Contactor accessory and contactor system

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and particularly discloses a contactor accessory and a contactor system. According to the contactor accessory provided by the utility model, the contactor accessory is electrically connected with the contactor through the conductive plugging of the first wiring board and the contactor, the contactor accessory and the contactor are electrically connected in a plugging manner, a manner of connecting the contactor accessory and the contactor through a lead is replaced, the contactor accessory is conveniently installed on the contactor, and the installation efficiency is improved. The connection stability of the contactor accessory and the contactor is good, and effective conductive connection of the contactor accessory and the contactor is ensured; the second wiring board is electrically connected with the first wiring board through a circuit of the circuit board, the second wiring board is arranged in the wiring cavity, the conductive part can be inserted into the wiring cavity and is electrically connected with the second wiring board, and the structure provides an independent wiring port for connecting an external power supply; the circuit of the circuit board is used for controlling the working current and the working voltage of the contactor coil.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to contactor accessories and a contactor system. Background Art

[0002] Contactors are electromagnetic control devices used to control the on and off of high current circuits. They are widely used in power systems, mainly to realize power distribution, signal transmission, circuit isolation, and load switching.

[0003] In the prior art, accessories can usually be installed on the contactor according to actual needs to expand the functions of the contactor, such as providing the contactor with functions such as reducing power consumption, AC / DC conversion and wide voltage. However, the structure of the electrical connection between the accessory connected to the contactor in the prior art is that the terminal provided on the accessory is directly connected to the wire extending from the contactor through conductive connection, and the terminal is used to connect to an external power supply. This structure has the problem of poor connection stability between the accessory and the contactor, and the wire and the terminal are prone to virtual connection. In addition, it is troublesome to install the accessory, and the wire needs to be fixed on the terminal to achieve conductive connection between the contactor and the accessory. Utility Model Content

[0004] The utility model aims to provide a contactor accessory and a contactor system, which are convenient for installing the contactor accessory on the contactor, and the contactor accessory has good connection stability with the contactor, thereby ensuring that the contactor accessory and the contactor can be effectively electrically connected.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, a contactor accessory is provided, comprising:

[0007] An accessory housing, wherein the accessory housing is provided with a receiving cavity and at least two wiring cavities, wherein the wiring cavities are communicated with the receiving cavity;

[0008] A circuit board is arranged in the accommodating cavity, and at least two first wiring boards and at least two second wiring boards are provided on the circuit board. The second wiring boards are electrically connected to the first wiring boards through the circuit of the circuit board, and the first wiring boards are used to be electrically connected to the contactor. The second wiring board is arranged in the wiring cavity, and the second wiring board is used to be electrically connected to the conductive member introduced into the wiring cavity.

[0009] As an optional technical solution for the above-mentioned contactor accessory, at least two interface seats are protruded at intervals on one side of the accessory housing, each of the interface seats is respectively provided with the wiring cavity, the wiring cavity has a cavity opening, the cavity opening is covered with a cover plate, the cover plate is provided with a wiring port connected to the wiring cavity, the cover plate is provided with an abutment plate, a support portion is provided in the wiring cavity, the abutment plate presses the second wiring board against the support portion, and the wiring port is arranged corresponding to the end of the second wiring board.

[0010] As an optional technical solution for the above-mentioned contactor accessory, the cavity opening is an L-shaped structure, the cover plate matches the shape of the cavity opening, one end of the cover plate is snap-fitted to the accessory shell, the other end of the cover plate is plugged into the interface socket, and the cover plate is pressed against at least a portion of the end surface of the second terminal block along a first direction.

[0011] As an optional technical solution for the above-mentioned contactor accessory, the accessory housing includes a housing base and a housing cover, the housing base is provided with the accommodating cavity, one side of the accommodating cavity is open, the housing cover is connected to the housing base and closes the opening, a first support member is provided at the bottom along the height direction of the housing base, a second support member is provided on the housing cover, the second support member is connected to the first support member, and the first support member supports the second support member in the height direction.

[0012] As an optional technical solution for the above-mentioned contactor accessory, the first support member includes a first protrusion, the second support member includes a second protrusion, the second protrusion is provided with a plug-in groove along the first direction, the first protrusion is plugged into the plug-in groove, and the end of the second protrusion is pressed against the circuit board.

[0013] As an optional technical solution for the above-mentioned contactor accessory, a limiting groove corresponding to the first terminal block is provided at the top of the shell base along the height direction, and the first terminal block passes through the limiting groove along the height direction. A limiting plate corresponding to the limiting groove is provided on the shell cover, and the limiting plate is inserted into the limiting groove, and the limiting plate presses the first terminal block in the limiting groove along the first direction.

[0014] As an optional technical solution for the above-mentioned contactor accessory, a first guide column is provided in one of the shell base and the shell cover, and a guide hole is provided on the first guide column along a first direction; a second guide column is provided in the other of the shell base and the shell cover, and the second guide column is inserted into the guide hole; and a first avoidance groove for avoiding the first guide column or the second guide column is provided on the circuit board.

[0015] As an optional technical solution for the above-mentioned contactor accessory, the two opposite sides of the shell base are respectively recessed inward to form a snap-in groove, a snap-in block is provided in the snap-in groove, a snap-in plate corresponding to the snap-in groove is provided on the shell cover, a snap-in hole is provided on the snap-in plate, the snap-in plate is placed in the snap-in groove, and the snap-in block is snapped in the snap-in hole, and a second avoidance groove for accommodating the recessed part of the shell base is provided on the circuit board.

[0016] As an optional technical solution for the above-mentioned contactor accessory, the accessory housing is provided with a first clip and a second clip at the bottom and the top along the height direction, respectively. The first clip and the second clip are respectively used to clip with the contactor, and the first clip and the second clip can be confined in the mounting groove of the contactor.

[0017] As an optional technical solution for the above-mentioned contactor accessory, the length of the accessory shell in the second direction is the same as the length of the contactor's socket in the second direction, and the accessory shell is provided with a receiving groove for accommodating the socket, and the receiving groove is set through on both sides of the second direction.

[0018] As an optional technical solution for the above-mentioned contactor accessory, the length of the accessory shell in the second direction is greater than the length of the contactor's socket in the second direction, and the accessory shell is provided with a receiving groove for accommodating the socket, and the two opposite side walls of the receiving groove are respectively provided with guide grooves extending along the second direction, and the guide grooves are used for the guide slider on the socket to be plugged in.

[0019] As an optional technical solution of the above-mentioned contactor accessory, the circuit of the circuit board includes one or more of a first circuit for reducing power consumption, a second circuit for AC / DC conversion, and a third circuit for wide voltage.

[0020] In a second aspect, a contactor system is provided, comprising a contactor and any one of the contactor accessories described above, wherein the contactor accessory is detachably connected to the contactor.

[0021] Beneficial effects of the utility model:

[0022] The contactor accessory provided by the utility model is conductively plugged with the contactor through the first wiring board to realize the electrical connection between the contactor accessory and the contactor. The contactor accessory and the contactor are conductively connected in the form of plugging and unplugging, which replaces the form of connecting the contactor accessory and the contactor with a wire, and is convenient for installing the contactor accessory on the contactor. The connection stability between the contactor accessory and the contactor is good, ensuring that the contactor accessory and the contactor can be effectively conductively connected; the second wiring board is electrically connected to the first wiring board through the circuit of the circuit board, the second wiring board is arranged in the wiring cavity, the conductive member can be plugged in the wiring cavity and electrically connected to the second wiring board, and the structure provides an independent wiring port for connecting an external power supply, and the circuit of the circuit board is used to control the working current and working voltage of the contactor coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic assembly diagram of a first structure of a contactor system provided by an embodiment of the utility model;

[0024] Figure 2 It is an exploded view of the contactor accessory provided by the embodiment of the utility model;

[0025] Figure 3 It is an axonometric diagram of a contactor accessory provided by an embodiment of the utility model;

[0026] Figure 4 This is a schematic structural diagram of a housing cover provided by an embodiment of the utility model from a first viewing angle;

[0027] Figure 5 It is a structural schematic diagram of a cover plate provided by an embodiment of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the housing base provided by an embodiment of the utility model;

[0029] Figure 7 It is a structural schematic diagram of a circuit board provided by an embodiment of the utility model;

[0030] Figure 8 It is a schematic diagram of the assembly structure of the housing base and the circuit board provided in the embodiment of the utility model;

[0031] Fig. 9 is a structural schematic diagram of a second viewing angle of the housing cover provided by an embodiment of the utility model;

[0032] Fig.10 It is an exploded view of the first structure of the contactor system provided by the embodiment of the utility model;

[0033] Fig.11 It is a schematic assembly diagram of a second structure of a contactor system provided by an embodiment of the utility model;

[0034] Fig.12 is an exploded view of a second structure of a contactor system provided by an embodiment of the utility model;

[0035] Fig.13 It is a schematic diagram of the second structure of the contactor accessory provided by the embodiment of the utility model.

[0036] In the figure:

[0037] 100, contactor accessories; 200, contactor; 201, mounting slot; 202, socket; 203, guide slider; 204, base; 205, socket port;

[0038] 1. Accessory housing; 2. Circuit board; 3. First card connector; 4. Second card connector;

[0039] 11. Accommodating chamber; 12. Wiring chamber; 121. Insertion block; 13. Interface seat; 14. Cover plate; 141. Wiring port; 142. Abutment plate; 143. Fixing port; 144. Connecting plate; 145. Slot; 15. Supporting portion; 16. Shell base; 161. First supporting member; 162. Limiting groove; 163. First guide column; 164. Guide hole; 165. Clamping groove; 166. Clamping block; 17. Shell cover; 171. Second supporting member; 172. Insertion groove; 173. Limiting plate; 174. Second guide column; 175. Clamping plate; 176. Clamping hole; 18. Accommodating groove; 181. Guide slide groove; 19. Third clamping member;

[0040] 21. First wiring board; 22. Second wiring board; 23. First avoidance groove; 24. Second avoidance groove; 25. Third avoidance groove. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] like Figure 1 As shown, this embodiment provides a contactor system, including a contactor 200 and a contactor accessory 100, wherein the contactor accessory 100 is detachably connected to the contactor 200. The contactor accessory 100 can be selectively connected to the contactor 200 to add some functions to the contactor 200, such as providing the contactor 200 with functions such as reducing power consumption, AC / DC conversion, or regulated voltage.

[0046] like Figures 1 to 3 As shown, the contactor accessory 100 includes an accessory housing 1 and a circuit board 2. The accessory housing 1 is provided with a receiving cavity 11 and at least two wiring cavities 12, and the wiring cavity 12 is connected with the receiving cavity 11. The circuit board 2 is arranged in the receiving cavity 11, and at least two first wiring boards 21 and at least two second wiring boards 22 are arranged on the circuit board 2. The second wiring board 22 is conductively connected to the first wiring board 21 through the circuit of the circuit board 2. The first wiring board 21 is used to be electrically connected to the contactor 200, and the second wiring board 22 is arranged in the wiring cavity 12, and the second wiring board 22 is used to be electrically connected to the conductive member introduced into the wiring cavity 12.

[0047] The contactor accessory 100 is conductively plugged with the contactor 200 through the first terminal block 21 to achieve electrical connection between the contactor accessory 100 and the contactor 200. The contactor accessory 100 and the contactor 200 are conductively connected in the form of plugging and unplugging, which replaces the form of connecting the contactor accessory 100 and the contactor 200 with a wire, making it convenient to install the contactor accessory 100 on the contactor 200, and the connection stability between the contactor accessory 100 and the contactor 200 is good, ensuring that the contactor accessory 100 and the contactor 200 can be effectively conductively connected; the second terminal block 22 is electrically connected to the first terminal block 21 through the circuit of the circuit board 2, the second terminal block 22 is arranged in the wiring cavity 12, the conductive member can be plugged into the wiring cavity 12 and electrically connected to the second terminal block 22, and this structure provides an independent wiring port for connecting an external power supply, and the circuit of the circuit board 2 is used to control the working current and working voltage of the contactor coil.

[0048] The circuit of the circuit board 2 includes one or more of a first circuit for reducing power consumption, a second circuit for AC / DC conversion, and a third circuit for wide voltage, so that the contactor accessory 100 can provide one or more of the functions of reducing power consumption, AC / DC conversion, and wide voltage for the contactor 200, and the circuit board 2 that can realize the above functions is arranged in the contactor accessory, instead of the structure in the prior art that the circuit board 2 that realizes the above functions is arranged inside the contactor, and the user can select the contactor accessory according to the needs, thereby improving the flexibility of the contactor. In some other embodiments, circuits for realizing other functions can also be arranged on the circuit board 2, which are not specifically limited here. The above-mentioned first circuit, second circuit, and third circuit are all prior art and are not specifically limited here.

[0049] Reference Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, at least two interface seats 13 are convexly provided at intervals on one side of the accessory housing 1, and each interface seat 13 is provided with a wiring cavity 12, and the wiring cavity 12 has a cavity opening, and a cover plate 14 is provided at the cavity opening, and a wiring port 141 communicating with the wiring cavity 12 is provided on the cover plate 14. An abutment plate 142 is provided on the cover plate 14, and a support portion 15 is provided in the wiring cavity 12. The abutment plate 142 presses the second wiring board 22 on the support portion 15, and the second wiring board 22 is positioned between the support portion 15 and the abutment plate 142. The wiring port 141 is provided corresponding to the end of the second wiring board 22, and the conductive member can be placed in the wiring cavity 12 through the wiring port 141, and the conductive member can be in conductive contact with the second wiring board 22. The support portion 15 and the abutment plate 142 limit the second wiring board 22 in the height direction.

[0050] Optionally, the cavity opening of the wiring cavity 12 is an L-shaped structure, the cover plate 14 matches the shape of the cavity opening, one end of the cover plate 14 is snap-fitted with the accessory housing 1, and the other end of the cover plate 14 is plugged into the interface seat 13, and the cover plate 14 is pressed against at least part of the end face of the second wiring board 22 along the first direction to limit the position of the second wiring board 22 in the first direction. In the height direction, the cavity opening extends from top to bottom to form an L shape, and the wiring port 141 is arranged on the side plate of the cover plate 14 in the first direction to facilitate the insertion of the conductive member. A fixing port 143 is provided at the top of the cover plate 14 in the height direction, and a fixing bolt is arranged at the fixing port 143, which is screwed on the cover plate 14, and one end of the fixing bolt placed in the wiring cavity 12 is connected to a fixing plate, and screwing the fixing bolt can cause the fixing plate to press the conductive member against the second wiring board 22, so that the conductive member and the second wiring board 22 are conductively connected. In actual application, after the contactor 200 is installed, the wiring port 141 on the cover plate 14 is arranged upward to facilitate the introduction and insertion of the conductive member into the wiring cavity 12, while the fixing port 143 is arranged facing the operator to facilitate the operator to screw the fixing screw.

[0051] Each interface seat 13 is respectively provided with a cover plate 14, and adjacent cover plates 14 are connected by connecting plates 144. The connecting plates 144 and the multiple cover plates 14 form a whole, which can be buckled at the cavity opening at the same time during installation, simplifying the assembly process and reducing the number of parts. Optionally, the cover plate 14 and the connecting plate 144 are an integrally formed structure.

[0052] The support portion 15 and the abutment plate 142 limit the second wiring board 22 in the height direction, the cover plate 14 limits the second wiring board 22 in the first direction, the opposite sides of the second wiring board 22 contact the opposite side walls of the wiring chamber 12, and the wiring chamber 12 limits the second wiring board 22 in the second direction. The first direction and the second direction are respectively perpendicular to the height direction, and the first direction and the second direction are perpendicular to each other.

[0053] One end of the cover plate 14 is snap-fitted with the accessory housing 1. Optionally, one end of the cover plate 14 is elastically provided with a third snap-fitting member 19, which includes a third snap-fitting plate. One end of the third snap-fitting plate is provided with a third snap-fitting block. The other end of the third snap-fitting plate is elastically connected to the cover plate 14. The accessory housing 1 is provided with a snap-fitting interface, and the third snap-fitting block is snap-fitted into the snap-fitting interface. The other end of the cover plate 14 is plugged into the interface seat 13. Optionally, two opposite sides of the cover plate 14 are respectively concavely provided with slots 145, and two opposite side walls in the wiring cavity 12 are convexly provided with plug-in blocks 121. When the cover plate 14 is installed along the first direction, the third snap-fitting member 19 is snap-fitted into the card interface, and the plug-in block 121 is plugged into the slot 145 along the first direction. While positioning the position of the cover plate 14, it can also ensure that the surface of the cover plate 14 is flush with the surface of the interface seat 13.

[0054] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the accessory housing 1 includes a housing base 16 and a housing cover 17, and at least two interface seats 13 are formed on the housing cover 17. The housing base 16 is provided with a receiving cavity 11, one side of the receiving cavity 11 is open, and the housing cover 17 is connected to the housing base 16 and closes the opening.

[0055] Optionally, the housing cover 17 is snap-fitted with the housing base 16. Specifically, the housing base 16 has two opposite sides respectively formed with snap-fit ​​grooves 165, the snap-fit ​​grooves 165 are provided with snap-fit ​​blocks 166, the housing cover 17 is provided with a snap-fit ​​plate 175 corresponding to the snap-fit ​​grooves 165, the snap-fit ​​plate 175 is provided with a snap-fit ​​hole 176, the snap-fit ​​plate 175 is placed in the snap-fit ​​grooves 165, and the snap-fit ​​block 166 is snap-fitted in the snap-fit ​​hole 176, and the circuit board 2 is provided with a second avoidance groove 24 for accommodating the recessed portion of the housing base 16. Usually, the snap-fit ​​plate 175 is elastically connected to the housing cover 17, and when the housing cover 17 and the housing base 16 are assembled, the snap-fit ​​plate 175 is elastically deformed so that the snap-fit ​​block 166 is snap-fitted in the snap-fit ​​hole 176. The snap-on plate 175 can be placed in the snap-on groove 165, or the snap-on plate 175 is placed in the snap-on groove 165. The snap-on plate 175 is flush with the surface of the housing base 16 to improve the overall aesthetics of the contactor accessory 100. The snap-on structure is simple and easy to assemble.

[0056] The clamping block 166 has a guiding inclined surface, which may be a right-angled triangle structure. The inclined surface has a guiding function and is arranged toward the outer shell cover 17. When the outer shell cover 17 is installed, the clamping plate 175 contacts the guiding inclined surface, and under the action of the guiding inclined surface, the clamping plate 175 gradually deforms outward until the clamping block 166 is clamped in the clamping hole 176, and then the clamping plate 175 is elastically reset.

[0057] like Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the two opposite sides of the shell base 16 are recessed inward, and then a raised structure is convexly provided on the inner wall of the wiring cavity 12. The circuit board 2 is provided with a second avoidance groove 24 for accommodating the recessed part of the shell base 16. The raised structure is placed in the second avoidance groove 24, which can limit the circuit board 2 in both the height direction and the second direction.

[0058] In some embodiments, a first support member 161 is provided at the bottom of the housing base 16 along the height direction. The first support member 161 can support the circuit board 2 upward, provide a support force for the installation of the circuit board 2, and facilitate the positioning of the circuit board 2 so as to fix and bond the circuit board 2 in the wiring cavity 12. Optionally, the first support member 161 can make the circuit board 2 abut against the top of the wiring cavity 12 to position the circuit board 2 in the height direction. A second support member 171 is provided on the housing cover 17, and the second support member 171 is connected to the first support member 161. The first support member 161 supports the second support member 171 upward in the height direction, provides a support force for the installation of the housing base 16 and the housing cover 17, and improves the stability of the connection between the housing base 16 and the housing cover 17. In addition, when the fixing bolts are screwed in the fixing port 143 to connect the conductive member and the second wiring board 22, the first support member 161 provides an upward support force, improves the structural strength of the housing cover 17, and prevents the housing cover 17 from being seriously offset in the height direction relative to the housing base 16. After the second support member 171 is connected to the first support member 161 , the second support member 171 can press the circuit board 2 against the bottom of the accommodating cavity 11 along the first direction, and can position the circuit board 2 in the first direction to improve the stability of the circuit board 2 fixed in the wiring cavity 12 .

[0059] A plurality of first support members 161 may be provided, and the second support members 171 are provided in one-to-one correspondence with the first support members 161. Further optionally, the first support member 161 includes a first protrusion, and the second support member 171 includes a second protrusion, and the second protrusion is provided with a plug-in slot 172 along the first direction, and the first protrusion is plugged into the plug-in slot 172, and the end of the second protrusion can be pressed against the circuit board 2, and the first protrusion supports the second protrusion upward, thereby improving the stability of the connection between the housing base 16 and the housing cover 17, and at the same time, the circuit board 2 can be positioned in the wiring cavity 12 in the first direction. Optionally, a third avoidance groove 25 is provided at the edge of the circuit board 2, and the third avoidance groove 25 is provided in correspondence with the first protrusion, and the edge of the circuit board 2 without the third avoidance groove 25 is pressed against the bottom cavity wall of the accommodating cavity 11.

[0060] Based on the above-mentioned snap-fit ​​structure of the shell base 16 and the shell cover 17, and the connection structure of the first support member 161 and the second support member 171, the shell cover 17 can be installed on the shell base 16 along the first direction, the first protrusion is inserted into the insertion groove 172, and the snap-fit ​​block 166 is inserted into the snap-fit ​​hole 176.

[0061] In some embodiments, a limiting groove 162 corresponding to the first wiring board 21 is provided at the top of the housing base 16 in the height direction, and the first wiring board 21 passes through the limiting groove 162 in the height direction. A limiting plate 173 corresponding to the limiting groove 162 is provided on the housing cover 17, and the limiting plate 173 is inserted into the limiting groove 162, and the limiting plate 173 presses the first wiring board 21 in the limiting groove 162 along the first direction, and the limiting plate 173 limits the position of the first wiring board 21 in the first direction. The two side walls opposite to the limiting groove 162 limit the position of the first wiring board 21 in the second direction. One end of the first wiring board 21 that passes through the outside of the accommodating cavity 11 is conductively plugged into the contactor 200.

[0062] In some embodiments, a first guide post 163 is provided in one of the housing base 16 and the housing cover 17, and a guide hole 164 is provided on the first guide post 163 along the first direction, and a second guide post 174 is provided in the other of the housing base 16 and the housing cover 17, and the second guide post 174 is inserted into the guide hole 164, and a first avoidance groove 23 for avoiding the first guide post 163 or the second guide post 174 is provided on the circuit board 2. The second guide post 174 cooperates with the guide hole 164, plays a guiding and positioning role for the installation of the housing cover 17, and facilitates the rapid assembly of the housing cover 17 and the housing base 16.

[0063] Optionally, along the height direction, the bottom and top of the housing base 16 are respectively provided with a first guide column 163 or a second guide column 174, which plays a role of guiding and positioning for the installation of the housing cover 17. The first avoidance groove 23 is formed by the concave setting of the edge of the circuit board 2, and the shape of the first avoidance groove 23 is adapted to the shape of the first guide column 163 or the second guide column 174, so as to play a role of positioning the circuit board 2 in the height direction.

[0064] like Fig.10 As shown, the contactor accessory 100 is detachably connected to the contactor 200. In some embodiments, the first clip 3 and the second clip 4 are respectively provided at the bottom and the top of the accessory housing 1 in the height direction. The first clip 3 and the second clip 4 are respectively used to clip with the contactor 200, and the first clip 3 and the second clip 4 can be limited in the installation groove 201 of the contactor 200, so that the groove wall of the installation groove 201 of the contactor 200 supports the first clip 3 upward, thereby improving the stability of the connection between the contactor accessory 100 and the contactor 200.

[0065] The first clamping member 3 and the second clamping member 4 have similar structures, both of which include a clamping rod, one end of which is elastically connected to the accessory housing 1, and a clamping block is convexly provided at the other end of the clamping rod. The contactor 200 is provided with a clamping hole, and the clamping block is clamped in the clamping hole, thereby realizing the connection between the contactor accessory 100 and the contactor 200. The clamping rod of the first clamping member 3 is supported upward by the side wall of the mounting groove 201, and the clamping rod of the second clamping member 4 is limited by the side wall of the mounting groove 201. The clamping block of the first clamping member 3 and the clamping block of the second clamping member 4 are in opposite directions, so that the first clamping member 3 and the second clamping member 4 are supported in the mounting groove 201 of the contactor 200, thereby making the contactor accessory 100 and the contactor 200 fixedly connected.

[0066] In some embodiments, reference Figure 1 and Fig.10 As shown, the length of the accessory housing 1 in the second direction is the same as the length of the socket 202 of the contactor 200 in the second direction. The accessory housing 1 is provided with a receiving groove 18 for receiving the socket 202. The receiving groove 18 is provided through both sides in the second direction, which is convenient for installing the contactor accessory 100 on the contactor 200, and the outer side wall of the contactor accessory 100 is provided flush with the outer side wall of the socket 202, which improves the overall aesthetics. Optionally, the socket 202 of the contactor 200 is provided on one side of the contactor 200, and the socket 202 and the base 204 of the contactor 200 are spaced to form a mounting groove 201. When the contactor accessory 100 is installed on the contactor 200, the part of the accessory housing 1 without the receiving groove 18 is placed in the mounting groove 201.

[0067] Further optionally, one side of the accessory shell 1 is in a convex shape, and along the height direction, the upper and lower parts of the accessory shell 1 are recessed, the recessed part of the upper part of the accessory shell 1 is the accommodating groove 18, and the recessed part of the lower part of the accessory shell 1 is used to accommodate the base 204 of the contactor 200, the first clip 3 is arranged on the recessed side wall of the lower part of the accessory shell 1, and the first clip 3 is engaged with the base 204 of the contactor 200, the second clip 4 is arranged on the recessed side wall of the upper part of the accessory shell 1, and the second clip 4 is engaged with the socket 202 of the contactor 200.

[0068] like Figures 11 to 13As shown, in other embodiments, the length of the accessory housing 1 in the second direction is greater than the length of the socket 202 of the contactor 200 in the second direction, and the accessory housing 1 is provided with a receiving groove 18 for accommodating the socket 202, and the two opposite side walls of the receiving groove 18 are respectively provided with guide slide grooves 181 extending along the second direction, and the guide slide grooves 181 are used for the guide slider 203 on the socket 202 to be plugged. This embodiment increases the size of the accessory housing 1, and thus increases the space of the accommodating cavity 11, which can meet the requirement that the accommodating cavity 11 can accommodate a large circuit board 2 when the functions of the contactor accessory 100 increase. The guide slide groove 181 cooperates with the guide slider 203 to provide guidance for the installation of the contactor accessory 100, thereby improving the efficiency of the installation of the contactor accessory 100. Optionally, the socket 202 of the contactor 200 is arranged on one side of the contactor 200 , and the socket 202 and the base 204 of the contactor 200 are spaced apart to form a mounting groove 201 . When the contactor accessory 100 is installed on the contactor 200 , the accessory housing 1 covers the socket 202 .

[0069] Further optionally, along the height direction, one side of the lower portion of the accessory housing 1 is recessed to accommodate the base 204 of the contactor 200, the first clamping member 3 is disposed on the side wall of the lower portion of the accessory housing 1, and the first clamping member 3 is clamped with the base 204 of the contactor 200. One side of the upper portion of the accessory housing 1 is partially recessed to form an accommodating groove 18, the second clamping member 4 is disposed at the bottom of the accommodating groove 18, and the second clamping member 4 is clamped with the socket 202 of the contactor 200.

[0070] The above-mentioned socket 202 is provided with a plug port 205, and the plug port 205 is arranged one-to-one with the first terminal block 21 of the contactor accessory 100. When the contactor accessory 100 is installed on the contactor 200, the first terminal block 21 is simultaneously plugged into the plug port 205 of the socket 202, thereby realizing the conductive connection between the contactor accessory 100 and the contactor 200.

[0071] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Contactor accessory, characterized in that, include: An accessory housing (1), the accessory housing (1) being provided with a receiving cavity (11) and at least two wiring cavities (12), the wiring cavities (12) being in communication with the receiving cavity (11); A circuit board (2) is arranged in the accommodating cavity (11), and at least two first wiring boards (21) and at least two second wiring boards (22) are provided on the circuit board (2), and the second wiring boards (22) are electrically connected to the first wiring boards (21) through the circuit of the circuit board (2), and the first wiring board (21) is used to be electrically connected to the contactor (200), and the second wiring board (22) is arranged in the wiring cavity (12), and the second wiring board (22) is used to be electrically connected to a conductive member introduced into the wiring cavity (12).

2. The contactor accessory according to claim 1, characterized in that: At least two interface seats (13) are provided at intervals on one side of the accessory housing (1), each of the interface seats (13) is provided with the wiring cavity (12), the wiring cavity (12) has a cavity opening, a cover plate (14) is provided at the cavity opening, the cover plate (14) is provided with a wiring port (141) connected to the wiring cavity (12), the cover plate (14) is provided with an abutment plate (142), a support portion (15) is provided in the wiring cavity (12), the abutment plate (142) presses the second wiring board (22) against the support portion (15), and the wiring port (141) is provided corresponding to the end of the second wiring board (22).

3. The contactor accessory according to claim 2, characterized in that: The cavity opening is an L-shaped structure, the cover plate (14) matches the shape of the cavity opening, one end of the cover plate (14) is snap-fitted to the accessory housing (1), the other end of the cover plate (14) is plugged into the interface seat (13), and the cover plate (14) is pressed against at least a portion of the end surface of the second wiring board (22) along a first direction.

4. The contactor accessory according to claim 1, characterized in that: The accessory housing (1) comprises a housing base (16) and a housing cover (17); the housing base (16) is provided with the accommodating cavity (11); one side of the accommodating cavity (11) is open; the housing cover (17) is connected to the housing base (16) and closes the opening; a first support member (161) is provided at the bottom along the height direction of the housing base (16); a second support member (171) is provided on the housing cover (17); the second support member (171) is connected to the first support member (161); and the first support member (161) supports the second support member (171) upward in the height direction.

5. The contactor accessory according to claim 4, characterized in that: The first support member (161) comprises a first protrusion, the second support member (171) comprises a second protrusion, the second protrusion is provided with an insertion groove (172) along a first direction, the first protrusion is inserted into the insertion groove (172), and the end of the second protrusion is pressed against the circuit board (2).

6. The contactor accessory according to claim 4, characterized in that: A limiting groove (162) corresponding to the first terminal block (21) is provided at the top of the housing base (16) along the height direction, and the first terminal block (21) passes through the limiting groove (162) along the height direction. A limiting plate (173) corresponding to the limiting groove (162) is provided on the housing cover (17), and the limiting plate (173) is inserted into the limiting groove (162), and the limiting plate (173) presses the first terminal block (21) in the limiting groove (162) along the first direction.

7. The contactor accessory according to claim 4, characterized in that: A first guide column (163) is provided in one of the housing base (16) and the housing cover (17), and a guide hole (164) is provided on the first guide column (163) along a first direction; a second guide column (174) is provided in the other of the housing base (16) and the housing cover (17), and the second guide column (174) is inserted into the guide hole (164); and a first avoidance groove (23) for avoiding the first guide column (163) or the second guide column (174) is provided on the circuit board (2).

8. The contactor accessory according to claim 4, characterized in that: The two opposite sides of the housing base (16) are respectively inwardly recessed to form a clamping groove (165), and a clamping block (166) is provided in the clamping groove (165). The housing cover (17) is provided with a clamping plate (175) corresponding to the clamping groove (165), and a clamping hole (176) is provided on the clamping plate (175). The clamping plate (175) is placed in the clamping groove (165), and the clamping block (166) is clamped in the clamping hole (176). The circuit board (2) is provided with a second avoidance groove (24) for accommodating the recessed portion of the housing base (16).

9. The contactor accessory according to any one of claims 1 to 8, characterized in that: The accessory housing (1) is provided with a first clamping member (3) and a second clamping member (4) at the bottom and the top in the height direction, respectively; the first clamping member (3) and the second clamping member (4) are respectively used for clamping with the contactor (200), and the first clamping member (3) and the second clamping member (4) can be limited in the installation groove (201) of the contactor (200).

10. The contactor accessory according to any one of claims 1 to 8, characterized in that: The length of the accessory housing (1) in the second direction is the same as the length of the socket (202) of the contactor (200) in the second direction. The accessory housing (1) is provided with a receiving groove (18) for receiving the socket (202), and the receiving groove (18) is through-set on both sides in the second direction.

11. The contactor accessory according to any one of claims 1 to 8, characterized in that: The length of the accessory housing (1) in the second direction is greater than the length of the socket (202) of the contactor (200) in the second direction. The accessory housing (1) is provided with a receiving groove (18) for accommodating the socket (202). The two opposite side walls of the receiving groove (18) are respectively provided with guide grooves (181) extending along the second direction. The guide grooves (181) are used for plugging the guide slider (203) on the socket (202).

12. The contactor accessory according to any one of claims 1 to 8, characterized in that: The circuit of the circuit board (2) comprises one or more of a first circuit for reducing power consumption, a second circuit for AC / DC conversion, and a third circuit for wide voltage.

13. A contactor system, characterized in that The invention comprises a contactor (200) and a contactor accessory (100) according to any one of claims 1 to 12, wherein the contactor accessory (100) is detachably connected to the contactor (200).

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