A contactor and contactor assembly

Abstract

The utility model relates to contactor technical field especially relates to a kind of contactor and contactor assembly, contactor includes shell, connecting piece, movable contact row, static contact row, electromagnetic drive unit and sealing shell, electromagnetic drive unit is installed in installation cavity, connecting piece is worn in first perforation, the outer periphery of connecting piece and the hole inner wall of first perforation contact.Movable contact row includes first connecting part and first adsorption part, connecting piece is connected between electromagnetic drive unit and first connecting part, and movable contact point is equipped on first adsorption part, and static contact row includes second connecting part and second adsorption part, and static contact point is equipped on second adsorption part.Sealing shell and the side of shell towards static contact row form arc-extinguishing chamber, second adsorption part is located in arc-extinguishing chamber, second connecting part is stretched out sealing shell through second perforation, arc-extinguishing fluid is filled in arc-extinguishing chamber, and first adsorption part and second adsorption part are immersed in arc-extinguishing fluid.Arc can be quickly extinguished by arc-extinguishing fluid in arc-extinguishing chamber.

Description

TECHNICAL FIELD

[0001] The utility model relates to contactor technical field especially relates to a contactor and contactor assembly. BACKGROUND

[0002] The contactor is a kind of under the input signal of outside, using electromagnetic force to make contact to open or close, to automatically connect or disconnect the automatic control circuit with load main circuit.

[0003] A kind of contactor of existing, including shell, movable contact row, static contact row, coil and coil framework, coil framework is installed in shell, and it is arranged in the space surrounded by static core inside shell, coil is arranged on coil framework, and through hole is arranged in coil framework, and the lower part of movable contact row is connected with a moving iron core by connecting rod passing through through hole, moving iron core is located below static core, static contact row is arranged above movable contact row, when coil is energized, magnetic field is generated around coil, so that moving iron core is driven movable contact row to rise by connecting rod under the action of magnetic field, so that moving iron core and static core are adsorbed, and the dynamic contact on movable contact row and the static contact on static contact row are contacted, to realize the conduction of circuit.

[0004] However, the existing contactor, dynamic contact and static contact attract or disconnect easily produce arc, spark, affect the conduction effect between dynamic contact and static contact. SUMMARY

[0005] The utility model embodiment provides a kind of contactor and contactor assembly, to solve the problem that the existing contactor, dynamic contact and static contact attract or disconnect easily produce arc, spark, affect the conduction effect between dynamic contact and static contact.

[0006] To solve the above problems, the utility model embodiment provides a kind of contactor, including shell, connecting piece, movable contact row, static contact row, electromagnetic drive unit and sealing shell, installation cavity is equipped in the shell, the electromagnetic drive unit is installed in the installation cavity, the first perforation that is communicated with the installation cavity is equipped on the shell, the connecting piece is worn in the first perforation, and the outer circumferential surface of the connecting piece is in contact with the hole inner wall of the first perforation; The movable contact row includes first connecting part and first adsorption part, the connecting piece is connected between the electromagnetic drive unit and the first connecting part, and the first adsorption part is equipped with dynamic contact, and the static contact row includes second connecting part and second adsorption part, and the second adsorption part is equipped with static contact; The sealing shell is connected to one side of the housing facing the static contact bar, and the sealing shell and the side of the housing facing the static contact bar enclose an arc extinguishing chamber, the sealing shell is provided with a second through hole communicating with the arc extinguishing chamber, the second adsorption part is located in the arc extinguishing chamber, the second connecting part extends out of the sealing shell through the second through hole, the arc extinguishing chamber is filled with arc extinguishing fluid, and the first adsorption part and the second adsorption part are immersed in the arc extinguishing fluid.

[0007] Optionally, the arc extinguishing fluid is an inert gas.

[0008] Optionally, the sealing shell is a ceramic shell.

[0009] Optionally, the contactor further comprises a permanent magnet plate, and the permanent magnet plate is located outside the sealing shell.

[0010] Optionally, the contactor further comprises a permanent magnet plate, and the permanent magnet plate is located outside the sealing shell.

[0011] Optionally, the contactor further comprises a housing, and the housing is sleeved on the sealing shell, and the permanent magnet plate is clamped between the housing and the sealing shell.

[0012] Optionally, the sealing shell is provided with a top limiting block and a bottom limiting block, and the permanent magnet plate is clamped between the top limiting block and the bottom limiting block.

[0013] According to the contactor provided in the embodiment of the utility model, the moving contact and the static contact are attracted or disconnected in the arc extinguishing chamber, and the arc generated when the moving contact is attracted or disconnected from the static contact can be quickly extinguished by the arc extinguishing fluid in the arc extinguishing chamber, so that the conduction effect between the moving contact and the static contact is avoided.

[0014] The embodiment of the utility model further provides a contactor assembly which comprises a box body and the above-mentioned contactor, the contactor is provided with two, and the two contactors are a main positive contactor and a main negative contactor respectively, the box body is provided with a first chamber and a second chamber which are spaced apart, the main positive contactor is installed in the first chamber, the box body is provided with a third through hole which communicates with the first chamber, the second connecting part of the main positive contactor extends out of the box body through the third through hole, the main negative contactor is installed in the second chamber, the box body is provided with a fourth through hole which communicates with the second chamber, and the second connecting part of the main negative contactor extends out of the box body through the fourth through hole.

[0015] Optionally, the contactor assembly further comprises a box cover, the box cover is detachably connected to the box body, and the box body blocks the first chamber and the second chamber.

[0016] Optionally, a containing groove is arranged on one side of the box body towards the box cover, a conductive column is arranged on the groove bottom wall of the containing groove, a conductive hole is arranged on the second connecting part, the second connecting part is installed into the containing groove, the conductive column is arranged in the conductive hole, and the outer circumferential surface of the conductive column is in contact with the hole inner wall of the conductive hole. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 The assembly schematic view of the contactor and the conductive column provided by an embodiment of the present application is shown in Fig. 1. Figure 2 The structure schematic view of the contactor in Fig. 1 without the shell is shown in Fig. 2. Figure 1 The structure schematic view of the contactor in Fig. 1 without the permanent magnet plate and the sealing shell is shown in Fig. 3. Figure 3 The internal structure schematic view of the contactor in Fig. 1 is shown in Fig. 4. Figure 2 The assembly schematic view of the sealing shell and the upper cover is shown in Fig. 5. Figure 4 The structure schematic view of the first part in Fig. 1 is shown in Fig. 6. Figure 1 The assembly schematic view of the connecting piece and the support frame in Fig. 1 is shown in Fig. 7. Figure 5 The assembly schematic view of the connecting piece and the support frame in Fig. 1 is shown in Fig. 7. Figure 6 The structure schematic view of the support frame in Fig. 1 is shown in Fig. 8. Figure 5 The structure schematic view of the support frame in Fig. 1 is shown in Fig. 8. Figure 7 Figure 4 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 8 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 3 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 9 Figure 7 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 10 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 11 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 10 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 12 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9. Figure 10 The structure schematic view of the contactor assembly provided by an embodiment of the present application is shown in Fig. 9.

[0019] ​​Description of the figure: 1, shell; 2, shell; 3, permanent magnet plate; 4, sealed shell; 5, moving contact row; 6, first connecting part; 7, first adsorption part; 8, moving contact; 9, static contact row; 10, second connecting part; 11, second adsorption part; 12, static contact; 13, connecting piece; 14, support frame; 15, coil skeleton; 16, coil; 17, static core; 18, moving core; 19, first perforation; 20, upper cover; 21, second perforation; 22, first part; 23, second part; 24, top limit block; 25, bottom limit block; 26, box; 27, box cover; 28, third perforation; 29, fourth perforation; 30, main positive contactor; 31, main negative contactor; 32, first cavity; 33, second cavity; 34, containing groove; 35, conductive column; 36, connecting column; 37, connecting plate; 38, intermediate plate; 39, guide hole; 40, limiting step; 41, limiting groove; 42, support groove; 43, support hole; 44, spring mounting groove; 45, clamping groove; 46, limiting plate. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0021] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As shown in Figures 1 to 9 The utility model embodiment provides a kind of contactor, including shell 1, connecting piece 13, moving contact row 5, static contact row 9, electromagnetic drive unit and sealed shell 4, installation cavity is equipped in shell 1, electromagnetic drive unit is installed in installation cavity, first perforation 19 that is communicated with installation cavity is equipped on shell 1, connecting piece 13 is worn in first perforation 19, the outer circumferential surface of connecting piece 13 and the hole inner wall of first perforation 19 contact.

[0023] Moving contact row 5 includes first connecting part 6 and first adsorption part 7, connecting piece 13 is connected between electromagnetic drive unit and first connecting part 6, and moving contact 8 is provided on first adsorption part 7, and static contact row 9 includes second connecting part 10 and second adsorption part 11, and static contact 12 is provided on second adsorption part 11.

[0024] The sealing shell 4 is connected to the side of the housing 1 facing the static contact row 9, and the sealing shell 4 and the side of the housing 1 facing the static contact row 9 form an arc extinguishing chamber. The sealing shell 4 is provided with a second through hole 21 communicating with the arc extinguishing chamber. The second adsorption part 11 is located in the arc extinguishing chamber. The second connecting part 10 extends out of the sealing shell 4 through the second through hole 21. The arc extinguishing chamber is filled with arc extinguishing fluid. The first adsorption part 7 and the second adsorption part 11 are immersed in the arc extinguishing fluid.

[0025] In this embodiment, the moving contact 8 and the static contact 12 are attracted or disconnected in the arc extinguishing chamber. The arc generated when the moving contact 8 is attracted or disconnected from the static contact 12 can be quickly extinguished by the arc extinguishing fluid in the arc extinguishing chamber, thereby avoiding affecting the conduction effect between the moving contact 8 and the static contact 12.

[0026] In this embodiment, the electromagnetic drive unit includes a coil 16, a coil frame 15, a moving iron core 18, a static iron core 17, and a counterforce spring. The coil frame 15 is fixedly installed in the mounting cavity. The static iron core 17 is arranged around the coil frame 15. The coil 16 is wound around the coil frame 15. The coil frame 15 is internally provided with a through hole for the connecting piece 13 to pass through in the first direction. The connecting piece 13 is connected between the first connecting part 6 of the moving contact row 5 and the moving iron core 18. The counterforce spring is located between the moving iron core 18 and the coil frame 15.

[0027] In this embodiment, when the coil 16 is energized, an induced magnetic field is generated around the coil 16. Under the drive of the induced magnetic field, the moving iron core 18 drives the connecting piece 13 and the moving contact row 5 to rise, so that the moving iron core 18 is attracted to the static iron core 17, the moving contact 8 is attracted to the static contact 12, and the two electrical devices at both ends of the second connecting part 10 connecting the static contact row 9 are electrically connected. At this time, the counterforce spring is compressed. When the coil 16 is de-energized, the induced magnetic field disappears. Under the action of the counterforce spring, the moving iron core 18 drives the connecting piece 13 and the moving contact row 6 to descend, so that the moving contact 8 is disconnected from the static contact 12, and the moving iron core 18 is separated from the static iron core 17.

[0028] In this embodiment, the electromagnetic drive unit is a prior art, which will not be described here.

[0029] In this embodiment, the moving contact 8 and the static contact 12 are located in the arc extinguishing fluid. When an arc is generated, the arc extinguishing fluid rapidly cools the arc and blocks the energy supply of the arc, thereby extinguishing the arc.

[0030] In an embodiment, the arc extinguishing fluid is an inert gas.

[0031] In this embodiment, inert gas is used as the arc extinguishing fluid, which is easier to design and replenish than liquid arc extinguishing fluid.

[0032] In an embodiment, the sealing shell 4 is a ceramic shell.

[0033] In this embodiment, the ceramic shell has excellent insulation, sealing performance and high temperature resistance, which can ensure circuit safety between the static contact bar 9 and the moving contact bar 5 in a high-voltage and high-temperature environment, and avoid electric leakage and air leakage.

[0034] In this embodiment, the bottom of the ceramic shell and the upper side surface of the housing 1 can be fixed by laser welding, and the laser welding can also achieve sealing of the gap between the ceramic shell and the housing 1.

[0035] In one embodiment, the contactor further comprises a permanent magnet plate 3, and the permanent magnet plate 3 is located on the outer side of the sealing shell 4.

[0036] In this embodiment, the magnetic field generated by the permanent magnet plate 3 can blow out the electric arc between the moving contact 8 and the static contact 12, which can increase the arc extinguishing speed.

[0037] In one embodiment, two permanent magnet plates 3 are provided, the two permanent magnet plates 3 are respectively disposed on two opposite sides of the sealing shell 4, and the opposite sides of the two permanent magnet plates 3 have opposite magnetism.

[0038] In this embodiment, the two permanent magnet plates 3 are oppositely arranged on the left and right sides of the sealing shell 4.

[0039] In this embodiment, the opposite sides of the two permanent magnet plates 3 have opposite magnetism, which can form a uniform magnetic field between the two permanent magnet plates 3, and can further increase the arc extinguishing speed.

[0040] In one embodiment, the contactor further comprises an outer shell 2, the outer shell 2 is sleeved on the sealing shell 4, and the permanent magnet plate 3 is sandwiched between the outer shell 2 and the sealing shell 4.

[0041] In this embodiment, the outer shell 2 is sleeved on the outer side surface of the sealing shell 4, so that the permanent magnet plate 3 is sandwiched between the outer shell 2 and the sealing shell 4, which facilitates the fixation of the permanent magnet plate 3.

[0042] In one embodiment, a top limit block 24 and a bottom limit block 25 are protrudingly provided on the outer shell 2, and the permanent magnet plate 3 is sandwiched between the top limit block 24 and the bottom limit block 25.

[0043] In this embodiment, the outer shell 2 includes a first portion 22 and a second portion 23, the first portion 22 and the second portion 23 are disposed opposite to each other, both the first portion 22 and the second portion 23 are in a shape of "几", and the first portion 22 and the second portion 23 are mated to form the outer shell 2.

[0044] In this embodiment, a top limit block 24 and a bottom limit block 25 are arranged at intervals in the up-down direction on the inner side surface of the outer shell 2, and the permanent magnet plate 3 is sandwiched between the top limit block 24 and the bottom limit block 25, which facilitates limiting the permanent magnet plate 3 in the up-down direction.

[0045] In the embodiment, the contactor further comprises an upper cover 20, the top of the sealed shell 4 is provided with an opening, the upper cover 20 is sealed in the opening, and the second through hole 21 is arranged on the upper cover 20.

[0046] In the embodiment, the upper cover 20 is in the shape of "H", the second through hole 21 is arranged on the upper cover 20, and the second connecting part 10 of the static contact row 9 is clamped into the second through hole 21, and the second connecting part 10 seals the second through hole 21.

[0047] In the embodiment, the upper cover 20 is adhered to the sealed shell 4 by epoxy glue to seal the opening.

[0048] In the embodiment, the connecting part 13 comprises a connecting column 36, an intermediate plate 38 and two connecting plates 37, the connecting plates 37 are arranged in the through hole in the up-down direction, the two connecting plates 37 are arranged at intervals, the static iron core 17 is located between the interval of the two connecting plates 37, the upper end of the two connecting plates 37 is connected with the bottom surface of the intermediate plate 38, and the bottom of the connecting column 36 is connected with the top surface of the intermediate plate 38.

[0049] In the embodiment, the connecting part 13 further comprises a support frame 14 arranged on the upper side of the shell 1 and a stop piece (not shown in the figure), the support frame 14 is provided with a support hole 43 penetrating the support frame 14 in the up-down direction, the connecting column 36 penetrates the support hole 43 from bottom to top, the first connecting part 6 is provided with a guide hole 39, the connecting column 36 penetrates the guide hole 39 from bottom to top, in addition, the top end outer circumferential surface of the connecting column 36 is provided with a limiting recess 41, the hole inner wall of the guide hole 39 is provided with a limiting step 40, the stop piece is sleeved on the connecting column 36, and the inner side surface of the stop piece is clamped into the limiting recess 41.

[0050] In the embodiment, the bottom surface of the support frame 14 is provided with a clamping groove 45, and the intermediate plate 38 is clamped into the clamping groove 45.

[0051] In the embodiment, the top of the support frame 14 is provided with a support groove 42, the support hole 43 is arranged on the groove bottom wall of the support groove 42, and the moving contact row 5 is located in the support groove 42.

[0052] In the embodiment, the groove bottom wall of the support groove 42 is provided with a spring mounting groove 44 on both sides of the support hole 43, which is used for mounting a spring, the top of the spring is in contact with the bottom surface of the moving contact row 5, and the bottom of the spring is in contact with the groove bottom wall of the spring mounting groove 44.

[0053] In the embodiment, there is a gap between the limiting step 40 and the stop piece, when the coil 16 is electrified, the connecting plate 37 and the intermediate plate 38 first drive the support frame 14 and the moving contact row 5 to rise and be attracted to the static contact point 12, at this time, the spring is compressed, the spring exerts an upward force on the moving contact row 5, and the stable attraction between the moving contact 8 and the static contact point 12 is ensured.

[0054] In this embodiment, the side of the stop plate facing the support frame 14 and the side of the limiting step 40 facing away from the support frame 14 are blocked to prevent the movable contact plate 5 from disengaging from the connecting post 36.

[0055] In this embodiment, the limiting groove 41 can be formed by the gap between the limiting plate 46 inserted into the top surface of the connecting post 36 and the top surface of the connecting post 36.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] According to the contactor provided in this embodiment of the present invention, the moving contact 8 and the stationary contact 12 are engaged or disengaged in the arc-extinguishing cavity. The electric arc generated when the moving contact 8 is engaged or disengaged in the stationary contact 12 can be quickly extinguished by the arc-extinguishing fluid in the arc-extinguishing cavity, so as to avoid affecting the conductivity between the moving contact 8 and the stationary contact 12.

[0058] In addition, such as Figures 10 to 12 As shown, one embodiment of the present invention also provides a contactor assembly, including a housing 26 and two contactors as described above. The two contactors are a main positive contactor 30 and a main negative contactor 31. The housing 26 has a first chamber 32 and a second chamber 33 spaced apart. The main positive contactor 30 is installed in the first chamber 32. The housing 26 has a third through hole 28 communicating with the first chamber 32. The second connecting part 10 of the main positive contactor 30 extends out of the housing 26 through the third through hole 28. The main negative contactor 31 is installed in the second chamber 33. The housing 26 has a fourth through hole 29 communicating with the second chamber 33. The second connecting part 10 of the main negative contactor 31 extends out of the housing 26 through the fourth through hole 29.

[0059] In one embodiment, the contactor assembly further includes a cover 27, which is detachably connected to a housing 26, and the housing 26 seals the first chamber 32 and the second chamber 33.

[0060] In this embodiment, the lid 27 can be glued to the upper side of the box body 26 with epoxy adhesive.

[0061] In one embodiment, a receiving groove 34 is provided on the side of the box body 26 facing the box cover 27. A conductive post 35 is provided on the bottom wall of the receiving groove 34. A conductive hole is provided on the second connecting part 10. The second connecting part 10 is inserted into the receiving groove 34. The conductive post 35 passes through the conductive hole, and the outer peripheral surface of the conductive post 35 contacts the inner wall of the conductive hole.

[0062] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A contactor, characterized in that, The device includes a housing (1), a connector (13), a moving contact bar (5), a stationary contact bar (9), an electromagnetic drive unit, and a sealing shell (4). The housing (1) has an installation cavity, and the electromagnetic drive unit is installed in the installation cavity. The housing (1) has a first through hole (19) communicating with the installation cavity. The connector (13) passes through the first through hole (19), and the outer peripheral surface of the connector (13) contacts the inner wall of the first through hole (19). The moving contact bar (5) includes a first connecting part (6) and a first adsorption part (7). The connector (13) is connected between the electromagnetic drive unit and the first connecting part (6). The first adsorption part (7) is provided with a moving contact (8). The stationary contact bar (9) includes a second connecting part (10) and a second adsorption part (11). The second adsorption part (11) is provided with a stationary contact (12). The sealing shell (4) is connected to one side of the housing (1) facing the stationary contact bar (9). The sealing shell (4) and the side of the housing (1) facing the stationary contact bar (9) form an arc-extinguishing cavity. The sealing shell (4) is provided with a second perforation (21) communicating with the arc-extinguishing cavity. The second adsorption part (11) is located in the arc-extinguishing cavity. The second connecting part (10) extends out of the sealing shell (4) through the second perforation (21). The arc-extinguishing cavity is filled with arc-extinguishing fluid. The first adsorption part (7) and the second adsorption part (11) are immersed in the arc-extinguishing fluid.

2. The contactor according to claim 1, characterized in that, The arc-extinguishing fluid is an inert gas.

3. The contactor according to claim 1, characterized in that, The sealing shell (4) is a ceramic shell.

4. The contactor according to claim 1, characterized in that, The contactor also includes a permanent magnet plate (3), which is located outside the sealing shell (4).

5. The contactor according to claim 4, characterized in that, There are two permanent magnet plates (3), which are respectively arranged on opposite sides of the sealing shell (4). The magnetism of the two permanent magnet plates (3) on opposite sides is opposite.

6. The contactor according to claim 4, characterized in that, The contactor also includes a housing (2), which is fitted onto the sealing shell (4), and the permanent magnet plate (3) is sandwiched between the housing (2) and the sealing shell (4).

7. The contactor according to claim 6, characterized in that, The sealing shell (4) is provided with a top limiting block (24) and a bottom limiting block (25), and the permanent magnet plate (3) is sandwiched between the top limiting block (24) and the bottom limiting block (25).

8. A contactor assembly, characterized in that, The device includes a housing (26) and a contactor as described in any one of claims 1 to 7. The contactor is provided in two parts, namely a main positive contactor (30) and a main negative contactor (31). The housing (26) is provided with a first chamber (32) and a second chamber (33) spaced apart. The main positive contactor (30) is installed in the first chamber (32). The housing (26) is provided with a third through hole (28) communicating with the first chamber (32). The second connecting part (10) of the main positive contactor (30) extends out of the housing (26) through the third through hole (28). The main negative contactor (31) is installed in the second chamber (33). The housing (26) is provided with a fourth through hole (29) communicating with the second chamber (33). The second connecting part (10) of the main negative contactor (31) extends out of the housing (26) through the fourth through hole (29).

9. The contactor assembly according to claim 8, characterized in that, The contactor assembly also includes a cover (27) which is detachably connected to the housing (26) and the housing (26) seals the first chamber (32) and the second chamber (33).

10. The contactor assembly according to claim 9, characterized in that, The box body (26) has a receiving groove (34) on one side facing the box cover (27). The bottom wall of the receiving groove (34) is provided with a conductive post (35). The second connecting part (10) is provided with a conductive hole. The second connecting part (10) is inserted into the receiving groove (34). The conductive post (35) passes through the conductive hole. The outer peripheral surface of the conductive post (35) is in contact with the inner wall of the conductive hole.

Images