Electromagnetic contactor including magnetic bodies

Abstract

Disclosed is an electromagnetic contactor. The electromagnetic contactor according to the present invention comprises: a first housing; a second housing coupled to the first housing; a contact part which is accommodated in the first housing and the second housing and in which a fixed contact is disposed; and a magnetic housing that is disposed between the first housing and the contact part and accommodates a plurality of magnetic bodies, wherein the side surface of the magnetic housing may be provided with a plurality of magnetic body insertion holes into which the plurality of magnetic bodies are inserted, and at least one of the plurality of magnetic body insertion holes may be open in the direction going toward the second housing.

Description

Electronic contactor containing a magnetic material

[0001] The present invention relates to an electronic contactor, and more specifically, to an electronic contactor comprising a plurality of magnetic bodies.

[0002] An electromagnetic contactor is a general term for a device that opens or closes a circuit by operating contacts using magnetic attraction. Electromagnetic contactors are widely used to control the operation of any device remotely by controlling magnetic attraction. Such electromagnetic contactors are also referred to as DC relays.

[0003] An electronic contactor is generally configured to include a fixed contact and a movable contact, each energized and connected to an external power source and a load, respectively. The movable contact is connected to a movable core by any member. A fixed core is positioned adjacent to the movable core, and the fixed core is surrounded by a coil.

[0004] When a control current is applied to the coil, the fixed core is magnetized by the magnetic field formed by the coil and applies an attractive force to the movable core. Accordingly, the movable core and the movable contact connected thereto move, causing the movable contact and the fixed contact to come into contact, and as a result, the external power source and load connected to the electronic contactor are each connected to conduct electricity.

[0005] With the recent increase in interest in electric vehicles (EVs) that utilize electricity replacing fossil fuels as a power source, there is a growing number of cases where EVs are equipped with electronic contactors. As electric vehicles are directly linked to the safety of drivers and pedestrians, unlike conventional devices, the reliability of electronic contactors is becoming increasingly important.

[0006] To this end, techniques have been introduced to monitor the operating status of electronic contactors in real time and to control the electronic contactors in real time by reflecting the monitored status.

[0007] Korean Published Patent Document No. 10-2019-0089443 discloses a DC relay equipped with an auxiliary contact. Specifically, it discloses a DC relay equipped with an auxiliary contact to provide a monitoring function for the state of the DC relay while improving arc extinguishing capability.

[0008] However, since the DC relay disclosed in the aforementioned prior art does not provide a specific configuration or structure for implementing an electrical connection between the auxiliary contact and the outside, it does not provide a configuration for electrical connection between the magnet, the auxiliary contact, and the outside, nor a configuration or structure for avoiding interference when a magnet providing arc extinguishing capability is installed.

[0009] The present invention is intended to solve the above-mentioned problems, and the present invention

[0010] The purpose is to provide an electronic contactor for improving arc extinguishing capabilities.

[0011] Another objective of the present invention is to provide an electronic contactor with a structure in which a magnetic body for implementing an arc extinguishing function can be easily installed.

[0012] Another objective of the present invention is to provide an electronic contactor with a structure that can prevent damage to the existing configuration when a magnetic material is installed.

[0013] Another objective of the present invention is to provide an electronic contactor with a structure in which the combined state of the configuration for implementing an arc extinguishing function can be stably maintained.

[0014] Another objective of the present invention is to provide an electronic contactor having a structure in which the current and coupling states of the configuration for implementing an arc extinguishing function and the configuration for current conduction can be stably maintained.

[0015] Another objective of the present invention is to provide an electronic contactor with a structure that can be modified and applied in various forms.

[0016] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art to which the present invention pertains from the description below.

[0017] According to one aspect of the present invention, an electronic contactor is provided comprising: a first housing; a second housing coupled to the first housing; a contact portion accommodated in the first housing and the second housing and having a fixed contact disposed therein; and a magnetic housing disposed between the first housing and the contact portion and accommodating a plurality of magnetic bodies; wherein a plurality of magnetic body insertion holes into which a plurality of magnetic bodies are inserted are provided on the side of the magnetic housing, and at least one of the plurality of magnetic body insertion holes is opened in a direction toward the second housing.

[0018] Here, the magnetic housing comprises a first side facing the second housing, a second side formed opposite the first side, a third side formed between the first side and the second side, and a fourth side formed opposite the third side, and the plurality of magnetic insertion holes comprises a first insertion hole formed on the first side into which one of the plurality of magnetic bodies is inserted; and a second insertion hole formed on the second side into which another of the plurality of magnetic bodies is inserted, and the first insertion hole or the second insertion hole is opened in a direction toward the second housing.

[0019] In addition, the plurality of magnetic bodies are permanent magnets, and the plurality of magnetic bodies are arranged in a Halbach array.

[0020] Additionally, the plurality of magnetic bodies comprises: a first main magnetic body inserted into the first insertion hole; a first amplifying magnetic body positioned in a direction perpendicular to the magnetic direction of the first main magnetic body; a second amplifying magnetic body positioned on the opposite side of the first amplifying magnetic body with the first main magnetic body in between; a second main magnetic body inserted into the second insertion hole; a third amplifying magnetic body positioned in a direction perpendicular to the magnetic direction of the second main magnetic body; and a fourth amplifying magnetic body positioned on the opposite side of the third amplifying magnetic body with the second main magnetic body in between.

[0021] Additionally, the electronic contactor further comprises: a first holder made of a metal material that contacts the third side and is attached to a part of the first main magnetic body and a part of the second main magnetic body; and a second holder made of a metal material that contacts the fourth side and is attached to another part of the first main magnetic body and another part of the second main magnetic body.

[0022] In addition, the first holder and the second holder are made of a magnetic material.

[0023] Additionally, the first holder comprises: a first metal plate portion contacting the third side; a first main coupling portion extending from the first metal plate portion and attached to the outer side of a portion of the first main magnetic body; a first main locking portion extending from the first main coupling portion and fixing the first main magnetic body to the magnetic body housing; a second main coupling portion extending from the first metal plate portion and attached to the outer side of a portion of the second main magnetic body; and a second main locking portion extending from the second main coupling portion and fixing the second main magnetic body, and the second holder comprises: a second metal plate portion contacting the fourth side; a third main coupling portion extending from the second metal plate portion and attached to the outer side of another portion of the first main magnetic body; a third main locking portion extending from the third main coupling portion and fixing the first main magnetic body; and a fourth main coupling portion extending from the second metal plate portion and attached to the outer side of another portion of the second main magnetic body. and includes a fourth main locking part that extends from the fourth main coupling part and fixes the second main magnetic body.

[0024] Additionally, the first main locking part is provided to prevent the first main magnetic body from detaching from the first insertion hole along the direction toward the second housing, and the second main locking part is provided to prevent the second main magnetic body from detaching from the second insertion hole along the direction toward the second housing.

[0025] In addition, the first amplifying magnetic body is coupled to the first main coupling part, the second amplifying magnetic body is coupled to the third main coupling part, the third amplifying magnetic body is coupled to the second main coupling part, and the fourth amplifying magnetic body is coupled to the fourth main coupling part.

[0026] Additionally, the third side comprises a first contact portion to which the first metal plate portion contacts; a first protrusion protruding from the first contact portion; and a second protrusion formed on the opposite side from the first protrusion with the first contact portion in between and protruding from the first contact portion, and the fourth side comprises a second contact portion to which the second metal plate portion contacts; a third protrusion protruding from the second contact portion; and a fourth protrusion formed on the opposite side from the third protrusion with the second contact portion in between and protruding from the second contact portion.

[0027] In addition, the plurality of magnetic bodies have a first inclined surface formed at an angle with respect to the magnetic direction, and the inner wall of the first insertion hole and the inner wall of the second insertion hole have a second inclined surface corresponding to the first inclined surface.

[0028] Additionally, the first side is provided with a third insertion hole into which the first amplifying magnetic body is inserted and a fourth insertion hole into which the second amplifying magnetic body is inserted, and the second side is provided with a fifth insertion hole into which the third amplifying magnetic body is inserted and a sixth insertion hole into which the fourth amplifying magnetic body is inserted.

[0029] In addition, the first main magnetic body and the second main magnetic body include an inclined portion formed at an angle to the magnetic direction of the first main magnetic body and the second main magnetic body, and a detachment prevention portion formed to wrap around the inclined portion is provided on the side of the magnetic body housing.

[0030] In addition, a side of the magnetic housing is provided with a detachment prevention part that prevents the first main magnetic body and the second main magnetic body from detaching from the magnetic housing along the front and rear directions of the magnetic housing.

[0031] Additionally, a first stopper is formed in the third insertion hole to prevent the first amplified magnetic material from entering the interior of the magnetic housing, a second stopper is formed in the fourth insertion hole to prevent the second amplified magnetic material from entering the interior of the magnetic housing, a third stopper is formed in the fifth insertion hole to prevent the third amplified magnetic material from entering the interior of the magnetic housing, and a fourth stopper is formed in the sixth insertion hole to prevent the fourth amplified magnetic material from entering the interior of the magnetic housing.

[0032] Additionally, the magnetic housing further comprises: a first guide portion positioned adjacent to the third insertion hole and guiding the first main locking portion to slide; a second guide portion positioned adjacent to the fifth insertion hole and guiding the second main locking portion to slide; a third guide portion positioned adjacent to the fourth insertion hole and guiding the third main locking portion to slide; and a fourth guide portion positioned adjacent to the sixth insertion hole and guiding the fourth main locking portion to slide.

[0033] According to another aspect of the present invention, a magnetic housing device for an electronic contactor is provided, comprising: a magnetic housing that encloses a portion of a fixed contact and a movable contact of the electronic contactor; and a plurality of magnetic bodies arranged in a Halbach arrangement on the side of the magnetic housing, wherein a plurality of magnetic body insertion holes into which the plurality of magnetic bodies are inserted are provided on the side of the plurality of magnetic bodies, and at least one of the plurality of magnetic body insertion holes is opened in a direction parallel to the side of the magnetic housing.

[0034] According to another aspect of the present invention, a method for assembling an electronic contactor is provided, comprising: a first insertion step of inserting a first main magnetic body and a second main magnetic body into a magnetic body housing along the height direction of the magnetic body housing; a second insertion step of inserting a plurality of amplifying magnetic bodies into the magnetic body housing so as to be positioned on both sides of the first main magnetic body and the second main magnetic body; a fixing step of fixing the first main magnetic body, the second main magnetic body, and the plurality of amplifying magnetic bodies to the magnetic body housing by surrounding the outer sides of the first main magnetic body, the second main magnetic body, and the plurality of amplifying magnetic bodies with a first holder and a second holder; a seating step of seating the magnetic body housing on a contact portion having a plurality of fixed contacts; and a receiving step of receiving the magnetic body housing and the contact portion inside the first housing and the second housing.

[0035] In addition, in the fixing step, the first holder is coupled to a part of the first main magnetic body and a part of the second main magnetic body, and the second holder is coupled to another part of the first main magnetic body and another part of the second main magnetic body.

[0036] According to another aspect of the present invention, a method for assembling a magnetic housing for an electronic contactor is provided, comprising: a step of inserting a plurality of amplifying magnetic bodies into the magnetic housing; a first fixing step of fixing the plurality of amplifying magnetic bodies to the magnetic housing by wrapping a first holder and a second holder around the outer side of the plurality of amplifying magnetic bodies; a step of inserting a first main magnetic body and a second main magnetic body disposed between the plurality of amplifying magnetic bodies by moving them along the height direction of the magnetic housing and inserting them into the magnetic housing; and a second fixing step of fixing the first main magnetic body and the second main magnetic body to the magnetic housing by attaching the first holder and the second holder to the first main magnetic body and the second main magnetic body.

[0037] Additionally, in the first fixing step, the first holder and the second holder are attached to the plurality of amplifying magnetic bodies so as not to overlap with the first insertion hole and the second insertion hole of the magnetic body housing into which the first main magnetic body and the second magnetic body are inserted.

[0038] The electronic contactor according to an embodiment of the present invention can stably implement an arc extinguishing function.

[0039] In an electronic contactor according to an embodiment of the present invention, a magnetic body for implementing an arc extinguishing function can be easily installed.

[0040] The electronic contactor according to an embodiment of the present invention can prevent damage to the existing configuration when a magnetic material is installed.

[0041] The electronic contactor according to an embodiment of the present invention can stably maintain the combined state of the configuration for implementing an arc extinguishing function.

[0042] In an electronic contactor according to an embodiment of the present invention, the current conduction and coupling state of the configuration for implementing an arc extinguishing function and the configuration for conducting current can be stably maintained.

[0043] The electronic contactor according to the embodiment of the present invention can be modified and applied in various forms.

[0044] FIG. 1 is a perspective view showing the external appearance of an electronic contactor according to an embodiment of the present invention.

[0045] FIG. 2 is an exploded perspective view showing an electronic contactor according to an embodiment of the present invention.

[0046] FIG. 3 is a cross-sectional view showing an electronic contactor according to an embodiment of the present invention.

[0047] FIG. 4 is a perspective view showing a magnetic housing of an electronic contactor according to an embodiment of the present invention.

[0048] FIG. 5 is a perspective view showing the first holder and the second holder separated in the magnetic housing of an electronic contactor according to an embodiment of the present invention.

[0049] FIG. 6 is a magnified view of a part of the second holder of an electronic contactor according to an embodiment of the present invention.

[0050] FIG. 7 is a perspective view showing a plurality of magnetic bodies separated in the magnetic body housing of an electronic contactor according to an embodiment of the present invention.

[0051] FIG. 8 is an enlarged view of a part of the magnetic housing of an electronic contactor according to an embodiment of the present invention.

[0052] FIG. 9 is a plan view showing a plurality of magnetic bodies of an electronic contactor according to an embodiment of the present invention.

[0053] FIG. 10 is a plan view showing a magnetic housing of an electronic contactor according to an embodiment of the present invention.

[0054] FIG. 11 is an enlarged view of a part of the first main magnetic body of an electronic contactor according to an embodiment of the present invention mounted in a magnetic body housing.

[0055] FIG. 12 is a flowchart illustrating an electronic contactor assembly method according to an embodiment of the present invention.

[0056] FIG. 13 is a perspective view showing the appearance of a magnetic housing device for an electronic contactor according to another embodiment of the present invention before assembly.

[0057] FIG. 14 is a perspective view showing a plurality of amplifying magnetic bodies inserted into a magnetic housing in a magnetic housing device for an electronic contactor according to another embodiment of the present invention.

[0058] FIG. 15 is a perspective view showing a first holder and a second holder fixing a plurality of amplifying magnetic bodies in a magnetic housing device for an electronic contactor according to another embodiment of the present invention.

[0059] FIG. 16 is a perspective view showing a first main magnetic body and a second main magnetic body inserted into a magnetic body housing in a magnetic body housing device for an electronic contactor according to another embodiment of the present invention.

[0060] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the description in the drawings have been omitted, and the same reference numerals have been used throughout the specification for identical or similar components.

[0061] The words and terms used in this specification and claims are not limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention in accordance with the principles by which the inventor defines terms and concepts to best describe his invention.

[0062] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to preferred embodiments of the present invention and do not represent all technical concepts of the present invention; thus, various equivalents and modifications that may replace such configurations may exist at the time of filing the present invention.

[0063] In this specification, terms such as “comprising” or “having” are intended to describe the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should not be understood as precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0064] The statement that a component is "in front," "rear," "upper," or "lower" of another component includes, unless there are special circumstances, not only being positioned "in front," "rear," "upper," or "lower" in direct contact with the other component, but also cases where another component is positioned in between. Furthermore, the statement that a component is "connected" to another component includes, unless there are special circumstances, not only being directly connected to each other, but also being indirectly connected to each other.

[0065] Hereinafter, an electronic contactor according to an embodiment of the present invention will be described with reference to the drawings.

[0066] FIG. 1 is a perspective view showing the exterior of an electronic contactor according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing an electronic contactor according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view showing an electronic contactor according to an embodiment of the present invention.

[0067] Referring to FIGS. 1 to 3, an electronic contactor (100) according to an embodiment of the present invention is illustrated.

[0068] The electronic contactor (100) is connected to an external power source and a load, respectively, so as to be electrically energized. The electronic contactor (100) can selectively energize the external power source and the load.

[0069] Specifically, some components of the electronic contactor (100) are electrically connected to an external power source, and other components of the electronic contactor (100) are electrically connected to an external load.

[0070] Some of the above components and other components are electrically connected to or separated from each other by an applied control power source. Accordingly, external power sources and loads may be electrically connected to or disconnected from each other.

[0071] The electronic contactor (100) according to an embodiment of the present invention can be remotely controlled. Accordingly, the electronic contactor (100) can connect to or cut off external power and loads so that power can be supplied even when an operator is not located nearby.

[0072] The process of the electronic contactor (100) connecting or disconnecting an external power source and load to enable power flow is a well-known technique, so a detailed description will be omitted.

[0073] Additionally, the electronic contactor (100) according to an embodiment of the present invention may include another configuration for monitoring the contact status of the part configuration and the other configuration.

[0074] The other configuration above may monitor any information related to the contact status of the part configuration and the other configuration. For example, the other configuration may be configured to monitor information such as current or voltage values ​​of power supplied to the part configuration and the other configuration.

[0075] As illustrated in FIGS. 1 to 3, a DC electronic contactor (100) according to an embodiment of the present invention may include a first housing (110), a second housing (120), a magnetic housing (140), and a contact portion (150).

[0076] The first housing (110) is formed to accommodate a magnetic housing (140). The first housing (110) may be formed from an electrically insulating material and a thermally insulating material. Additionally, the first housing (110) may be formed from a high-rigidity material.

[0077] And, the first housing (110) is combined with the second housing (120). And, the first housing (110) is provided with a first cover hole (111) through which a first fixed contact (131) passes and a second cover hole (112) through which a second fixed contact (132) passes.

[0078] And, a portion of the first fixed contact (131) is exposed to the outside of the cover (110) through the first cover hole (111). And, a portion of the second fixed contact (132) is exposed to the outside of the cover (110) through the second cover hole (112).

[0079] The second housing (120) is combined with the first housing (140). The second housing (120) may be formed from an electrically insulating material and a thermally insulating material. Additionally, the second housing (120) may be formed from a high-rigidity material. In one embodiment, the second housing (120) may be formed from the same material as the first housing (140).

[0080] The magnetic housing (140) is formed in a shape that encloses a part of the contact portion (150). Additionally, the magnetic housing (140) can be combined with the second housing (120). At this time, when the magnetic housing (140) and the second housing (120) are combined, the contact portion (150) is accommodated between the magnetic housing (140) and the second housing (120).

[0081] Additionally, the magnetic housing (140) may be formed from an electrical insulating material and a thermal insulating material. Accordingly, the unauthorized conduction of current applied to the contact portion (150) is prevented, and damage caused by an arc that may occur during the operation of the contact portion (150) is prevented. Furthermore, the magnetic housing (140) may be referred to as a magnetic housing device.

[0082] Additionally, the magnetic housing (140) may be formed from a high-rigidity material. Furthermore, according to an embodiment of the present invention, the magnetic housing (140) may be formed from a synthetic resin material such as reinforced plastic.

[0083] Additionally, the magnetic housing (140) may have a lower side (140a), an upper side (140b), a first side (142), and a second side (143). At this time, the lower side (140a) is open. The upper side (140b) is formed on the opposite side of the lower side (140a). Additionally, the first side (142) is formed between the lower side (140a) and the upper side (140b). Additionally, the first side (142) faces the second housing (120). The second side (143) is formed on the opposite side of the first side (142). Additionally, the first side (142) and the second side (143) may be referred to as the sides of the magnetic housing (140).

[0084] Additionally, a plurality of magnetic bodies (not shown) may be provided in the magnetic housing (140). The plurality of magnetic bodies may form a magnetic field inside the magnetic housing (140). The magnetic field produced by the magnetic bodies may induce and extinguish an arc generated inside the contact portion (150).

[0085] The above magnetic housing (140) will be described in detail later with reference to the drawings.

[0086] The contact portion (150) can be accommodated in the first housing (140). Some components of the contact portion (150) are exposed to the outside of the first housing (110), and other components of the contact portion (150) are accommodated inside the first housing (110). At this time, the other components of the contact portion (150) can be accommodated so as to be vertically movable inside the first housing (110).

[0087] And, the contact portion (150) is coupled with the second housing (120). Another configuration of the contact portion (150) can be movably accommodated inside the second housing (120). And, the contact portion (150) includes an arc chamber (151), fixed contacts (131, 132), auxiliary contacts (133, 134), and a movable contact (155).

[0088] The arc chamber (151) is formed in a vacuum atmosphere. Additionally, the arc chamber (151) can be sealed by including hydrogen.

[0089] The fixed contacts (131, 132) are configured such that the contact portion (150) is electrically connected to an external power source and load. The fixed contacts (131, 132) are formed from an electrically conductive material. The fixed contacts (131, 132) are penetrated through the contact through-holes (140c, 140d) and may be exposed at least partially to the outside of the magnetic housing (140). The remaining portion of the fixed contacts (131, 132) is received in the magnetic housing (140).

[0090] The fixed contacts (131, 132) are in contact with or separated from the movable contacts (155). Accordingly, the fixed contacts (131, 132) may be electrically connected to or disconnected from the movable contacts. As the name suggests, the fixed contacts (131, 132) are fixedly coupled and do not move. Therefore, it will be understood that contact and separation between the fixed contacts (131, 132) and the movable contacts (155) are achieved by moving the movable contacts.

[0091] Additionally, the fixed contacts (131, 132) may include a first fixed contact (131) and a second fixed contact (132). The first fixed contact (131) passes through the first contact through-hole (140c) and is exposed to the outside of the magnetic housing (140), and is electrically connected to one of the external power source and load. The second fixed contact (132) passes through the second contact through-hole (140d) and is exposed to the outside of the magnetic housing (140), and is electrically connected to one of the external power source and load.

[0092] Also, the first fixed contact (131) and the second fixed contact (132) are electrically connected to each other or the electrical connection is cut off depending on the movement of the movable contact (155). At this time, during the process of the fixed contact (131, 132) and the movable contact (155) coming into contact and then separating, an arc may occur between the fixed contact (131, 132) and the movable contact (155).

[0093] The auxiliary contacts (133, 134) are configured such that the contact portion (150) is electrically connected to an external power source. The auxiliary contacts (133, 134) are formed from an electrically conductive material. The auxiliary contacts (133, 134) may be exposed at least partially to the outside of the magnetic housing (140). The remaining portion of the auxiliary contacts (133, 134) is housed in the magnetic housing (140).

[0094] Additionally, the auxiliary contacts (133, 134) may include a first auxiliary contact (133) and a second auxiliary contact (134). In this case, the first auxiliary contact (133) and the second auxiliary contact (134) may be positioned between the first fixed contact (131) and the second fixed contact (132).

[0095] Additionally, a DC electronic contactor (100) according to an embodiment of the present invention may include terminals (321, 322) connected to auxiliary contacts (133, 134). The terminals (321, 322) include a first terminal (321) connected to a first auxiliary contact (133) and a second terminal (322) connected to a second auxiliary contact (134).

[0096] And, the terminals (321, 322) are electrically connected to the connecting parts (311, 312) through the support part (145) formed on the third side (143).

[0097] FIG. 4 is a perspective view showing a magnetic housing of an electronic contactor according to an embodiment of the present invention, FIG. 5 is a perspective view showing a first holder and a second holder separated from the magnetic housing of an electronic contactor according to an embodiment of the present invention, and FIG. 6 is a drawing focusing on a part of the second holder of an electronic contactor according to an embodiment of the present invention.

[0098] Referring to FIGS. 4 to 6, the magnetic housing (140) has a first side (142), a second side (143), a third side (145), and a fourth side (146).

[0099] A second side (143) is formed on the opposite side of the first side (142). A third side (145) is formed between the first side (142) and the second side (143). A fourth side (146) is formed between the first side (142) and the second side (143) and on the opposite side of the third side (145).

[0100] A plurality of magnetic bodies (211, 212, 213, 221, 222, 223) may be permanent magnets. And, the plurality of magnetic bodies (211, 212, 213, 221, 222, 223) include a first main magnetic body (211), a first amplifying magnetic body (212), a second amplifying magnetic body (213), a second main magnetic body (221), a third amplifying magnetic body (222), and a fourth amplifying magnetic body (223), and is formed as a Halbach array.

[0101] The first main magnetic body (211), the first amplifying magnetic body (212), and the second amplifying magnetic body (213) are mounted on the first side (142). The first amplifying magnetic body (212) and the second amplifying magnetic body (213) increase the magnetism of either the N pole or the S pole of the first main magnetic body (211).

[0102] And, the second main magnetic body (221), the third amplifying magnetic body (222), and the fourth amplifying magnetic body (223) are mounted on the second side (142). And, the third amplifying magnetic body (222) and the fourth amplifying magnetic body (223) increase the magnetism of either the N pole or the S pole of the second main magnetic body (211).

[0103] At this time, the DC contactor according to an embodiment of the present invention includes a first holder (230) and a second holder (240) that fix a plurality of magnetic bodies (211, 212, 213, 221, 222, 223) to a magnetic body housing (140).

[0104] The first holder (230) is in contact with the third side (145). The first holder (230) is made of a metal material. At this time, the first holder (230) is made of a magnetic material. Specifically, the first holder (230) is made of a ferromagnetic material. However, the first holder (230) is not limited to being made of a metal magnetic material, but can be made of various materials having a magnetic material.

[0105] And, the first holder (230) is attached to a part of the first main magnetic body (211) and a part of the second main magnetic body (221) by the magnetic force of the first main magnetic body (211) and the magnetic force of the second main magnetic body (221).

[0106] And, the first holder (230) includes a first metal plate portion (231), a first main coupling portion (232), a first main locking portion (232a), a second main coupling portion (233) and a second main locking portion (233a).

[0107] The first metal plate portion (231) is in contact with the third side (145). The first main coupling portion (232) extends from the first metal plate portion (231) and is attached to the outer side of a portion of the first main magnetic body (211). The first main locking portion (232a) extends from the first main coupling portion (232) and secures the first main magnetic body (211) to the magnetic body housing (140).

[0108] And, the second main coupling part (233) extends from the first metal plate part (231). At this time, the second main coupling part (233) is formed on the opposite side of the first main coupling part (232) with the first metal plate part (231) in between. And, the second main coupling part (233) is attached to the outer side of a part of the second main magnetic body (221). And, the second main locking part (233a) extends from the second main coupling part (233) and fixes the second main magnetic body (221) to the magnetic body housing (140).

[0109] And, the second holder (240) is attached to another part of the first main magnetic body (211) and another part of the second main magnetic body (221) by the magnetic force of the first main magnetic body (211) and the magnetic force of the second main magnetic body (221). And, the second holder (240) includes a second metal plate part (241), a third main coupling part (242), a third main catch part (242a), a fourth main coupling part (243), and a fourth main catch part (243a).

[0110] The second metal plate portion (241) is in contact with the fourth side (146). Then, the third main coupling portion (242) extends from the second metal plate portion (241) and is attached to the outer side of another part of the first main magnetic body (211). Then, the third main locking portion (242a) extends from the third main coupling portion (242) and secures the first main magnetic body (211) to the magnetic body housing (140).

[0111] And, the fourth main coupling part (243) extends from the second metal plate part (241). At this time, the fourth main coupling part (243) is formed on the opposite side of the third main coupling part (242) with the second metal plate part (241) in between. And, the fourth main coupling part (243) is attached to the outer side of another part of the second main magnetic body (221). And, the fourth main locking part (243a) extends from the fourth main coupling part (243) and fixes the second main magnetic body (221) to the magnetic body housing (140).

[0112] Then, the first amplifying magnetic body (212) is attached to the first main coupling part (232). Also, the first amplifying magnetic body (212) is isolated from the outside of the magnetic body housing (140) by the first main coupling part (232). Then, the second amplifying magnetic body (213) is attached to the third main coupling part (242). Also, the second amplifying magnetic body (213) is isolated from the outside of the magnetic body housing (140) by the third main coupling part (232). Also, the third amplifying magnetic body (222) is attached to the second main coupling part (233). Also, the third amplifying magnetic body (222) is isolated from the outside of the magnetic body housing (140) by the second main coupling part (233). Also, the fourth amplifying magnetic body (223) is attached to the fourth main coupling part (243). And, the fourth amplifying magnetic body (223) is isolated from the outside of the magnetic body housing (140) by the fourth main coupling part (243).

[0113] In this way, the first holder (230) and the second holder (240) stably fix a plurality of magnetic bodies to the magnetic housing (140), thereby preventing the plurality of magnetic bodies from detaching from the magnetic housing (140) even if the DC contactor receives an external shock, so that the arc extinguishing function by the plurality of magnetic bodies can be stably secured.

[0114] Additionally, according to an embodiment of the present invention, the third side (145) includes a first contact portion (145b), a first protrusion (145a), and a second protrusion (145c).

[0115] The first contact portion (145b) is in contact with the first metal plate portion (231). The first protrusion (145a) protrudes from the first contact portion (145b). The second protrusion (145c) protrudes from the first contact portion (145b) and is formed on the opposite side from the first protrusion (145a), with the first contact portion (145b) in between.

[0116] And, the first metal plate portion (231) is caught between the first protrusion (145a) and the second protrusion (145c), thereby stably maintaining the state in which the first metal plate portion (231) is in contact with the third side (145).

[0117] Additionally, according to an embodiment of the present invention, the fourth side (145) includes a second contact portion (not shown), a third protrusion (not shown), and a fourth protrusion (not shown). Since the second contact portion is similar to the first contact portion (145b), the third protrusion is similar to the first protrusion (145a), and the fourth protrusion is similar to the second protrusion (145c), the description above is replaced.

[0118] And, as the first holder (230) and the second holder (240) are positioned around the third side (145) and the fourth side (146), interference with the support member (145) formed on the second side (143) is prevented.

[0119] FIG. 7 is a perspective view showing a plurality of magnetic bodies separated in a magnetic housing of an electronic contactor according to an embodiment of the present invention, FIG. 8 is an enlarged view of a part of the magnetic housing of an electronic contactor according to an embodiment of the present invention, FIG. 9 is a plan view showing a plurality of magnetic bodies of an electronic contactor according to an embodiment of the present invention, FIG. 10 is a plan view showing a magnetic housing of an electronic contactor according to an embodiment of the present invention, and FIG. 11 is an enlarged view of a part showing the first main magnetic body of an electronic contactor according to an embodiment of the present invention mounted in the magnetic housing.

[0120] First, as shown in FIG. 7, the first main magnetic body (211) is inserted into the first insertion hole (142a). At this time, the first main magnetic body (211) is inserted into the first insertion hole (142a) while sliding along the height direction of the magnetic body housing (140).

[0121] Then, the second main magnetic body (221) is inserted into the second insertion hole (143a). At this time, the second main magnetic body (221) is inserted into the second insertion hole (143a) while sliding along the height direction of the magnetic body housing (140). Also, the first insertion hole (142a) and the second insertion hole (143a) may be referred to as a plurality of magnetic body insertion holes.

[0122] Then, on the first side (142), a third insertion hole (142b) and a fourth insertion hole (142c) are formed spaced apart from the first insertion hole (142a). Then, the first insertion hole (142a) is formed between the third insertion hole (142b) and the fourth insertion hole (142c). Then, a first amplifying magnetic body (212) is inserted into the third insertion hole (142b). Then, a second amplifying magnetic body (213) is inserted into the fourth insertion hole (142c).

[0123] At this time, the first amplifying magnetic body (212) is inserted into the third insertion hole (142b) along the direction facing the first side (142). Then, the second amplifying magnetic body (213) is inserted into the third insertion hole (142b) along the direction facing the first side (142).

[0124] Then, on the second side (143), a fifth insertion hole (143b) and a sixth insertion hole (143c) are formed spaced apart from the second insertion hole (143a). Then, the second insertion hole (143a) is formed between the fifth insertion hole (143b) and the sixth insertion hole (143c). Then, a third amplifying magnetic body (222) is inserted into the fifth insertion hole (143b). Then, a fourth amplifying magnetic body (223) is inserted into the sixth insertion hole (143c).

[0125] At this time, the third amplifying magnetic body (222) is inserted into the fifth insertion hole (143b) along the direction facing the second side (143). Then, the fourth amplifying magnetic body (223) is inserted into the sixth insertion hole (143b) along the direction facing the second side (143).

[0126] Additionally, a first stopper (142f) is formed in the third insertion hole (142b) to prevent the first amplified magnetic body (212) from entering the interior of the magnetic body housing (140). And, a second stopper (142g) is formed in the fourth insertion hole (142c) to prevent the second amplified magnetic body (213) from entering the interior of the magnetic body housing (140). In addition, a third stopper (not shown) and a fourth stopper (not shown), similar to the first stopper (142f) or the second stopper (142g), may also be provided in the fifth insertion hole (143b) and the sixth insertion hole (143c).

[0127] And, when the plurality of magnetic bodies are mounted in the magnetic body housing (140), they can be arranged in a Halbach arrangement as shown in FIG. 9. The first main magnetic body (211) and the second main magnetic body (212) face each other with different polarities. For example, if the polarity of the surface of the first main magnetic body (211) facing the second main magnetic body (212) is the N pole, then the polarity of the surface of the second main magnetic body (221) facing the first main magnetic body (212) is the S pole.

[0128] And, the polarity of the surface of the first amplifying magnetic body (212) facing the first main magnetic body (211) is the same as the polarity of the surface of the first main magnetic body (211) facing the second main magnetic body (221). For example, if the polarity of the surface of the first main magnetic body (211) facing the second main magnetic body (221) is the N pole, then the polarity of the surface of the first amplifying magnetic body (212) facing the first main magnetic body (211) is the N pole. And, the polarity of the surface of the second amplifying magnetic body (213) facing the first main magnetic body (211) is the same as the polarity of the surface of the first main magnetic body (211) facing the second main magnetic body (221). For example, if the polarity of the surface of the first main magnetic body (211) facing the second main magnetic body (221) is N pole, the polarity of the surface of the second amplifying magnetic body (213) facing the first main magnetic body (211) is N pole.

[0129] And, the polarity of the surface of the third amplifying magnetic body (222) facing the second main magnetic body (221) is the same as the polarity of the surface of the second main magnetic body (221) facing the first main magnetic body (211). For example, if the polarity of the surface of the second main magnetic body (221) facing the first main magnetic body (211) is S pole, then the polarity of the surface of the third amplifying magnetic body (222) facing the second main magnetic body (221) is S pole. And, the polarity of the surface of the fourth amplifying magnetic body (223) facing the second main magnetic body (221) is the same as the polarity of the surface of the second main magnetic body (221) facing the first main magnetic body (211). For example, if the polarity of the surface of the second main magnetic body (221) facing the first main magnetic body (211) is S pole, the polarity of the surface of the fourth amplifying magnetic body (223) facing the second main magnetic body (221) is S pole.

[0130] At this time, as illustrated in FIG. 8, a first main inclined surface (142ab) is formed in the first insertion hole (142a) at an angle from the first support surface (142aa) that supports the first main magnetic body (211). Then, the end (211a) of the first main magnetic body (211) is formed to correspond to the first main inclined surface (142ab). Accordingly, when the first main magnetic body (211) is inserted into the first insertion hole (142a), there is no need to check the polarity of the first main magnetic body (211), thereby improving the assembly speed of the first main magnetic body (211).

[0131] Additionally, a second main inclined surface (not shown) is formed in the second insertion hole (143a) at an angle from a second support surface (not shown) that supports the second main magnetic body (221).

[0132] Since the second support surface is similar to the first support surface (142aa) and the second main inclined surface is similar to the first main inclined surface (142ab), the description above is replaced. Additionally, the end (221a) of the second main magnetic body (221) is formed to correspond to the second main inclined surface. At this time, since the position of the end (221a) of the second main magnetic body (221) is the same as the position of the end (211a) of the first main magnetic body (211), there is no need to check the polarity of the second main magnetic body (221) when the second main magnetic body (221) is inserted into the second insertion hole (143a), thereby improving the assembly speed of the second main magnetic body (221).

[0133] Additionally, a third main inclined surface (142bb) is formed in the third insertion hole (142b) at an angle from the third support surface (142ba) that supports the first amplifying magnetic body (212). Furthermore, the end (212a) of the first amplifying magnetic body (212) is formed to correspond to the third main inclined surface (142bb). Accordingly, when the first amplifying magnetic body (212) is inserted into the third insertion hole (142b), there is no need to check the polarity of the first amplifying magnetic body (212), thereby improving the assembly speed of the first amplifying magnetic body (212).

[0134] Additionally, a fourth main inclined surface (142cb) is formed in the fourth insertion hole (142c), which is formed at an angle from the fourth support surface (142ca) that supports the second amplifying magnetic body (213). Furthermore, the end (213a) of the second amplifying magnetic body (213) is formed to correspond to the fourth main inclined surface (142cb). Accordingly, when the second amplifying magnetic body (213) is inserted into the fourth insertion hole (14cb), there is no need to check the polarity of the second amplifying magnetic body (213), thereby improving the assembly speed of the second amplifying magnetic body (213).

[0135] Additionally, in the fifth insertion hole (143b), a fifth main inclined surface (not shown) corresponding to the end (222a) of the third amplifying magnetic body (222) is formed, and in the sixth insertion hole (143c), a sixth main inclined surface (not shown) corresponding to the end (223a) of the fourth amplifying magnetic body (223) is formed, and the description of the fifth main inclined surface and the sixth main inclined surface is replaced with the description of the third main inclined surface and the fourth main inclined surface.

[0136] Additionally, as illustrated in FIG. 9, the first main magnetic body (211) includes inclined portions (211d, 211i, 211h) formed at an angle to the magnetic direction of the first main magnetic body (211). The inclined portions (211d, 211i, 211h) of the first main magnetic body (211) are formed at one end of the first main magnetic body (211). The inclined portions of the first main magnetic body (211) are also formed at the other end, which is formed on the opposite side of the one end of the first main magnetic body (211). Furthermore, the second main magnetic body (211) also includes an inclined portion identical or similar to that of the first main magnetic body (211).

[0137] And, the inclined portion (211d, 211i, 211h) has a slide surface (211d) facing a direction perpendicular to the magnetic direction, and a first inclined surface (211i, 211h) formed at an angle to the slide surface (211d).

[0138] The first inclined surface (211i, 211h) includes a first surface (211i) formed at an angle to the slide surface (211d) and a second surface (211h) formed at an angle to the slide surface (211d) and formed on the opposite side of the first surface (211i).

[0139] Also, as illustrated in FIG. 11, the side of the magnetic housing (140) is provided with a detachment prevention part (142ea, 142ec, 142ea) to prevent the first main magnetic body (211) and the second main magnetic body (221) from detaching from the magnetic housing (140) along the front and rear directions of the magnetic housing (140). Here, the side of the magnetic housing (140) may refer to the first side (142) and the second side (143). Additionally, the front and rear directions of the magnetic housing (140) may be the same as the magnetic direction of the first main magnetic body (211) and the second main magnetic body (221).

[0140] And, the anti-detachment portion (142ea, 142ec, 142ea) is formed on the inner wall of the first insertion hole (142a) and includes a first contact surface (142ea) corresponding to the slide surface (211d), a second contact surface (142ec) corresponding to the first surface (211i), and a third contact surface (142ea) corresponding to the second surface (211h).

[0141] And, the second contact surface (142ec) and the third contact surface (142ea) surround the end of the first main magnetic body (211), thereby guiding the first main magnetic body (211) to be inserted into the first insertion hole (142a) and preventing the first main magnetic body (211) from being removed from the first insertion hole (142a).

[0142] And, since the other end formed on the opposite side of the first main magnetic body (211), the first end of the second main magnetic body (221), and the other end of the second main magnetic body (221) are similar to the first main magnetic body (211), the description above will be used as a substitute.

[0143] Additionally, according to various embodiments of the present invention, the anti-detachment portion is not limited to being composed of a first contact surface (142ea), a second contact surface (142ec), and a third contact surface (142ea), but may be formed to surround both ends of the first main magnetic body (211) and both ends of the second main magnetic body (221). Accordingly, even if the first main magnetic body (211) and the second main magnetic body (221) do not include an inclined portion, the first main magnetic body (211) and the second main magnetic body (221) are prevented from detaching from the magnetic body housing (140) along the front and rear directions of the magnetic body housing (140).

[0144] FIG. 12 is a flowchart illustrating an electronic contactor assembly method according to an embodiment of the present invention.

[0145] As illustrated in FIG. 12, the electronic contactor assembly method according to an embodiment of the present invention includes a first insertion step (S10), a second insertion step (S20), a fixing step (S30), a seating step (S40), and a receiving step (S50).

[0146] In the first insertion step (S10), the first main magnetic body and the second main magnetic body are inserted into the magnetic body housing along the height direction of the magnetic body housing.

[0147] In the second insertion step (S20), a plurality of amplifying magnetic bodies are inserted into the magnetic body housing so as to be positioned on both sides of the first main magnetic body and the second main magnetic body.

[0148] In the fixing step (S30), the first holder and the second holder surround the outer sides of the first main magnetic body, the second main magnetic body, and the plurality of amplifying magnetic bodies, thereby fixing the first main magnetic body, the second main magnetic body, and the plurality of amplifying magnetic bodies to the magnetic body housing.

[0149] In the mounting step (S40), the magnetic housing is mounted on a contact portion equipped with a plurality of fixed contacts.

[0150] In the receiving step (S50), the magnetic housing and the contact portion are received inside the first housing and the second housing.

[0151] At this time, in the fixing step (S30), the first holder is coupled to a part of the first main magnetic body and a part of the second main magnetic body, and the second holder is coupled to another part of the first main magnetic body and another part of the second main magnetic body.

[0152] Accordingly, the first main magnetic body and the second main magnetic body can be stably fixed by the second holder as well as the first holder.

[0153] FIG. 13 is a perspective view showing the appearance of a magnetic housing device for an electronic contactor according to another embodiment of the present invention before assembly, FIG. 14 is a perspective view showing a plurality of amplifying magnetic bodies inserted into a magnetic housing device for an electronic contactor according to another embodiment of the present invention, FIG. 15 is a perspective view showing a first holder and a second holder fixing a plurality of amplifying magnetic bodies in a magnetic housing device for an electronic contactor according to another embodiment of the present invention, FIG. 16 is a perspective view showing a first main magnetic body and a second main magnetic body inserted into a magnetic housing device for an electronic contactor according to another embodiment of the present invention.

[0154] Referring to FIGS. 13 to 16, a method for assembling a magnetic housing for an electronic contactor according to another embodiment of the present invention includes an amplifying magnetic body insertion step, a first fixing step, a main magnetic body insertion step, and a second fixing step.

[0155] The above step of inserting amplified magnetic bodies involves inserting a plurality of amplified magnetic bodies (212, 213, 222, 223) into a magnetic body housing (140), as illustrated in FIGS. 13 and 14. According to another embodiment of the present invention, unlike the above embodiment, a plurality of amplified magnetic bodies (212, 213, 222, 223) are inserted into the magnetic body housing (140) before the first main magnetic body (211) and the second main magnetic body (221). Accordingly, according to another embodiment of the present invention, in the process of inserting a plurality of amplifying magnetic bodies (212, 213, 222, 223) into a magnetic body housing (140), the polarity of the plurality of amplifying magnetic bodies (212, 213, 222, 223) is not affected by magnetic force directed opposite to the polarity of the first main magnetic body (211) and the second main magnetic body (222), thereby improving the convenience of assembling the plurality of amplifying magnetic bodies (212, 213, 222, 223).

[0156] The first fixing step, as shown in FIG. 15, involves wrapping the first holder (230) and the second holder (240) around the outer side of the plurality of amplifying magnetic bodies (212, 213, 222, 223) to fix the plurality of amplifying magnetic bodies (212, 213, 222, 223) to the magnetic body housing (140).

[0157] In the first fixing step above, the first holder (230) and the second holder (240) are attached to a plurality of amplifying magnetic bodies (212, 213, 222, 223) so as not to overlap with the first insertion hole (142a) and the second insertion hole (143a) of the magnetic body housing (140) into which the first main magnetic body (211) and the second magnetic body (221) are inserted.

[0158] Specifically, in the first fixing step, the first holder (230) and the second holder (240) block the outside of a plurality of amplified magnetic bodies (212, 213, 222, 223) without being in close contact with the magnetic housing (140). That is, the first holder (230) and the second holder (240) temporarily contact the magnetic housing (140) so as not to interfere with the first insertion hole (142a) and the second insertion hole (143a) into which the first main magnetic body (211) and the second main magnetic body (221) are inserted.

[0159] Accordingly, the first main locking part (232a) and the second main locking part (233a) of the first holder (230) and the third main locking part (242a) and the fourth main locking part (243a) of the second holder (240) do not interfere with the first insertion hole (142a) and the second insertion hole (143a), so that the first main magnetic body (211) and the second main magnetic body (221) are smoothly inserted into the first insertion hole (142a) and the second insertion hole (143a).

[0160] At this time, as shown in FIG. 13, the magnetic housing (140) includes a first guide part (142m), a second guide part (142o), a third guide part (143n), and a fourth guide part (143p).

[0161] The first guide portion (142m) is positioned adjacent to the third insertion hole (142b). And, when the first holder (230) moves in close proximity to the magnetic housing (140), the first guide portion (142m) guides the first main locking portion (232a) to slide.

[0162] The second guide portion (142o) is positioned adjacent to the fifth insertion hole (143b). And, when the first holder (230) moves in close proximity to the magnetic housing (140), the second guide portion (142o) guides the second main locking portion (233a) to slide.

[0163] Additionally, the first guide section (142m) and the second guide section (142o) are formed parallel to each other. Accordingly, when the first holder (230) moves in close proximity to the magnetic housing (140), the first guide section (142m) and the second guide section (142o) guide each of the first main catch section (232a) and the second main catch section (233a) while supporting them equally.

[0164] The third guide portion (142m) is positioned adjacent to the third insertion hole (142c). And, when the second holder (240) moves in close proximity to the magnetic housing (140), the third guide portion (142m) guides the third main locking portion (242a) to slide.

[0165] The fourth guide portion (142p) is positioned adjacent to the sixth insertion hole (143c). And, when the second holder (240) moves in close proximity to the magnetic housing (140), the fourth guide portion (142p) guides the fourth main locking portion (243a) to slide.

[0166] Additionally, the third guide section (142m) and the fourth guide section (142p) are formed parallel to each other. Accordingly, when the second holder (240) moves in close proximity to the magnetic housing (140), the third guide section (142m) and the fourth guide section (142p) guide each of the third main catch section (242a) and the fourth main catch section (243a) while supporting them equally.

[0167] As shown in FIG. 16, the main magnetic body insertion step involves moving the first main magnetic body (211) and the second main magnetic body (221), which are positioned between a plurality of amplified magnetic bodies (212, 213, 222, 223), along the height direction of the magnetic body housing (140) and inserting them into the magnetic body housing (140).

[0168] Specifically, the first main magnetic body (211) is inserted in a direction perpendicular to the first insertion hole (142a) between the first amplifying magnetic body (212) and the second amplifying magnetic body (213). At this time, the first amplifying magnetic body (212) and the second amplifying magnetic body (213) are maintained attached to the first holder (230) and the second holder (240) by magnetic force, thereby preventing the first amplifying magnetic body (212) and the second amplifying magnetic body (213) from detaching from the magnetic body housing (140) by the magnetic force of the first main magnetic body (211).

[0169] Likewise, the second main magnetic body (221) is inserted in a direction perpendicular to the second insertion hole (143a) between the third amplifying magnetic body (222) and the fourth amplifying magnetic body (223). At this time, as the third amplifying magnetic body (222) and the fourth amplifying magnetic body (223) remain attached to the first holder (230) and the second holder (240) by magnetic force, the third amplifying magnetic body (222) and the fourth amplifying magnetic body (223) are prevented from detaching from the magnetic body housing (140) by the magnetic force of the first main magnetic body (211).

[0170] In the second fixing step, as shown in FIG. 4, the first holder (230) and the second holder (240) are attached to the first main magnetic body (211) and the second main magnetic body (221) to fix the first main magnetic body (211) and the second main magnetic body (221) to the magnetic body housing (140).

[0171] Accordingly, the assembly convenience of a magnetic housing device for an electronic contactor is improved through the method for assembling a magnetic housing for an electronic contactor according to another embodiment of the present invention.

[0172] Although embodiments of the present invention have been described, the spirit of the present invention is not limited by the embodiments presented in this specification. Those skilled in the art who understand the spirit of the present invention may easily propose other embodiments within the scope of the same spirit by adding, changing, deleting, or adding components, and such are also to be considered to fall within the scope of the spirit of the present invention.

Claims

1. First housing; A second housing coupled to the first housing above; A contact portion accommodated in the first housing and the second housing, with a fixed contact disposed therein; and It includes a magnetic housing disposed between the first housing and the contact portion and accommodating a plurality of magnetic bodies, and The side of the above magnetic housing is provided with a plurality of magnetic insertion holes into which a plurality of magnetic bodies are inserted, and An electronic contactor, wherein at least one of the plurality of magnetic material insertion holes is opened in a direction toward the second housing.

2. In Paragraph 1; The magnetic housing comprises a first side facing the second housing, a second side formed on the opposite side of the first side, a third side formed between the first side and the second side, and a fourth side formed on the opposite side of the third side. The above plurality of magnetic material insertion holes are, A first insertion hole formed on the first side and into which one of the plurality of magnetic bodies is inserted; and It includes a second insertion hole formed on the second side and into which another of the plurality of magnetic bodies is inserted, An electronic contactor in which the first insertion hole or the second insertion hole is opened in a direction toward the second housing.

3. In Paragraph 2, The above plurality of magnetic bodies are permanent magnets, and The above plurality of magnetic bodies are arranged in a Halbach array, forming an electronic contactor.

4. In Paragraph 3, The above plurality of magnetic bodies are, A first main magnetic body inserted into the first insertion hole; A first amplifying magnetic body positioned in a direction perpendicular to the magnetic direction of the first main magnetic body; A second amplifying magnetic body positioned on the opposite side of the first amplifying magnetic body with the first main magnetic body in between; A second main magnetic body inserted into the second insertion hole; A third amplifying magnetic body positioned in a direction perpendicular to the magnetic direction of the second main magnetic body; and An electronic contactor comprising a fourth amplifying magnetic body positioned on the opposite side of the third amplifying magnetic body with the second main magnetic body in between.

5. In Paragraph 4, A first holder made of a metal material that contacts the third side and is attached to a part of the first main magnetic body and a part of the second main magnetic body; and An electronic contactor further comprising a second holder made of a metal material that contacts the fourth side and is attached to another part of the first main magnetic body and another part of the second main magnetic body.

6. In Paragraph 5, The first holder and the second holder are made of a magnetic material, forming an electronic contactor.

7. In Paragraph 5, The first holder above is, A first metal plate portion in contact with the third side above; A first main coupling portion extending from the first metal plate portion and attached to the outer side of a part of the first main magnetic body; A first main locking part extending from the first main coupling part and fixing the first main magnetic body to the magnetic body housing; A second main coupling portion extending from the first metal plate portion and attached to the outer side of a portion of the second main magnetic body; and It includes a second main locking part extending from the second main coupling part and fixing the second main magnetic body, and The above second holder is, A second metal plate portion in contact with the fourth side above; A third main coupling part extending from the second metal plate part and attached to the outer side of another part of the first main magnetic body; A third main locking part extending from the third main coupling part and fixing the first main magnetic body; A fourth main coupling portion extending from the second metal plate portion and attached to the outer side of another part of the second main magnetic body; and An electronic contactor comprising a fourth main locking portion extending from the fourth main coupling portion and securing the second main magnetic body.

8. In Paragraph 7, The first main locking portion is provided to prevent the first main magnetic body from detaching from the first insertion hole along the direction toward the second housing, and An electronic contactor, wherein the second main locking portion is provided to prevent the second main magnetic body from detaching from the second insertion hole along the direction toward the second housing.

9. In Paragraph 7, The first amplifying magnetic body is coupled to the first main coupling part, and The second amplifying magnetic body is coupled to the third main coupling part, and The above third amplifying magnetic body is coupled to the above second main coupling part, and The above-mentioned fourth amplifying magnetic body is an electronic contactor coupled to the above-mentioned fourth main coupling part.

10. In Paragraph 7, The above third aspect is, A first contact portion to which the first metal plate portion contacts; A first protrusion protruding from the first contact portion; and It includes a second protrusion formed on the opposite side from the first protrusion with the first contact portion in between, and protruding from the first contact portion. The above fourth aspect is, A second contact portion that contacts the second metal plate portion; A third protrusion protruding from the second contact portion; and An electronic contactor comprising a fourth protrusion formed on the opposite side from the third protrusion with the second contact portion in between, and protruding from the second contact portion.

11. In Paragraph 7, The above plurality of magnetic bodies have a first inclined surface formed at an angle to the magnetic direction, An electronic contactor in which the inner wall of the first insertion hole and the inner wall of the second insertion hole have a second inclined surface corresponding to the first inclined surface.

12. In Paragraph 11, The first side is provided with a third insertion hole into which the first amplifying magnetic body is inserted and a fourth insertion hole into which the second amplifying magnetic body is inserted, and An electronic contactor having a fifth insertion hole into which the third amplifying magnetic body is inserted and a sixth insertion hole into which the fourth amplifying magnetic body is inserted on the second side.

13. In Paragraph 4, The first main magnetic body and the second main magnetic body include an inclined portion formed at an angle to the magnetic direction of the first main magnetic body and the second main magnetic body. An electronic contactor having a side of the magnetic housing formed to wrap around the inclined portion and provided with an anti-detachment portion.

14. In Paragraph 4, An electronic contactor, wherein the side of the magnetic housing is provided with a detachment prevention part that prevents the first main magnetic body and the second main magnetic body from detaching from the magnetic housing along the front and rear directions of the magnetic housing.

15. In Paragraph 12, A first stopper is formed in the third insertion hole to prevent the first amplifying magnetic material from flowing into the interior of the magnetic material housing, and A second stopper is formed in the fourth insertion hole to prevent the second amplifying magnetic material from flowing into the interior of the magnetic material housing, and A third stopper is formed in the fifth insertion hole to prevent the third amplifying magnetic material from flowing into the interior of the magnetic material housing, and An electronic contactor in which a fourth stopper is formed in the sixth insertion hole to prevent the fourth amplifying magnetic material from flowing into the interior of the magnetic material housing.

16. In Paragraph 12, The above magnetic housing is, A first guide part positioned adjacent to the third insertion hole and guiding the first main locking part to slide; A second guide part positioned adjacent to the fifth insertion hole and guiding the second main locking part to slide; A third guide part positioned adjacent to the fourth insertion hole and guiding the third main locking part to slide; and An electronic contactor further comprising a fourth guide portion disposed adjacent to the sixth insertion hole and guiding the fourth main locking portion to slide.

17. In a magnetic housing device for an electronic contactor, A magnetic housing that encloses a portion of the fixed contact and the movable contact of the above-mentioned electronic contactor; and It includes a plurality of magnetic bodies arranged in a Halbach arrangement on the side of the magnetic housing, and The side of the plurality of magnetic bodies is provided with a plurality of magnetic body insertion holes into which the plurality of magnetic bodies are inserted, and A magnetic housing device for an electronic contactor, wherein at least one of the plurality of magnetic insertion holes is opened in a direction parallel to the side of the magnetic housing.

18. In a method for assembling an electronic contactor, the electronic contactor assembly method A first insertion step of inserting a first main magnetic body and a second main magnetic body into a magnetic body housing along the height direction of the magnetic body housing; A second insertion step of inserting a plurality of amplifying magnetic bodies into the magnetic body housing so as to be positioned on both sides of the first main magnetic body and the second main magnetic body; A fixing step of surrounding the outer sides of the first main magnetic body, the second main magnetic body, and the plurality of amplifying magnetic bodies with the first holder and the second holder, and fixing the first main magnetic body, the second main magnetic body, and the plurality of amplifying magnetic bodies to the magnetic body housing; A seating step of seating the above magnetic housing on a contact portion equipped with a plurality of fixed contacts; and A method for assembling an electronic contactor, comprising a receiving step of accommodating the magnetic housing and the contact portion inside the first housing and the second housing.

19. In Paragraph 18, In the above fixing step, The first holder is coupled to a part of the first main magnetic body and a part of the second main magnetic body, and An electronic contactor assembly method in which the second holder is coupled to another part of the first main magnetic body and another part of the second main magnetic body.

20. A method for assembling a magnetic housing for an electronic contactor, wherein the magnetic housing for an electronic contactor is assembled, A step of inserting a plurality of amplifying magnetic bodies into the magnetic body housing; A first fixing step of surrounding the outer sides of the plurality of amplifying magnetic bodies with the first holder and the second holder to fix the plurality of amplifying magnetic bodies to the magnetic body housing; A main magnetic body insertion step of moving a first main magnetic body and a second main magnetic body disposed between the plurality of amplifying magnetic bodies along the height direction of the magnetic body housing and inserting them into the magnetic body housing; and A method for assembling a magnetic housing for an electronic contactor, comprising: a second fixing step of attaching the first holder and the second holder to the first main magnetic body and the second main magnetic body to fix the first main magnetic body and the second main magnetic body to the magnetic housing.

21. In Paragraph 20, A method for assembling a magnetic housing for an electronic contactor, wherein in the first fixing step, the first holder and the second holder are attached to the plurality of amplifying magnetic bodies such that they do not overlap with the first insertion hole and the second insertion hole of the magnetic housing into which the first main magnetic body and the second main magnetic body are inserted.

Images