disconnection. The permanent magnet 30 will be explained again.
Reference will be further made to fig. 6 and 7. Fig. 6 is an exploded perspective view of a permanent magnet assembly and an upper frame applied to a dc relay according to an embodiment of the present invention, and fig. 7 is a perspective view of a permanent magnet housing.
The permanent magnet housing 20 provides a space in which the permanent magnet 30 can be installed independently of the upper frame 10. The permanent magnet case 20 may be formed in a box shape with an open bottom.
A fixed contact insertion hole 21 into which the fixed contact 18 can be inserted is formed in the top surface of the permanent magnet housing 20. An auxiliary contact mounting portion 22 may be provided on the top surface of the permanent magnet housing 20, and an auxiliary contact (not shown) may be mounted on the auxiliary contact mounting portion 22.
Permanent magnet insertion portions 23 into which the permanent magnets 30 can be inserted are provided on the front and rear surfaces of the permanent magnet case 20. The permanent magnet insertion part 23 may be provided as a surrounding wall formed at the front and rear surfaces of the permanent magnet housing 20. The enclosure walls may be formed in a form of enclosing the open holes 23a formed at the front and rear surfaces of the permanent magnet housing 20.
The permanent magnet insertion portion 23 is provided with a permanent magnet holding surface 24 for preventing the permanent magnet 30 from being separated inward and holding the permanent magnet 30. The permanent magnet support surface 24 may be formed by a surface provided on the rear side of the permanent magnet insertion portion 23. The permanent magnet support surface 24 may be constituted by a surface (a surface parallel to the front surface of the permanent magnet housing) that protrudes vertically along the rear portion of the permanent magnet insertion portion 23.
The permanent magnet insertion portions 23 are provided on the front surface and the rear surface of the permanent magnet housing 20, respectively. The permanent magnet insertion parts 23 may be symmetrically provided at the front and rear surfaces of the permanent magnet housing 20.
A chamfered portion 25 may be provided at one corner of the permanent magnet insertion portion 23. This provides a reference for mounting the permanent magnet 30, thereby facilitating assembly. That is, the chamfered portion 25 plays a role of preventing polarity inversion due to confusion of the mounting direction of the permanent magnet 30.
A support portion 29 is provided to protrude partially from the front surface of the permanent magnet insertion portion 23. The support portion 29 may be supported by being in contact with the rib portion 13 of the upper frame 10. In addition, the support portion 29 supports the end portion of the permanent magnet holder 40.
The guide portions 27, 28 may be formed by surfaces or walls that protrude at the upper and lower portions of the permanent magnet housing 20, respectively.
The upper guide portion 27 and the lower guide portion 28 are formed at a predetermined interval. The separation distance between the upper guide portion 27 and the lower guide portion 28 may be set to a length slightly larger than the height of the permanent magnet holder 40. Thus, when the permanent magnet holder 40 is inserted between the upper guide portion 27 and the lower guide portion 28, it can be smoothly inserted without being stuck. The permanent magnet holder 40 may be inserted and coupled between the upper and lower guide portions 27 and 28 in a sliding manner.
The guide portions 27, 28 may be symmetrically disposed on the front and rear surfaces of the permanent magnet housing 20.
A permanent magnet holder 40 is provided. The permanent magnet holder 40 is provided to fix and support the permanent magnets 30 and 35 to the permanent magnet case 20. The permanent magnet holder 40 may be formed in a shape of "Contraband". That is, the permanent magnet holder 40 may be constituted by the front surface portion 41, the side surface portion 42, and the rear surface portion 43. The permanent magnet 30 is not separated from the permanent magnet housing 20 by the permanent magnet holder 40. Specifically, the permanent magnet 30 is supported by the permanent magnet holder 40, and therefore, it does not come off from the permanent magnet insertion portion 23.
The front surface portion 41 of the permanent magnet holder 40 supports the front surface of the permanent magnet 30 disposed at the front, and the rear surface portion 43 of the permanent magnet holder 40 supports the rear surface of the permanent magnet 35 disposed at the rear. That is, the front surface portion 41 of the permanent magnet holder 40 supports the permanent magnet 30 disposed on the front surface so as not to be separated forward, and the rear surface portion 43 of the permanent magnet holder 40 supports the permanent magnet 35 disposed on the rear surface so as not to be separated rearward.
The permanent magnet holder 40 is inserted into and coupled to the guide portions 27, 28 of the permanent magnet housing 20. The permanent magnet holder 40 is inserted and coupled between the upper guide portion 27 and the lower guide portion 28. The permanent magnet holder 40 may be inserted and coupled to the guide portions 27, 28 in a sliding manner. The front surface portion 41 of the permanent magnet holder 40 is inserted into the guide portions 27, 28 formed on the front surface of the permanent magnet case 20, and the rear surface portion 43 of the permanent magnet holder 40 is inserted into the guide portions 27, 28 formed on the rear surface of the permanent magnet case 20.
The front and rear surfaces of the permanent magnets 30, 35 are supported by the permanent magnet holder 40 and the supporting surface 24 of the permanent magnet housing 20, thereby being stably fixed. The permanent magnet 30 is supported between the permanent magnet holder 40 and the support surface 24 of the permanent magnet housing 20, and therefore does not come off in the forward or rearward direction.
The permanent magnets 30, 35 are assembled from the permanent magnet housing 20 and the permanent magnet holder 40. In the assembly process, the permanent magnet assemblies 20, 30, 40 are disposed on the top surface of the intermediate plate 16 so as to surround the arc chamber 17, and the upper frame 10 is provided above the permanent magnet assemblies 20, 30, 40. When the upper frame 10 is coupled to the lower frame 15, the pressing portion 12 of the upper frame 10 presses the top surface of the permanent magnet housing 20 or the upper guide portion 27, thereby fixing the permanent magnet assemblies 20, 30, 40.
Referring to fig. 8 to 10, a permanent magnet assembly of a dc relay according to another embodiment of the present invention will be described. Fig. 8 is a perspective view of a permanent magnet assembly and an upper frame applied to a dc relay according to another embodiment of the present invention, fig. 9 is an exploded perspective view of fig. 8, and fig. 10 is a perspective view of a permanent magnet housing shown in fig. 9. The same reference numerals are used for the same portions as those of the above embodiment.
The permanent magnet assemblies 120, 130, 40 are composed of a permanent magnet housing 120, a permanent magnet 130, and a permanent magnet holder 40.
The permanent magnet housing 120 provides a space in which the permanent magnet 130 can be installed independently of the upper frame 10. The permanent magnet case 120 may be formed in a box shape with an open bottom.
A fixed contact insertion hole 121 into which the fixed contact 18 can be inserted is formed in the top surface of the permanent magnet housing 120. An auxiliary contact mounting portion 122 may be provided on the top surface of the permanent magnet housing 120, and an auxiliary contact (not shown) may be mounted on the auxiliary contact mounting portion 122.
Permanent magnet insertion portions 123 into which the permanent magnets 130 can be inserted are provided on the front and rear surfaces of the permanent magnet housing 120. Permanent magnet insertion portions 123 may be provided as surrounding walls formed at the front and rear surfaces of permanent magnet housing 120. The surrounding wall may be formed in a form of surrounding the open holes 123a formed at the front and rear surfaces of the permanent magnet housing 120.
Permanent magnet support surface 124 is provided in permanent magnet insertion portion 123 to prevent permanent magnet 130 from being disengaged inward and to support permanent magnet 130. Permanent magnet support surface 124 may be formed by a surface provided on the rear side of permanent magnet insertion portion 123. Permanent magnet support surface 124 may be constituted by a surface (a surface parallel to the front surface of the permanent magnet housing) that protrudes vertically along the rear portion of permanent magnet insertion portion 123.
Permanent magnet insertion portions 123 are provided on the front surface and the rear surface of permanent magnet housing 120, respectively. Permanent magnet insertion portions 123 may be symmetrically disposed on the front and rear surfaces of permanent magnet housing 120.
A chamfered portion 125 may be provided at one corner of the permanent magnet insertion portion 123. This provides a reference for mounting the permanent magnet 130, thereby facilitating assembly. That is, the chamfered portion 125 serves to prevent the polarity from being reversed due to confusion of the installation direction of the permanent magnet 130. For the permanent magnet insertion portions 123 symmetrically formed at the front and rear surfaces of the permanent magnet housing 120, the chamfered portions 125 may be formed in the same direction. For example, the chamfered portion 125 formed at the front permanent magnet case 120 and the chamfered portion 125 formed at the rear permanent magnet case 120 may be formed at the corner at the upper left end.
Permanent magnet insertion portion 123 is divided into two by partition wall 129. For the sake of convenience of distinction, the permanent magnet insertion portion formed on the left side in the drawing is referred to as a first permanent magnet insertion portion 123A, and the permanent magnet insertion portion formed on the right side in the drawing is referred to as a second permanent magnet insertion portion 123B.
First permanent magnet insertion portion 123A and second permanent magnet insertion portion 123B may be formed substantially the same. First permanent magnet insertion portion 123A and second permanent magnet insertion portion 123B are each formed by a surrounding wall and a support surface 124 is formed at the back, and first permanent magnet insertion portion 123A and second permanent magnet insertion portion 123B may be formed at both the front surface and the back surface of permanent magnet housing 120.
For example, the south pole of permanent magnet 130 inserted into first permanent magnet insertion portion 123A faces forward, and the north pole of permanent magnet 131 inserted into second permanent magnet insertion portion 123B faces forward. Although permanent magnet 130 inserted into first permanent magnet insertion portion 123A and permanent magnet 131 inserted into second permanent magnet insertion portion 123B are the same permanent magnet, the direction of polarity depends on chamfered portions 125A, 125B. Therefore, at the time of assembly, it is only necessary to simply assemble to the insertable direction without paying attention to the polarity. The same applies to the permanent magnets 135, 136 disposed in the permanent magnet insertion portion formed on the rear surface of the permanent magnet housing 120.
As described above, chamfered portion 125 functions to determine the polarity direction of second permanent magnet 30, 35 disposed in first permanent magnet insertion portion 123A and second permanent magnet insertion portion 123B.
The guide portions 127, 128 may be formed by surfaces or walls that protrude at the upper and lower portions of the permanent magnet housing 120, respectively.
The upper guide portion 127 and the lower guide portion 128 are formed at a predetermined interval. The separation distance of the upper guide portion 127 and the lower guide portion 128 may be set to a length slightly larger than the height of the permanent magnet holder 40. Thus, when the permanent magnet holder 40 is inserted between the upper guide portion 127 and the lower guide portion 128, it can be smoothly inserted without being stuck. The permanent magnet holder 40 may be inserted and coupled between the upper guide part 127 and the lower guide part 128 in a sliding manner.
The guide parts 127, 128 may be symmetrically disposed at the front and rear surfaces of the permanent magnet housing 120.
A permanent magnet holder 40 is provided. The permanent magnet holder 40 is provided to fix and support the permanent magnets 130 and 135 to the permanent magnet case 120. The permanent magnet holder 40 may be formed in a shape of "Contraband". That is, the permanent magnet holder 40 may be constituted by the front surface portion 41, the side surface portion 42, and the rear surface portion 43. The permanent magnet 130 is not separated from the permanent magnet housing 120 by the permanent magnet holder 40. Specifically, permanent magnet 130 is supported by permanent magnet holder 40 so that it does not come off permanent magnet insertion portion 123.
The front surface portion 41 of the permanent magnet holder 40 supports the front surface of the permanent magnet 130 disposed at the front, and the rear surface portion 43 of the permanent magnet holder 40 supports the rear surface of the permanent magnet 135 disposed at the rear. That is, the front surface portion 41 of the permanent magnet holder 40 supports the permanent magnet 130 provided on the front surface so as not to be separated forward, and the rear surface portion 43 of the permanent magnet holder 40 supports the permanent magnet 135 provided on the rear surface so as not to be separated rearward.
The permanent magnet holder 40 is inserted into the guide portions 127 and 128 combined with the permanent magnet housing 120. The permanent magnet holder 40 is inserted and coupled between the upper guide portion 127 and the lower guide portion 128. The permanent magnet holder 40 may be inserted and coupled to the guide portions 127, 128 in a sliding manner. The front surface portion 41 of the permanent magnet holder 40 is inserted into the guide portions 127 and 128 formed on the front surface of the permanent magnet case 120, and the rear surface portion 43 of the permanent magnet holder 40 is inserted into the guide portions 127 and 128 formed on the rear surface of the permanent magnet case 120.
The front and rear surfaces of the permanent magnets 130, 135 are supported by the permanent magnet holder 40 and the support surface 124 of the permanent magnet housing 120, thereby being stably fixed. The permanent magnet 130 is supported between the permanent magnet holder 40 and the support surface 124 of the permanent magnet housing 120, and therefore does not come off in the forward or rearward direction.
The permanent magnets 130, 135 are assembled from the permanent magnet housing 120 and the permanent magnet holder 40. In the assembly process, the permanent magnet assemblies 120, 130, 40 surround the arc chamber 17 and are disposed on the top surface of the intermediate plate 16, and the upper frame 10 is provided above the permanent magnet assemblies 120, 130, 40. When the upper frame 10 is coupled to the lower frame 15, the pressing portion 12 of the upper frame 10 presses the top surface of the permanent magnet housing 120 or the upper guide portion 127, thereby fixing the permanent magnet assemblies 120, 130, 40.
According to the dc relay including the permanent magnet case according to each embodiment of the present invention, since the permanent magnet is provided in the form of a unit disposed in the permanent magnet case, it can be manufactured independently of the upper frame.
In addition, since the permanent magnet is fixed by the permanent magnet holder, an additional jig is not required. The permanent magnet is fixed by the permanent magnet holder in a simple insertion manner and has a wide contact area, and thus a stable fixed state is maintained.
In addition, because the structure that the permanent magnet keeper is combined with the upper frame is removed, the product defects caused by poor assembly or detachment in the using process can not occur.
In addition, the permanent magnet housing, and the permanent magnet holder are each formed by a simple assembly structure, and therefore, are easy to manufacture.
In addition, since the permanent magnet holder receives a downward pressure from the upper frame, a fixed state is stably maintained.
The above-described embodiments are examples for implementing the present invention, and various modifications and variations can be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to illustrate the present invention, and the scope of the technical spirit of the present invention is not limited by such embodiments. That is, the scope of the invention should be construed by claims, and all technical ideas within the equivalent scope thereof should be construed to be included in the scope of the claims.
Claims (24)
1. A permanent magnet assembly configured in a dc relay, comprising:
a permanent magnet case disposed inside an upper frame or a lower frame of the dc relay, the permanent magnet case having permanent magnet insertion portions provided on a front surface and a rear surface thereof;
a permanent magnet provided in the permanent magnet insertion portion; and
and the permanent magnet holder is combined with the permanent magnet shell and supports the permanent magnet.
2. The permanent magnet assembly according to claim 1,
the permanent magnet case is formed in a box shape with an open bottom surface, and a space in which the permanent magnet can be installed independently of the upper frame is formed.
3. The permanent magnet assembly according to claim 1,
a fixed contact insertion hole into which a fixed contact is inserted is formed in the top surface of the permanent magnet housing.
4. The permanent magnet assembly according to claim 1,
and an auxiliary contact mounting part for arranging an auxiliary contact is formed on the top surface of the permanent magnet shell.
5. The permanent magnet assembly according to claim 1,
guide portions that guide and support the permanent magnet holder are formed on the upper and lower surfaces or the front and rear surfaces of the permanent magnet case.
6. The permanent magnet assembly according to claim 1,
a support portion that contacts the rib portion of the upper frame and supports an end portion of the permanent magnet holder is formed on a front surface of the permanent magnet insertion portion.
7. The permanent magnet assembly according to claim 1,
a chamfered portion for guiding the installation direction of the permanent magnet is formed at one side corner of the permanent magnet insertion portion.
8. The permanent magnet assembly according to claim 1,
also includes a middle plate built in the lower frame.
9. The permanent magnet assembly according to claim 8,
the permanent magnet assembly is disposed on the top surface of the intermediate plate, and the upper frame is disposed on the upper portion of the permanent magnet assembly.
10. The permanent magnet assembly according to claim 5,
the permanent magnet holder is inserted and coupled in a sliding manner between an upper guide portion and a lower guide portion of the permanent magnet housing that guides and supports the permanent magnet holder.
11. The permanent magnet assembly according to claim 10,
the permanent magnet holder is formed in a shape of "Contraband" and includes a front surface portion, a side surface portion, and a rear surface portion.
12. The permanent magnet assembly according to claim 11,
the front face portion supports a front face of the permanent magnet disposed on the front face,
the rear face portion supports a rear face of the permanent magnet disposed on the rear face.
13. The permanent magnet assembly according to claim 11,
the front surface portion is inserted into a guide portion formed on a front surface of the permanent magnet,
the rear surface portion is inserted into a guide portion formed on a rear surface of the permanent magnet.
14. The permanent magnet assembly according to claim 1,
one or two permanent magnet insertion portions are formed at the front surface and the rear surface of the permanent magnet housing, respectively,
a permanent magnet is inserted into each permanent magnet insertion portion.
15. The permanent magnet assembly according to claim 14,
in the case where the two permanent magnet insertion portions are formed on the front surface and the rear surface of the permanent magnet case, respectively, a partition wall that supports an end portion of the permanent magnet holder is formed between the permanent magnet insertion portions.
16. A direct current relay, comprising:
an upper frame having an open bottom;
a lower frame having an open top surface and coupled to a lower portion of the upper frame; and
and a permanent magnet assembly disposed inside the upper frame.
17. The direct current relay according to claim 16,
and a fixed contact hole for inserting a fixed contact is formed on the top surface of the upper frame.
18. The direct current relay according to claim 16,
a rib portion for supporting the permanent magnet case from the side is formed on the inner side surface of the upper frame.
19. The direct current relay according to claim 18,
a rib receiving portion for receiving the permanent magnet housing and the auxiliary contact mounting portion is formed on an inner side surface of the upper frame.
20. The direct current relay according to claim 19,
and a pressing part for pressing and fixing the permanent magnet shell is arranged on the inner side surface of the upper frame.
21. The direct current relay according to claim 16,
the arc chamber is arranged on the upper portion of the middle plate internally arranged on the lower frame and provided with a fixed contact.
22. The direct current relay according to claim 21,
the permanent magnet assembly is configured to cover the arc chamber and press between the upper frame and the intermediate plate.
23. A method of assembling a permanent magnet assembly configured for a dc relay, comprising:
inserting a permanent magnet into permanent magnet insertion portions formed on front and rear surfaces of a permanent magnet case; and
a step of combining a permanent magnet holder that supports the permanent magnet inserted into the permanent magnet housing.
24. A method of assembling a dc relay including a permanent magnet assembly, comprising:
inserting a permanent magnet into permanent magnet insertion portions formed on front and rear surfaces of a permanent magnet case; and
a step of combining a permanent magnet holder that supports a permanent magnet inserted into the permanent magnet housing;
mounting the permanent magnet case to which the permanent magnet holder is coupled to an upper frame of a dc relay; and
and combining the upper frame and the lower frame on which the permanent magnet case is mounted.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0013566 | 2018-02-02 | ||
| KR1020180013566A KR102032517B1 (en) | 2018-02-02 | 2018-02-02 | DC Relay with Magnet Housing |
| CN201880083566.1A CN111512409B (en) | 2018-02-02 | 2018-05-28 | DC relay with permanent magnet housing |
| PCT/KR2018/006011 WO2019151581A1 (en) | 2018-02-02 | 2018-05-28 | Direct current relay having permanent magnet housing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880083566.1A Division CN111512409B (en) | 2018-02-02 | 2018-05-28 | DC relay with permanent magnet housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115642054A true CN115642054A (en) | 2023-01-24 |
Family
ID=67479351
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211428911.5A Pending CN115642054A (en) | 2018-02-02 | 2018-05-28 | DC relay with permanent magnet housing |
| CN201880083566.1A Active CN111512409B (en) | 2018-02-02 | 2018-05-28 | DC relay with permanent magnet housing |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880083566.1A Active CN111512409B (en) | 2018-02-02 | 2018-05-28 | DC relay with permanent magnet housing |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102032517B1 (en) |
| CN (2) | CN115642054A (en) |
| WO (1) | WO2019151581A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114342032A (en) | 2019-08-28 | 2022-04-12 | Ls电气株式会社 | Arc path forming part and direct current relay including the same |
| WO2021040174A1 (en) * | 2019-08-28 | 2021-03-04 | 엘에스일렉트릭㈜ | Arc path formation unit and direct current relay including same |
| CN211208340U (en) * | 2019-12-04 | 2020-08-07 | Ls产电株式会社 | Arc path forming part and direct current relay including the same |
| KR102278651B1 (en) * | 2019-12-04 | 2021-07-16 | 엘에스일렉트릭(주) | Arc path forming part and direct current relay include the same |
| CN114256030A (en) * | 2020-09-23 | 2022-03-29 | 比亚迪股份有限公司 | Relay with a movable contact |
| CN114256029B (en) * | 2020-09-23 | 2023-07-11 | 比亚迪股份有限公司 | Relay device |
| KR20230075641A (en) * | 2021-11-23 | 2023-05-31 | 엘에스일렉트릭(주) | Arc inducement part and direct current relay include the same |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4835427B2 (en) * | 2006-12-25 | 2011-12-14 | パナソニック電工株式会社 | relay |
| DE102010004642B4 (en) * | 2010-01-13 | 2012-09-27 | Integrated Dynamics Engineering Gmbh | Magnetic actuator and method for its assembly |
| JP5806562B2 (en) * | 2011-01-12 | 2015-11-10 | 富士電機株式会社 | Magnetic contactor |
| CN102592865B (en) * | 2011-01-13 | 2015-11-25 | 通用汽车环球科技运作有限责任公司 | For the dual bipolar magnetic field of the linear low density contactor of automotive lithium-ion battery system |
| JP5992721B2 (en) * | 2012-04-27 | 2016-09-14 | 富士通コンポーネント株式会社 | Electromagnetic relay |
| CN203312085U (en) * | 2013-06-21 | 2013-11-27 | 苏州华锦来电子科技有限公司 | Arc extinguishing device of high-voltage direct-current relay |
| KR101517386B1 (en) * | 2013-12-02 | 2015-05-04 | 이숙희 | switch |
| KR101869719B1 (en) * | 2014-09-15 | 2018-06-21 | 엘에스산전 주식회사 | Elctromagnet Contactor |
| KR200486468Y1 (en) * | 2014-09-29 | 2018-07-05 | 엘에스산전 주식회사 | Direct Current Relay |
| CN104409283A (en) * | 2014-12-16 | 2015-03-11 | 新余钢铁集团有限公司 | Electromagnetic contactor |
| CN104538255A (en) * | 2014-12-17 | 2015-04-22 | 贵州天义汽车电器有限公司 | High-voltage direct-current relay |
| KR101943363B1 (en) * | 2015-04-13 | 2019-04-17 | 엘에스산전 주식회사 | Magnetic Switch |
| KR20170009348A (en) * | 2015-07-16 | 2017-01-25 | 엘에스산전 주식회사 | Relay for electronic vehicle including permanent magnet and method of fabricating thereof |
| JP6981732B2 (en) * | 2015-09-28 | 2021-12-17 | 富士通コンポーネント株式会社 | Electromagnetic relay |
| KR20170003638U (en) * | 2016-04-12 | 2017-10-20 | 엘에스산전 주식회사 | Relay apparatus |
| CN105719911B (en) * | 2016-04-29 | 2018-06-01 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay arc blocking structure |
| CN105826131B (en) * | 2016-04-29 | 2018-03-13 | 浙江英洛华新能源科技有限公司 | HVDC relay |
| CN107342187A (en) * | 2017-08-02 | 2017-11-10 | 昆山国力源通新能源科技有限公司 | Arc formula is nonpolarity high-voltage DC contactor |
| CN107331583A (en) * | 2017-08-15 | 2017-11-07 | 昆山国力源通新能源科技有限公司 | Nonpolarity high-voltage DC contactor arc quenching system structure |
-
2018
- 2018-02-02 KR KR1020180013566A patent/KR102032517B1/en active IP Right Grant
- 2018-05-28 CN CN202211428911.5A patent/CN115642054A/en active Pending
- 2018-05-28 CN CN201880083566.1A patent/CN111512409B/en active Active
- 2018-05-28 WO PCT/KR2018/006011 patent/WO2019151581A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190094018A (en) | 2019-08-12 |
| WO2019151581A1 (en) | 2019-08-08 |
| KR102032517B1 (en) | 2019-10-15 |
| CN111512409B (en) | 2022-12-02 |
| CN111512409A (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111512409B (en) | DC relay with permanent magnet housing | |
| CN210182305U (en) | DC relay | |
| JP6240231B2 (en) | electromagnetic switch | |
| US9373467B2 (en) | Electromagnetic contactor | |
| US11101092B2 (en) | Electromagnetic relay | |
| JP5684649B2 (en) | Magnetic contactor | |
| CN210182304U (en) | DC relay | |
| EP3748664A1 (en) | Electromagnetic contactor | |
| US20190304726A1 (en) | Electromagnetic relay | |
| EP3514818B1 (en) | Dc relay having auxilary contact | |
| CN112309775A (en) | Direct current contactor, distribution box, power battery assembly and vehicle | |
| CN110875161B (en) | DC relay | |
| KR102204278B1 (en) | Polarized dc electromagnet device and electromagnetic contactor using same | |
| CN107437481B (en) | Magnetic circuit system for magnetic latching relay | |
| CN219286302U (en) | Relay and new energy automobile | |
| CN211208338U (en) | Relay convenient to monitor | |
| CN211294969U (en) | Magnetic circuit component and static terminal component plug-in mounting structure | |
| CN216528649U (en) | Iron core supporting component of contactor and contactor | |
| CN217562485U (en) | Relay with novel shifting piece and base | |
| KR200200491Y1 (en) | A relay to supply electric power | |
| KR20130029585A (en) | Electromagnetic contactor | |
| CN117672766A (en) | Linear motion electromagnetic mechanism, relay, distribution box and communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |