Contactor

Abstract

The utility model relates to a contactor. The contactor comprises a base and a coil assembly. The base comprises a base body, a base main contact and a base auxiliary contact, the base main contact and the base auxiliary contact are both arranged on the base body, and the base main contact and the base auxiliary contact are respectively used for being externally connected with a power supply; the coil assembly comprises a body, a coil main contact and a coil auxiliary contact, the coil main contact is arranged on the body and detachably connected with the base main contact, and the coil auxiliary contact is arranged on the body and detachably connected with the base auxiliary contact. The contactor provided by the embodiment of the utility model is divided into the base and the coil assembly, and the base and the coil assembly are detachably connected. When the coil assembly is damaged, the damaged coil assembly is replaced by a new coil assembly. The whole contactor does not need to be replaced, and the maintenance cost is reduced. And the coil assembly and the base are connected conveniently, so that the installation difficulty of the coil assembly is also reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of switch electric appliances, in particular to a contactor. BACKGROUND

[0002] The contactor is a widely used switch electric appliance, which uses electromagnetic, pneumatic or hydraulic principle to realize the on-off of the main circuit through the control circuit. The contactor has the advantages of strong breaking current capacity, rapid action, safe operation, frequent operation and remote control, but cannot cut off short-circuit current, so the contactor usually needs to be used in cooperation with a fuse. The main control object of the contactor is a motor, and it can also be used to control other power loads such as electric welders and electric furnaces.

[0003] After the contactor is used for a long time, the coil of the contactor is prone to damage, so the contactor needs to be replaced. Because the contactor needs to be connected with a copper bar during installation, the copper bar also needs to be disassembled when the contactor is disassembled, and a new contactor and copper bar need to be installed, which results in a long time spent on the entire process. CONTENT OF THE UTILITY MODEL

[0004] The present application proposes a contactor to solve the problem that the disassembly and installation process of the existing contactor takes a long time when the contactor fails, which has the technical effect of shortening the installation time of the contactor.

[0005] A contactor comprises:

[0006] A base comprises a seat body, a base main contact and a base auxiliary contact, the base main contact and the base auxiliary contact are arranged on the seat body, and the base main contact and the base auxiliary contact are respectively used to externally connect a power supply;

[0007] A coil assembly comprises a body, a coil main contact and a coil auxiliary contact, the coil main contact is arranged on the body and detachably connected with the base main contact, and the coil auxiliary contact is arranged on the body and detachably connected with the base auxiliary contact.

[0008] In one of the embodiments, the base auxiliary contact comprises a wiring part and a transition part, the wiring part is used to externally connect a power supply, the transition part is electrically connected with the wiring part through a lead wire, and the transition part is also connected with the coil auxiliary contact to conduct the wiring part and the coil auxiliary contact.

[0009] In one of the embodiments, the surface of the seat body towards the body is recessed to form a groove, and the groove bottom wall is provided with the transition part;

[0010] The body is provided with a protrusion, the coil auxiliary contact is arranged on the protrusion, the protrusion is arranged in the groove, and the coil auxiliary contact is matched with the transition part.

[0011] In one of the embodiments, the seat body comprises a first surface and a second surface arranged adjacently, the first surface is provided with the transition part, the second surface is provided with the wiring part, the wiring part is in plurality, all the wiring parts are divided into two wiring groups, the two wiring groups are distributed on the two sides of the transition part along a first direction, each of the wiring groups comprises a plurality of the wiring parts, and the wiring parts correspond to the transition part one by one.

[0012] In one of the embodiments, the wiring groups are arranged protrudingly relative to the second surface, and the orthographic projection on the second surface is in a stepped shape, along the first direction, the wiring groups have a plurality of subparts parallel to the first surface, and one of the subparts is provided with one of the wiring parts.

[0013] In one of the embodiments, the two wiring groups are arranged symmetrically about the transition part.

[0014] In one of the embodiments, the part of the first surface without the groove is provided with a plurality of clamping grooves, the plurality of clamping grooves are divided into two groups and arranged on the two sides of the groove along the first direction, and the groove bottom wall of each of the clamping grooves is provided with the base main contact.

[0015] The body is provided with a plurality of bosses, each of the bosses is provided with the coil main contact and clamped in the clamping groove.

[0016] In one of the embodiments, along the first direction, the seat body comprises two end parts arranged oppositely, each of the end parts is provided with a threaded hole, the threaded hole is configured as an external power supply part electrically connected with the base main contact, and the threaded hole is used for threadedly connecting with a fastener to fix a copper bar of an external power supply.

[0017] In one of the embodiments, along a second direction, the end parts are provided with a protrusion and a mounting part crossly, the mounting part is provided with the threaded hole, the protrusion and the mounting part jointly form a bearing surface, and the bearing surface is used for bearing the copper bar, wherein the second direction intersects the first direction and is parallel to the first surface.

[0018] In one of the embodiments, the seat body is provided with a first through hole, the body is provided with a second through hole, and the contactor further comprises a locking piece, the locking piece passes through the first through hole and the second through hole to connect the seat body and the body together.

[0019] The contactor is divided into two parts, a base and a coil assembly, and is detachably connected between the two. When the coil assembly is damaged, the damaged coil assembly can be replaced with a new one. The entire contactor does not need to be replaced, reducing maintenance costs. Moreover, the coil assembly and the base are connected in a detachable manner, reducing the difficulty of installing the coil assembly. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 An exploded view of the contactor is provided for some embodiments of the present application.

[0021] Figure 2 A structural schematic view of the contactor from another perspective is provided for some embodiments of the present application.

[0022] Figure 3 A structural schematic view of the base of the contactor is provided for some embodiments of the present application.

[0023] Figure 4 A structural schematic view of the coil assembly of the contactor is provided for some embodiments of the present application.

[0024] Explanation of reference signs:

[0025] 10, base; 11, base body; 111, first surface; 112, second surface; 113, threaded hole; 114, protrusion; 115, first through hole; 12, base main contact; 13, base auxiliary contact; 131, wiring portion; 132, transition portion; 20, coil assembly; 21, body; 211, second through hole; 22, coil main contact; 23, coil auxiliary contact; X, first direction; Y, second direction; 100, contactor. DETAILED DESCRIPTION

[0026] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein without departing from the spirit of the present application, and those skilled in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0029] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Please see Figure 1 and Figure 2 One embodiment of this application provides a contactor 100, which includes a base 10 and a coil assembly 20. The base 10 includes a seat 11, a main contact 12, and an auxiliary contact 13. The main contact 12 and the auxiliary contact 13 are both disposed on the seat 11, and are used to connect an external power source. The base 10 is used to install the contactor 100 in a preset position.

[0033] The coil assembly 20 includes a body 21, a main coil contact 22 and an auxiliary coil contact 23. The main coil contact 22 is disposed on the body 21 and is detachably connected to the main contact 12 of the base. The auxiliary coil contact 23 is disposed on the body 21 and is detachably connected to the auxiliary contact 13 of the base.

[0034] The main contacts 22 of the coil and the main contacts 12 of the base, as well as the auxiliary contacts 23 of the coil and the auxiliary contacts 13 of the base, can be installed using easy-to-disassemble methods such as snap-fit ​​or threaded connection, so as to facilitate the installation of the coil assembly 20 on the base 10 or the removal of the coil assembly 20 from the base 10.

[0035] When the coil assembly 20 and the base 10 are assembled together, the contactor 100 is energized and operates normally. The main contacts 22 of the coil and 12 of the base are connected to form an output circuit, which is used to connect the power supply and the load. When the electromagnetic coil of the coil assembly 20 is energized, it can control the operation of the load equipment. When the auxiliary contacts 23 of the coil and 13 of the base are connected, they can be used to output signals to convey the information that "the electrical equipment is energized".

[0036] In practical use, the coil assembly 20 is prone to damage. The contactor 100 provided in this embodiment consists of two parts: a base 10 and a coil assembly 20, which are detachably connected. When the coil assembly 20 is damaged, it can be replaced with a new one. This eliminates the need to replace the entire contactor 100, reducing maintenance costs. Furthermore, the easy-to-detach connection between the coil assembly 20 and the base 10 also reduces the difficulty of installing the coil assembly 20.

[0037] likeFigure 2 As shown, in some embodiments, the base auxiliary contact 13 comprises a wiring portion 131 and a transition portion 132, the wiring portion 131 is used to externally connect the power supply, the transition portion 132 is electrically connected with the wiring portion 131 through a wire, and the transition portion 132 is also connected with the coil auxiliary contact 23 to realize the conduction between the wiring portion 131 and the coil auxiliary contact 23.

[0038] In other words, the transition portion 132 is used to electrically connect the wiring portion 131 and the coil auxiliary contact 23 to realize the conduction between them.

[0039] Because the wiring portion 131 also needs to be externally connected with the power supply through a wire, a wiring space needs to be reserved for the wiring portion 131. By splitting the base auxiliary contact 13 into two parts, the wiring portion 131 and the transition portion 132, and by using the transition portion 132 to connect the coil auxiliary contact and using the wiring portion 131 to connect with the wire of the external power supply, the separation of the base 10 and the coil assembly 20 can be better realized.

[0040] Please continue to refer to Figure 2 In some embodiments, the surface of the seat body 11 towards the body 21 is recessed to form a recess, the groove bottom wall of the recess is provided with the transition portion 132; the body 21 is provided with a protruding portion, the protruding portion is provided with the coil auxiliary contact 23, the protruding portion is located in the recess, and the coil auxiliary contact 23 is in recess-protrusion cooperation with the transition portion 132.

[0041] Exemplarily, the seat body 11 is provided with a rectangular recess, the groove bottom wall of the recess is provided with a plurality of transition portions 132. The protruding portion protruding from the body 21 is shaped to be matched with the recess, the protruding portion is provided with a plurality of openings, and each opening is provided with a coil auxiliary contact 23. When the seat body 11 and the body 21 are assembled together, the protruding portion of the body 21 is located in the recess of the seat body 11, different transition portions 132 can be inserted into the corresponding openings, and the corresponding coil auxiliary contacts 23 are contacted.

[0042] In this way, the recess can limit the protruding portion, the connection stability between the two can be improved, and the probability of relative displacement between the seat body 11 and the body 21 is reduced. By setting the coil auxiliary contact 23 and the transition portion 132 in recess-protrusion cooperation, the connection stability between the coil auxiliary contact 23 and the transition portion 132 can be further improved.

[0043] As Figure 2 and Figure 3As shown, in some embodiments, the seat body 11 comprises a first surface 111 and a second surface 112 arranged adjacently, the first surface 111 is provided with the transition portions 132, and the second surface 112 is provided with the wiring portions 131, the number of the wiring portions 131 is plural, and all the wiring portions 131 are divided into two wiring groups, the two wiring groups are distributed on the two sides of the transition portions 132 along the first direction X, each wiring group comprises a plurality of wiring portions 131, and each wiring portion 131 corresponds to one transition portion 132.

[0044] Exemplarily, along the first direction X, the second surface 112 is provided with two wiring groups, and each wiring group is provided with five wiring portions 131. Different wiring portions 131 are communicated with corresponding transition portions 132 through wires, that is, the wiring portions 131 and the transition portions 132 are in one-to-one correspondence. When the seat body 11 and the main body 21 are connected together, the first surface 111 of the seat body 11, that is, the surface where the transition portions 132 are located, is in contact with the main body 21. Therefore, the wiring portions 131 are arranged on the second surface 112 adjacent to the first surface 111, so that a larger space is provided for wiring at the wiring portions 131, which is convenient for user operation.

[0045] Further, in some embodiments, the wiring groups are arranged protrudingly relative to the second surface 112, and the orthographic projection on the second surface 112 is in a stepped shape. Along the first direction X, the wiring groups have a plurality of sub-positions parallel to the first surface 111, and each sub-position is provided with one wiring portion 131.

[0046] Exemplarily, the wiring groups are in a roughly stepped shape, and each wiring group comprises a plurality of sub-positions parallel to the first surface 111, and each sub-position is provided with one wiring portion 131. For example, a single wiring group comprises five sub-positions, and each sub-position is provided with one wiring portion 131. That is, a single wiring group comprises five wiring portions 131. Because the contactor 100 comprises two wiring groups, the entire wiring groups comprise ten wiring portions 131.

[0047] The wiring portions 131 in each wiring group are arranged on different planes, which not only saves space, but also can stagger different wiring portions 131, reduces the probability of mutual entanglement of the wires connected at the wiring portions 131, and is convenient for wiring at different wiring portions 131.

[0048] Further, the two wiring groups are arranged symmetrically about the transition portions 132.

[0049] In this way, it is not only convenient to wire the wiring portions 131 of each wiring group, but also beautifies the appearance of the contactor 100.

[0050] Further, the first surface 111 is provided with a plurality of clamping grooves at the positions where no groove is arranged, the plurality of clamping grooves are divided into two groups and arranged on both sides of the groove along the first direction X, and the groove bottom wall of each clamping groove is provided with a base main contact 12; the body 21 is provided with a plurality of bosses, each boss is provided with a coil main contact 22 and clamped in the clamping groove.

[0051] Exemplarily, along the first direction X, two groups of clamping grooves are arranged on both sides of the groove, the number of each group of clamping grooves is three, and the shape is configured as a circle. The body 21 is provided with a plurality of bosses, the number of bosses is equal to the number of clamping grooves, and the shape of the boss is configured as a cylinder to match the clamping groove.

[0052] When the base 10 and the coil assembly 20 are assembled together, the boss is inserted into the clamping groove to realize the conduction between the base main contact 12 and the coil main contact 22. The clamping mode facilitates the connection and separation between the base main contact 12 and the coil main contact 22.

[0053] In some embodiments, along the first direction X, the seat body 11 includes two end portions arranged oppositely, each end portion is provided with a threaded hole 113, the threaded hole 113 is configured to be electrically connected with the base main contact 12 and an external power supply part, and the threaded hole 113 is used for threaded connection with a fastener to fix a copper bar of the external power supply.

[0054] When the copper bar is connected with the seat body 11, the copper bar can be placed at the end portion of the seat body 11, and the copper bar is fixed on the seat body 11 by penetrating the copper bar and the threaded hole 113 of the end portion with the fastener, so as to realize the conduction between the copper bar and the base main contact 12. The threaded connection mode facilitates the fixing and dismounting of the copper bar on the seat body 11, and simplifies the installation mode of the copper bar.

[0055] In addition, the seat body 11 is also provided with a mounting hole, and a fastener such as a screw is penetrated through the mounting hole to mount the seat body 11 at a predetermined position.

[0056] As shown in Figure 2 and Figure 3 In some embodiments, along the second direction Y, the end portion is provided with a protrusion 114 and a mounting portion, the mounting portion is provided with a threaded hole 113, and the protrusion 114 and the mounting portion jointly form a supporting surface for supporting the copper bar, wherein the second direction Y intersects the first direction X and is parallel to the first surface 111.

[0057] Exemplarily, when the copper bar is placed at the end portion, the copper bar can be jointly supported by the protrusion 114 and the mounting portion, and then the fastener is penetrated through the copper bar and connected with the threaded hole 113 in the mounting portion to complete the assembly of the copper bar.

[0058] As to the setting of the end of the seat 11 as the protrusion 114 and the mounting portion, it is on the basis of supporting the copper bar to reduce the weight of the seat 11.

[0059] As shown in Figure 3 and Figure 4 In some embodiments, the seat 11 is provided with a first through hole 115, the body 21 is provided with a second through hole 211, and the contactor 100 further comprises a locking member, which is arranged through the first through hole 115 and the second through hole 211 to connect the seat 11 and the body 21 together.

[0060] When the corresponding base main contact 12 and the coil main contact 22 on the seat 11 and the body 21 are connected together, and the base auxiliary contact 13 and the coil auxiliary contact 23 are also connected together, the use of the locking member such as a stud to sequentially pass through the second through hole 211 and the first through hole 115 to connect the seat 11 and the body 21 together can improve the connection stability between the seat 11 and the body 21, and reduce the probability of separation of the two.

[0061] In other embodiments, the body 21 is also recessed to form a hand-held portion, so that the user can hold the body 21 to install the body 21 on the seat 11, or remove the body 21 from the seat 11.

[0062] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0063] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A contactor characterized by, The utility model relates to a socket (10) and coil assembly (20) for a power supply, comprising: a base (10) comprising a base body (11), a base main contact (12) and a base auxiliary contact (13), the base main contact (12) and the base auxiliary contact (13) are arranged on the base body (11), the base main contact (12) and the base auxiliary contact (13) are respectively used for external connection of a power supply; a coil assembly (20) comprising a coil body (21), a coil main contact (22) and a coil auxiliary contact (23), the coil main contact (22) is arranged on the coil body (21) and detachably connected with the base main contact (12), and the coil auxiliary contact (23) is arranged on the coil body (21) and detachably connected with the base auxiliary contact (13).

2. The contactor of claim 1, wherein The base auxiliary contact (13) comprises a wiring portion (131) and a transition portion (132), the wiring portion (131) is used for external connection of a power supply, the transition portion (132) is electrically connected with the wiring portion (131) through a wire, and the transition portion (132) is also connected with the coil auxiliary contact (23) to conduct the wiring portion (131) and the coil auxiliary contact (23).

3. The contactor of claim 2, wherein, The surface of the base body (11) towards the coil body (21) is recessed to form a recess, and the bottom wall of the recess is provided with the transition portion (132); The coil body (21) is provided with a protruding portion, the coil auxiliary contact (23) is arranged on the protruding portion, the protruding portion is located in the recess, and the coil auxiliary contact (23) is in recess-protrusion cooperation with the transition portion (132).

4. The contactor of claim 2, wherein, The base body (11) comprises a first surface (111) and a second surface (112) arranged adjacently, the first surface (111) is provided with the transition portion (132), the second surface (112) is provided with the wiring portion (131), the number of the wiring portion (131) is plural, all the wiring portion (131) is divided into two wiring groups, the two wiring groups are distributed on the two sides of the transition portion (132) along a first direction X, each of the wiring groups comprises a plurality of the wiring portion (131), and the wiring portion (131) corresponds to the transition portion (132) one by one.

5. The contactor of claim 4, wherein, The wiring groups are arranged protrudingly relative to the second surface (112), and the orthographic projection of the wiring groups on the second surface (112) is in a stepped shape, along the first direction X, the wiring groups have a plurality of sub-positions parallel to the first surface (111), and one of the sub-positions is provided with one of the wiring portion (131).

6. The contactor of claim 5, wherein, The two wiring groups are arranged symmetrically about the transition portion (132).

7. The contactor of claim 4, wherein, The part of the first surface (111) without the recess is provided with a plurality of clamping grooves, the plurality of clamping grooves are divided into two groups and arranged on the two sides of the recess along the first direction X, and the bottom wall of each of the clamping grooves is provided with the base main contact (12); The coil body (21) is provided with a plurality of bosses, each of the bosses is provided with the coil main contact (22) and clamped in the clamping groove.

8. The contactor of claim 4, wherein, Along the first direction X, the seat body (11) comprises two oppositely arranged end portions, each of which is provided with a threaded hole (113) configured as an external power supply part electrically connected with the base main contact (12), and the threaded hole (113) is used for threadedly connecting with a fastener to fix a copper bar of the external power supply.

9. The contactor of claim 8, wherein, Along the second direction Y, the end portions are crossly provided with a protrusion (114) and a mounting portion, the mounting portion is internally provided with the threaded hole (113), and the protrusion (114) and the mounting portion jointly form a bearing surface used for bearing the copper bar, wherein the second direction Y intersects with the first direction X and is parallel to the first surface (111).

10. The contactor of any one of claims 1 to 9, wherein, The seat body (11) is provided with a first through hole (115), the body (21) is provided with a second through hole (211), and the contactor (100) further comprises a locking piece penetrating through the first through hole (115) and the second through hole (211) to connect the seat body (11) and the body (21) together.

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