Contactor

Abstract

The invention discloses a contactor, which comprises an upper insulating shell, a lower insulating shell and a connecting piece, the pair of static contacts are fixed on the upper insulating shell and extend into the arc extinguish chamber; the moving contact is movably arranged in the arc extinguish chamber and can move between a closing position electrically contacted with the static contact and an opening position electrically separated from the static contact; the driving assembly is movably arranged in the arc extinguish chamber and is used for driving the moving contact to move between a closing position and an opening position; the insulating bracket is mounted in the arc extinguish chamber of the upper insulating shell and forms an accommodating cavity isolated from the arc extinguish chamber; and the microswitch is arranged in the accommodating cavity of the insulating bracket. The driving assembly is provided with a pressing part, the microswitch is pressed down by the pressing part when the moving contact is moved to the closed position, and the microswitch is not in contact with the pressing part when the moving contact is moved to the open position. According to the invention, the microswitch is convenient to assemble, high in impact resistance and stable in signal, the assembling efficiency of the contactor can be improved, and the manufacturing cost of the contactor can be reduced.

Description

Technical Field

[0001] This invention relates to a contactor, and more particularly to an air-type high-voltage DC contactor. Background Technology

[0002] In existing technologies, high-voltage DC auxiliary contact structures mostly employ reed or reed switch designs. The advantage of reed-type high-voltage DC auxiliary contact structures is that the reed travel can be customized according to the contactor's stroke. The disadvantages are high requirements for the reed material and structure, and the contacts being exposed to the arc-extinguishing cavity, making them prone to contamination. Furthermore, the auxiliary signal is transferred to the external connector via adapter terminals and two solder points. This necessitates soldering the stationary contact onto ceramic, connecting it to the external connector via soldering and adapter terminals, resulting in a complex assembly process and relatively high costs.

[0003] In existing technologies, the advantages of reed switch-type high-voltage DC auxiliary contact structures include non-contact signal control and sealed auxiliary contacts. The disadvantages include complex assembly requiring very high installation precision, susceptibility to strong external magnetic interference, and poor contact impact resistance. Furthermore, welding wires to the reed switch and then leading them out through a sheath makes automation difficult, increases assembly costs, and makes use inconvenient. Summary of the Invention

[0004] The purpose of this invention is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0005] According to one aspect of the present invention, a contactor is provided. The contactor includes: an upper insulating shell having an arc-extinguishing chamber formed therein; a pair of stationary contacts fixed to the upper insulating shell and extending into the arc-extinguishing chamber; a moving contact movably disposed in the arc-extinguishing chamber, movable between a closed position electrically contacting the stationary contacts and an open position electrically disconnected from the stationary contacts; a drive assembly movably disposed in the arc-extinguishing chamber for driving the moving contact to move between the closed position and the open position; an insulating support mounted in the arc-extinguishing chamber of the upper insulating shell and forming a receiving cavity isolated from the arc-extinguishing chamber; and a micro switch mounted in the receiving cavity of the insulating support. The drive assembly has a pressing portion for pressing the micro switch, the micro switch being pressed by the pressing portion when the moving contact is moved to the closed position, and not contacting the pressing portion when the moving contact is moved to the open position.

[0006] According to an exemplary embodiment of the present invention, the micro switch is a normally open switch, and when the micro switch is pressed by the pressing part of the driving component, the micro switch switches from an open state to a closed state.

[0007] According to another exemplary embodiment of the present invention, the micro switch is a normally closed switch, and when the micro switch is pressed by the pressing part of the driving component, the micro switch switches from a closed state to an open state.

[0008] According to another exemplary embodiment of the present invention, the receiving cavity of the insulating bracket has a mounting port facing the side wall of the upper insulating shell, the micro switch is mounted into the receiving cavity of the insulating bracket via the mounting port, and the mounting port of the receiving cavity is sealed by the side wall of the upper insulating shell.

[0009] According to another exemplary embodiment of the present invention, the contactor further includes: a pair of adapter terminals disposed in the insulating bracket and electrically connected to two connection terminals of the micro switch respectively.

[0010] According to another exemplary embodiment of the present invention, the insulating support is an injection molded part on the pair of adapter terminals, such that the insulating support and the pair of adapter terminals are integral.

[0011] According to another exemplary embodiment of the invention, the adapter terminal has a first tongue at one end thereto, and the connection terminal of the micro switch has a pair of first spring arms, the first tongue being inserted into and held between the pair of first spring arms.

[0012] According to another exemplary embodiment of the present invention, the adapter terminal has a solder pad at one end thereto, the connection terminal of the micro switch is needle-shaped, and the connection terminal of the micro switch passes through the solder pad and is soldered to the solder pad.

[0013] According to another exemplary embodiment of the present invention, the contactor further includes a pair of first lead-out terminals, each electrically connected to the other end of the pair of adapter terminals.

[0014] According to another exemplary embodiment of the invention, the adapter terminal has a pair of second spring arms at its other end, and the first lead-out terminal has a second tongue at one end, the second tongue being inserted and held between the pair of second spring arms.

[0015] According to another exemplary embodiment of the invention, the first lead-out terminal has a first pin at its other end, the first pin being used for electrical connection to a connector.

[0016] According to another exemplary embodiment of the present invention, the contactor further includes: a lower insulating shell assembled together with the upper insulating shell; a coil frame disposed in the lower insulating shell; a coil wound on the coil frame; and a pair of second leads electrically connected to two terminals of the coil, respectively, wherein the coil frame is an injection molded part injection molded onto the pair of first leads and the pair of second leads, such that the coil frame, the pair of first leads, and the pair of second leads are integrally formed.

[0017] According to another exemplary embodiment of the present invention, the second lead terminal has a second pin, and the coil bobbin also has a mating portion in which a slot is formed, wherein the first pin and the second pin extend into the slot for electrical connection with a connector inserted into the slot.

[0018] According to another exemplary embodiment of the present invention, the contactor further includes: a lower insulating shell assembled together with the upper insulating shell; a coil frame disposed in the lower insulating shell; a coil wound on the coil frame; a pair of second leads electrically connected to two terminals of the coil, respectively; and a retainer holding the pair of first leads and mounted on the coil frame, the retainer being an injection molded part molded onto the pair of first leads such that the retainer and the pair of first leads are integral, and the coil frame being an injection molded part molded onto the pair of second leads such that the coil frame and the pair of second leads are integral.

[0019] According to another exemplary embodiment of the present invention, a protruding post is formed on the top of the coil frame, and a mounting hole is formed on the retainer. The protruding post is inserted into the mounting hole in an interference fit manner to fix the retainer on the top of the coil frame.

[0020] According to another exemplary embodiment of the invention, the contactor further includes: a mating portion having a slot and being assembled onto the coil frame, the second lead terminal having a second pin, the first pin and the second pin extending into the slot of the mating portion for electrical connection with a connector inserted into the slot.

[0021] According to another exemplary embodiment of the present invention, the drive assembly includes: an insulating seat; a drive shaft located below the insulating seat and fixed to the insulating seat; a limiting frame located above the insulating seat and fixed to the insulating seat; and a spring mounted in the limiting frame and axially compressed between the moving contact and the insulating seat, wherein the pressing portion is formed on the insulating seat and extends into the receiving cavity of the insulating support.

[0022] According to another exemplary embodiment of the present invention, the insulating seat is an injection molded part that is injection molded on the bottom of the limiting frame and the upper end of the drive shaft, such that the insulating seat, the limiting frame and the drive shaft are integrated into one piece.

[0023] In the foregoing exemplary embodiments of the present invention, the micro switch is easy to assemble, has strong shock resistance, and provides a stable signal, thereby improving the assembly efficiency of the contactor and reducing the manufacturing cost of the contactor.

[0024] Other objects and advantages of the invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0025] Figure 1 A perspective view showing the upper half of a contactor according to an exemplary embodiment of the present invention;

[0026] Figure 2 An exploded view of the upper half of a contactor according to an exemplary embodiment of the present invention is shown.

[0027] Figure 3 Showing an assembled cross-sectional view of the upper half of a contactor according to an exemplary embodiment of the present invention;

[0028] Figure 4 Showing a cutaway view of the upper half of a contactor according to an exemplary embodiment of the present invention;

[0029] Figure 5 A perspective view of the insulating support of a contactor and a micro switch according to an exemplary embodiment of the present invention is shown.

[0030] Figure 6 A perspective view showing a micro switch and adapter terminal of a contactor according to an exemplary embodiment of the present invention;

[0031] Figure 7 An exploded view of the micro switch and adapter terminal of a contactor according to an exemplary embodiment of the present invention is shown.

[0032] Figure 8 A perspective view of a micro switch and coil assembly of a contactor according to an exemplary embodiment of the present invention is shown.

[0033] Figure 9 A perspective view of a contactor according to an exemplary embodiment of the present invention, showing a micro switch, coil, adapter terminal, first lead terminal and second lead terminal;

[0034] Figure 10This diagram shows an assembly schematic of the micro switch and coil assembly of a contactor according to another exemplary embodiment of the present invention;

[0035] Figure 11 A perspective view showing a micro switch, adapter terminal, first lead-out terminal, and second lead-out terminal of a contactor according to another exemplary embodiment of the present invention;

[0036] Figure 12 An exploded schematic diagram showing the micro switch and coil assembly of a contactor according to another exemplary embodiment of the present invention. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof.

[0038] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0039] According to a general technical concept of the present invention, a contactor is provided. The contactor includes: an upper insulating shell forming an arc-extinguishing chamber; a pair of stationary contacts fixed to the upper insulating shell and extending into the arc-extinguishing chamber; a moving contact movably disposed in the arc-extinguishing chamber, movable between a closed position electrically contacting the stationary contacts and an open position electrically disconnected from the stationary contacts; a drive assembly movably disposed in the arc-extinguishing chamber for driving the moving contact to move between the closed position and the open position; an insulating support mounted in the arc-extinguishing chamber of the upper insulating shell and forming a receiving cavity isolated from the arc-extinguishing chamber; and a micro switch mounted in the receiving cavity of the insulating support. The drive assembly has a pressing portion for pressing the micro switch, the micro switch being pressed by the pressing portion when the moving contact is moved to the closed position, and not contacting the pressing portion when the moving contact is moved to the open position.

[0040] Figure 1 A perspective view showing the upper half of a contactor according to an exemplary embodiment of the present invention; Figure 2 An exploded view of the upper half of a contactor according to an exemplary embodiment of the present invention is shown. Figure 3 Showing an assembled cross-sectional view of the upper half of a contactor according to an exemplary embodiment of the present invention; Figure 4 Showing a cutaway view of the upper half of a contactor according to an exemplary embodiment of the present invention; Figure 5 A perspective view of the insulating support 5 and micro switch 6 of a contactor according to an exemplary embodiment of the present invention is shown. Figure 6 A perspective view of a micro switch 6 and an adapter terminal 7 of a contactor according to an exemplary embodiment of the present invention is shown. Figure 7 An exploded view of the micro switch 6 and the adapter terminal 7 of a contactor according to an exemplary embodiment of the present invention is shown. Figure 8 A perspective view of a micro switch 6 and a coil assembly of a contactor according to an exemplary embodiment of the present invention is shown. Figure 9 A perspective view showing a micro switch 6, coil 30, adapter terminal 7, first lead-out terminal 8 and second lead-out terminal 9 of a contactor according to an exemplary embodiment of the present invention.

[0041] like Figures 1 to 9 As shown, in an exemplary embodiment of the present invention, a contactor is disclosed. The contactor includes: an upper insulating shell 1, a pair of stationary contacts 2, a moving contact 3, a drive assembly 4, an insulating support 5, and a micro switch 6. An arc-extinguishing chamber 10 is formed in the upper insulating shell 1. The pair of stationary contacts 2 are fixed to the upper insulating shell 1 and extend into the arc-extinguishing chamber 10. The moving contact 3 is movably disposed in the arc-extinguishing chamber 10 and is movable between a closed position electrically contacting the stationary contacts 2 and an open position electrically disconnected from the stationary contacts 2. The drive assembly 4 is movably disposed in the arc-extinguishing chamber 10 for driving the moving contact 3 to move between the closed and open positions. The insulating support 5 is mounted in the arc-extinguishing chamber 10 of the upper insulating shell 1 and forms a receiving cavity 50 isolated from the arc-extinguishing chamber 10. The micro switch 6 is mounted in the receiving cavity 50 of the insulating support 5. The drive assembly 4 has a pressing part 41a for pressing the micro switch 6. The micro switch 6 is pressed by the pressing part 41a when the moving contact 3 is moved to the closed position, and is not in contact with the pressing part 41a when the moving contact 3 is moved to the open position.

[0042] like Figures 1 to 9 As shown, in an exemplary embodiment of the present invention, the micro switch 6 is a normally open switch. When the micro switch 6 is pressed by the pressing part 41a, the micro switch 6 switches from the open state to the closed state.

[0043] like Figures 1 to 9 As shown, in another exemplary embodiment of the present invention, the micro switch 6 is a normally closed switch. When the micro switch 6 is pressed by the pressing part 41a, the micro switch 6 switches from the closed state to the open state.

[0044] like Figures 1 to 9As shown in the illustrated embodiment, the receiving cavity 50 of the insulating bracket 5 has a mounting port facing the side wall 11 of the upper insulating shell 1. The micro switch 6 is installed into the receiving cavity 50 of the insulating bracket 5 through the mounting port, and the mounting port of the receiving cavity 50 is covered by the side wall 11 of the upper insulating shell 1.

[0045] like Figures 1 to 9 As shown, in the illustrated embodiment, the contactor further includes a pair of adapter terminals 7, which are disposed in the insulating bracket 5 and electrically connected to the two connection terminals 61 of the micro switch 6, respectively.

[0046] like Figures 1 to 9 As shown in the illustrated embodiment, the insulating bracket 5 is an injection molded part that is injection molded onto a pair of adapter terminals 7, so that the insulating bracket 5 and the pair of adapter terminals 7 are integrated into one piece.

[0047] like Figures 1 to 9 As shown, in the illustrated embodiment, the adapter terminal 7 has a first tongue 71 at one end, and the connection terminal 61 of the micro switch 6 has a pair of first spring arms 61a, with the first tongue 71 being inserted into and held between the pair of first spring arms 61a.

[0048] like Figures 1 to 9 As shown, in the illustrated embodiment, the contactor further includes a pair of first leads 8, which are electrically connected to the other end of a pair of adapter terminals 7.

[0049] like Figures 1 to 9 As shown, in the illustrated embodiment, the adapter terminal 7 has a pair of second spring arms 72 at its other end, and the first lead-out terminal 8 has a second tongue 81 at one end, which is inserted into and held between the pair of second spring arms 72.

[0050] like Figures 1 to 9 As shown, in the illustrated embodiment, the first lead-out terminal 8 has a first pin 82 located at its other end, the first pin 82 being used for electrical connection to a connector (not shown).

[0051] like Figures 1 to 9 As shown in the illustrated embodiment, the contactor further includes: a lower insulating shell (not shown), a coil frame 20, a coil 30, and a pair of second leads 9. The lower insulating shell is assembled with the upper insulating shell 1. The coil frame 20 is disposed within the lower insulating shell. The coil 30 is wound around the coil frame 20. The pair of second leads 9 are electrically connected to the two terminals 30a of the coil 30, respectively. The coil frame 20 is an injection-molded part onto a pair of first leads 8 and a pair of second leads 9, such that the coil frame 20, the pair of first leads 8, and the pair of second leads 9 are integrally formed.

[0052] like Figures 1 to 9As shown, in the illustrated embodiment, the second lead terminal 9 has a second pin 92, and the coil frame 20 also has a mating portion 21 in which a slot 201 is formed. The first pin 82 and the second pin 92 extend into the slot 201 to be electrically connected to a connector inserted into the slot 201.

[0053] like Figures 1 to 9 As shown in the illustrated embodiment, the drive assembly 4 includes an insulating base 41, a drive shaft 42, a limiting bracket 43, and a spring 44. The drive shaft 42 is located below the insulating base 41 and is fixed to the insulating base 41. The limiting bracket 43 is located above the insulating base 41 and is fixed to the insulating base 41. The spring 44 is mounted in the limiting bracket 43 and is axially compressed between the moving contact 3 and the insulating base 41. A pressing part 41a is formed on the insulating base 41 and extends into the receiving cavity 50 of the insulating support 5.

[0054] like Figures 1 to 9 As shown in the illustrated embodiment, the insulating seat 41 is an injection molded part that is injection molded on the bottom of the limiting frame 43 and the upper end of the drive shaft 42, so that the insulating seat 41, the limiting frame 43 and the drive shaft 42 are integrated into one piece.

[0055] Figure 10 This diagram shows an assembly schematic of the micro switch 6 and coil assembly of a contactor according to another exemplary embodiment of the present invention; Figure 11 A perspective view showing a micro switch 6, a transfer terminal 7, a first lead-out terminal 8, and a second lead-out terminal 9 of a contactor according to another exemplary embodiment of the present invention; Figure 12 An exploded schematic diagram showing the micro switch 6 and coil assembly of a contactor according to another exemplary embodiment of the present invention.

[0056] Figures 10 to 12 The contactor shown is Figures 1 to 9 The difference between the contactors shown lies in the different structures of the connection terminal 61, the adapter terminal 7, and the coil assembly of the micro switch 6.

[0057] like Figures 10 to 12 As shown, in the illustrated embodiment, the adapter terminal 7 has a solder tab 71' at one end, and the connection terminal 61 of the micro switch 6 is needle-shaped, passing through the solder tab 71' and being soldered to the solder tab 71'.

[0058] like Figures 10 to 12As shown, in the illustrated embodiment, the contactor further includes: a lower insulating shell (not shown), a coil frame 20, a coil 30, a pair of second leads 9, and a retainer 80. The lower insulating shell is assembled with the upper insulating shell 1. The coil frame 20 is disposed within the lower insulating shell. The coil 30 is wound around the coil frame 20. The pair of second leads 9 are electrically connected to two terminals 30a of the coil 30, respectively. The retainer 80 holds the pair of first leads 8 and is detachably mounted to the coil frame 20. The retainer 80 is an injection-molded part onto the pair of first leads 8, such that the retainer 80 and the pair of first leads 8 are integral. The coil frame 20 is an injection-molded part onto the pair of second leads 9, such that the coil frame 20 and the pair of second leads 9 are integral.

[0059] like Figures 10 to 12 As shown in the illustrated embodiment, a protruding post 20a is formed on the top of the coil frame 20, and a mounting hole 80a is formed on the retainer 80. The protruding post 20a is inserted into the mounting hole 80a in an interference fit manner to fix the retainer 80 on the top of the coil frame 20.

[0060] like Figures 10 to 12 As shown in the illustrated embodiment, the contactor further includes a mating portion 21 in which a slot 201 is formed. The mating portion 21 is detachably assembled to the coil frame 20. A second lead-out terminal 9 has a second pin 92, and the first pin 82 and the second pin 92 extend into the slot 201 of the mating portion 21 for electrical connection with a connector inserted into the slot 201.

[0061] In addition to the differences mentioned above Figures 10 to 12 Other technical features of the contactor shown are similar to Figures 1 to 9 The contactors shown are basically the same and can be used as a reference. Figures 1 to 9 The contactor shown.

[0062] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this invention.

[0063] Although the invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the invention and should not be construed as limiting the invention.

[0064] While some embodiments of the general concept of the invention have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of the invention, the scope of which is defined by the claims and their equivalents.

[0065] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of the invention.

Claims

1. A contactor characterized by, Comprising: an upper insulating shell (1) formed with an arc-extinguishing chamber (10); a pair of stationary contacts (2) fixed to the upper insulating shell (1) and extending into the arc-extinguishing chamber (10); a movable contact (3) movably arranged in the arc-extinguishing chamber (10) and capable of moving between a closed position in electrical contact with the stationary contacts (2) and an open position electrically separated from the stationary contacts (2); a drive assembly (4) movably arranged in the arc-extinguishing chamber (10) for driving the movable contact (3) to move between the closed position and the open position; an insulating support (5) mounted into the arc-extinguishing chamber (10) of the upper insulating shell (1) and formed with a containing cavity (50) isolated from the arc-extinguishing chamber (10); and a micro switch (6) mounted in the containing cavity (50) of the insulating support (5), the drive assembly (4) has a pressing portion (41a) for pressing the micro switch (6), the micro switch (6) is pressed by the pressing portion (41a) when the movable contact (3) is moved to the closed position, and the micro switch (6) is not in contact with the pressing portion (41a) when the movable contact (3) is moved to the open position.

2. The contactor according to claim 1, wherein: the micro switch (6) is a normally open switch, and the micro switch (6) is switched from an open state to a closed state when the micro switch (6) is pressed by the pressing portion (41a).

3. The contactor according to claim 1, wherein: the micro switch (6) is a normally closed switch, and the micro switch (6) is switched from a closed state to an open state when the micro switch (6) is pressed by the pressing portion (41a).

4. The contactor according to claim 1, wherein: the containing cavity (50) of the insulating support (5) has a mounting opening facing a side wall (11) of the upper insulating shell (1), the micro switch (6) is mounted into the containing cavity (50) of the insulating support (5) via the mounting opening, and the mounting opening of the containing cavity (50) is covered by the side wall (11) of the upper insulating shell (1).

5. The contactor of claim 1, wherein Further comprising: a pair of adapter terminals (7) arranged in the insulating support (5) and respectively electrically connected to two connection terminals (61) of the micro switch (6).

6. The contactor according to claim 5, wherein: the insulating support (5) is an injection molding part injected on the pair of adapter terminals (7), so that the insulating support (5) and the pair of adapter terminals (7) become an integral part.

7. The contactor according to claim 5, wherein: the adapter terminal (7) has a first insertion tongue (71) at one end thereof, the connection terminal (61) of the micro switch (6) has a pair of first elastic arms (61a), and the first insertion tongue (71) is inserted and clamped between the pair of first elastic arms (61a).

8. The contactor according to claim 5, wherein: The adapter terminal (7) has a soldering piece (71') at one end thereof, the connecting terminal (61) of the micro switch (6) is needle-shaped, and the connecting terminal (61) of the micro switch (6) penetrates through the soldering piece (71') and is soldered to the soldering piece (71').

9. The contactor of claim 5, wherein, Further comprising: a pair of first lead-out terminals (8) respectively electrically connected to the other ends of the pair of adapter terminals (7).

10. The contactor according to claim 9, wherein: the adapter terminal (7) has a pair of second elastic arms (72) at the other end thereof, and the first lead-out terminal (8) has a second insertion tongue (81) at one end thereof, the second insertion tongue (81) being inserted and clamped between the pair of second elastic arms (72).

11. The contactor according to claim 10, wherein: the first lead-out terminal (8) has a first lead pin (82) at the other end thereof, and the first lead pin (82) is used for electrical connection to a connector.

12. The contactor of claim 11, wherein, Further comprising: a lower insulating shell assembled with the upper insulating shell (1); a coil former (20) arranged in the lower insulating shell; a coil (30) wound on the coil former (20); and a pair of second lead-out terminals (9) respectively electrically connected to two wire terminals (30a) of the coil (30), the coil former (20) is an injection molding piece injected onto the pair of first lead-out terminals (8) and the pair of second lead-out terminals (9), so that the coil former (20), the pair of first lead-out terminals (8) and the pair of second lead-out terminals (9) are integrated into one piece.

13. The contactor according to claim 12, wherein: the second lead-out terminal (9) has a second lead pin (92), the coil former (20) further has a mating portion (21) in which a slot (201) is formed, and the first lead pin (82) and the second lead pin (92) extend into the slot (201) to be electrically connected to a connector inserted into the slot (201).

14. The contactor of claim 11, wherein, Further comprising: a lower insulating shell assembled with the upper insulating shell (1); a coil former (20) arranged in the lower insulating shell; a coil (30) wound on the coil former (20); a pair of second lead-out terminals (9) respectively electrically connected to two wire terminals (30a) of the coil (30); and a retaining body (80) retaining the pair of first lead-out terminals (8) and mounted on the coil former (20), the retaining body (80) is an injection molding piece injected onto the pair of first lead-out terminals (8), so that the retaining body (80) and the pair of first lead-out terminals (8) are integrated into one piece, the coil former (20) is an injection molding piece injected onto the pair of second lead-out terminals (9), so that the coil former (20) and the pair of second lead-out terminals (9) are integrated into one piece.

15. The contactor according to claim 14, wherein: A protruding column (20a) is formed on the top of the coil former (20), a mounting hole (80a) is formed on the holding body (80), the protruding column (20a) is inserted into the mounting hole (80a) in an interference fit manner, and the holding body (80) is fixed on the top of the coil former (20).

16. The contactor of claim 14, wherein, Further comprising: A mating portion (21) is formed with a slot (201) and assembled to the coil former (20), The second lead terminal (9) has a second pin (92), and the first pin (82) and the second pin (92) extend into the slot (201) of the mating portion (21) to be electrically connected with the connector inserted into the slot (201).

17. The contactor according to any one of claims 1-16, wherein: The drive assembly (4) comprises: An insulating seat (41); A drive shaft (42) located below and fixed to the insulating seat (41); A limiting frame (43) located above and fixed to the insulating seat (41); and A spring (44) installed in the limiting frame (43) and axially compressed between the moving contact (3) and the insulating seat (41), The pressing portion (41a) is formed on the insulating seat (41) and extends into the accommodating cavity (50) of the insulating support (5).

18. The contactor according to claim 17, wherein: The insulating seat (41) is an injection molding part injected on the bottom of the limiting frame (43) and the upper end of the drive shaft (42), so that the insulating seat (41), the limiting frame (43) and the drive shaft (42) are integrated.

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