High voltage connector for linear motor and linear motor having the same

Abstract

The present invention provides a high-voltage connector for a linear motor and a linear motor having the same, the high-voltage connector includes a socket assembly and a plug assembly, the socket assembly is arranged on the linear motor, the socket assembly includes a contact seat and a flange insert, the plug assembly includes a conductive assembly, a tail pipe, an inner liner, a stress cone and an elastic member, the conductive assembly passes through the tail pipe, the inner liner and the stress cone in sequence and cooperates with the contact seat to supply power to the stator coil of the linear motor; the stress cone abuts against the contact seat, the stress cone is used to control the electric field strength at the insulation shielding of the conductive assembly, the tail pipe cooperates with the flange insert thread, the inner liner is arranged in the tail pipe, the elastic member is arranged in the tail pipe and sleeved on the outside of the inner liner to apply a set pressure to the stress cone through the inner liner. The technical solution of the present invention is applied to solve the technical problems that the high-voltage connector in the prior art cannot meet the insulation performance required by the feeder cable interface between ground linear motors, the structure is complex and the operation is inconvenient.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motors, and in particular to a high-voltage connector for a linear motor and a linear motor having the same. Background Art

[0002] The stator structure of the linear motor is a single coil connected in series along the track, and the power supply between each coil is provided by a feeder cable. If the winding cable is used directly as the stator coil, the connection elements between the coils can be avoided, but the process of manufacturing the winding cable and the treatment of the surface semi-conductive layer are difficult to achieve consistency. Even if the winding cable body has a good consistency effect, it is difficult to achieve equal contact resistance everywhere when in contact with the stator core or other grounding devices, which will bring great safety hazards. Therefore, the safest method is to make independent stator coils with Litz wire conductors and use feeder cables to connect the coils.

[0003] The connection parts of each coil are connected to the feeder cable and the stator coil through a high-voltage connector. The high-voltage connector for linear motors is used as the feeder cable interface between ground linear motors. It faces more stringent insulation requirements than simple cables and linear motors. Improving its insulation performance and designing a reasonable insulation structure are extremely important for the installation of feeder cables and the stable and safe operation of the entire system. However, the insulation performance of existing high-voltage connectors cannot meet the insulation performance requirements required for the feeder cable interface between ground linear motors, and the structure is complex and inconvenient to operate. Summary of the invention

[0004] The present invention provides a high-voltage connector for a linear motor and a linear motor having the same, which can solve the technical problems in the prior art that the high-voltage connector cannot meet the insulation performance required for the feeder cable interface between ground linear motors, has a complex structure and is inconvenient to operate.

[0005] According to one aspect of the present invention, a high-voltage connector for a linear motor is provided, and the high-voltage connector for the linear motor includes: a socket assembly, the socket assembly is arranged on the linear motor, the socket assembly includes a contact seat and a flange insert, the contact seat is electrically connected to the stator coil of the linear motor; a plug assembly, the plug assembly includes a conductive component, a tail pipe, an inner liner, a stress cone and an elastic member, the conductive component passes through the tail pipe, the inner liner and the stress cone in sequence and cooperates with the contact seat to supply power to the stator coil of the linear motor; the stress cone abuts against the contact seat, the stress cone is used to control the electric field strength at the insulating shielding of the conductive component, the tail pipe cooperates with the flange insert thread, the tail pipe is used to connect and fix the conductive component, the inner liner is arranged in the tail pipe, the elastic member is arranged in the tail pipe and is sleeved on the outside of the inner liner to apply a set pressure to the stress cone through the inner liner.

[0006] Furthermore, the conductive component includes a cable, a conductive fitting and a stop sleeve. The conductive fitting is arranged at the end of the cable. The conductive component conducts electricity with the contact seat through the conductive fitting. The stop sleeve is arranged on the cable and is used to limit the depth of the cable inserted into the contact seat.

[0007] Furthermore, the plug assembly also includes a rubber ring, which is arranged between the tail pipe and the flange insert, and is used to buffer the pressing force between the tail pipe and the flange insert.

[0008] Furthermore, the plug assembly also includes a ball, which is arranged on the inner wall of the tail pipe, and the ball is used to facilitate the rotation operation of the tail pipe relative to the flange insert.

[0009] Furthermore, the contact seat includes a contact seat body and a stator coil interface, the stator coil interface is arranged on the contact seat body, and the conductive component is electrically connected to the stator coil of the linear motor through the stator coil interface.

[0010] Further, the stator coil interface includes a conductive plate or a conductive tube.

[0011] Furthermore, the material of the stress cone includes silicone rubber.

[0012] Furthermore, the material of the conductive fittings includes aluminum, copper or copper-aluminum transition material.

[0013] Furthermore, the flange insert has a plurality of openings, and the plurality of openings are arranged at intervals along the circumference of the flange insert.

[0014] According to another aspect of the present invention, a linear motor is provided, comprising a stator coil and a high-voltage connector, the stator coil is fed via the high-voltage connector, the high-voltage connector is the high-voltage connector as described above, and the high-voltage connector is a fully dry structure.

[0015] By applying the technical solution of the present invention, a high-voltage connector for a linear motor is provided. The high-voltage connector is provided with a socket component and a plug component. The socket component is pre-buried in the linear motor module, and the contact seat is connected to the stator coil of the linear motor. When the stator coil needs to be fed with power, the tail tube is continuously tightened, and the tail tube applies pressure to the elastic part. The elastic part applies a set pressure to the stress cone through the liner tube to ensure a certain compression amount of the stress cone so that it is pressed tightly against the epoxy conical wall in the linear motor. The drawbacks of the stress cone such as elastic relaxation caused by material aging and poor contact between the stress cone and the outer semi-conductive layer of the conductive component are overcome, and the interface pressure is constant. The conductive component cooperates with the contact seat to supply power to the stator coil of the linear motor. This method has a compact structure, excellent performance, and is quick and easy to install and easy to operate. In addition, the electric field strength at the insulating shield of the conductive component is controlled by the stress cone, so that the insulation performance required for the feed cable interface between ground linear motors can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It shows a schematic structural diagram of a high voltage connector for a linear motor provided according to a specific embodiment of the present invention;

[0018] Figure 2 It shows a schematic structural diagram of a high-voltage connector for a linear motor provided by a specific embodiment of the present invention installed in the linear motor;

[0019] Figure 3 It shows a schematic structural diagram of a contact seat provided according to a first embodiment of the present invention;

[0020] Figure 4 It shows a schematic structural diagram of a contact seat provided according to a second embodiment of the present invention;

[0021] Figure 5 and Figure 6 A schematic structural diagram of a flange insert provided according to a specific embodiment of the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Socket assembly; 11. Contact seat; 111. Contact seat body; 112. Stator coil interface; 12. Flange insert; 12a. Opening; 121. Reinforcement bar; 20. Plug assembly; 21. Conductive assembly; 211. Cable; 212. Conductive hardware; 213. Stop sleeve; 22. Tail pipe; 23. Liner pipe; 24. Stress cone; 25. Elastic part; 26. Rubber ring; 27. Ball. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0027] like Figure 1 and Figure 2 As shown, according to a specific embodiment of the present invention, a high-voltage connector for a linear motor is provided, the high-voltage connector for a linear motor includes a socket assembly 10 and a plug assembly 20, the socket assembly 10 is arranged on the linear motor, the socket assembly 10 includes a contact seat 11 and a flange insert 12, the contact seat 11 is electrically connected to the stator coil of the linear motor, the plug assembly 20 includes a conductive component 21, a tail pipe 22, an inner liner tube 23, a stress cone 24 and an elastic member 25, the conductive component 21 passes through the tail pipe 22, the inner liner tube 23 and the stress cone 24 in sequence and cooperates with the contact seat 11 to supply power to the stator coil of the linear motor; the stress cone 24 abuts against the contact seat 11, the stress cone 24 is used to control the electric field strength at the insulation shielding of the conductive component 21, the tail pipe 22 is threadedly matched with the flange insert 12, the tail pipe 22 is used to connect and fix the conductive component 21, the inner liner tube 23 is arranged in the tail pipe 22, the elastic member 25 is arranged in the tail pipe 22 and is sleeved on the outside of the inner liner tube 23 to apply a set pressure to the stress cone 24 through the inner liner tube 23.

[0028] By applying this configuration, a high-voltage connector for a linear motor is provided. The high-voltage connector is provided with a socket component and a plug component. The socket component is pre-buried in the linear motor module, and the contact seat is connected to the stator coil of the linear motor. When the stator coil needs to be fed with power, the tail tube is continuously tightened, and the tail tube applies pressure to the elastic part. The elastic part applies a set pressure to the stress cone through the liner tube to ensure a certain compression amount of the stress cone so that it is pressed tightly against the epoxy conical wall in the linear motor. The drawbacks of elastic relaxation of the stress cone due to material aging and poor contact between the stress cone and the outer semi-conductive layer of the conductive component are overcome, and the interface pressure is constant. The conductive component cooperates with the contact seat to supply power to the stator coil of the linear motor. This method has a compact structure, excellent performance, and is quick and easy to install and operate. In addition, the electric field strength at the insulating shield of the conductive component is controlled by the stress cone, so that the insulation performance required for the feed cable interface between ground linear motors can be met.

[0029] Furthermore, in the present invention, in order to realize the feeding of the stator coil and limit the insertion depth of the cable to ensure that the cable will not be inserted too deep, the conductive component 21 can be configured to include a cable 211, a conductive fitting 212 and a stop sleeve 213, the conductive fitting 212 is arranged at the end of the cable 211, the conductive component 21 is electrically conductive with the contact seat 11 through the conductive fitting 212, the stop sleeve 213 is arranged on the cable 211, and the stop sleeve 213 is used to limit the depth of the cable 211 inserted into the contact seat 11.

[0030] In addition, in the present invention, in order to buffer the compression force between the tail pipe and the flange insert, the plug assembly 20 can be configured to also include a rubber ring 26, which is arranged between the tail pipe 22 and the flange insert 12, and the rubber ring 26 is used to buffer the compression force between the tail pipe 22 and the flange insert 12.

[0031] Furthermore, in the present invention, in order to facilitate tightening the tail pipe, the plug assembly 20 can be configured to further include a ball 27 disposed on the inner wall of the tail pipe 22 , and the ball 27 is used to facilitate the rotation operation of the tail pipe 22 relative to the flange insert 12 .

[0032] In addition, in the present invention, in order to facilitate the feeding of the stator coil, the contact seat 11 can be configured to include a contact seat body 111 and a stator coil interface 112, the stator coil interface 112 is set on the contact seat body 111, and the conductive component 21 is electrically connected to the stator coil of the linear motor through the stator coil interface 112.

[0033] As a first embodiment of the present invention, Figure 3 As shown, a conductive plate may be used as the stator coil interface 112, as a second embodiment of the present invention, as shown in FIG. Figure 4 As shown, a conductive tube may be used as the stator coil interface 112 .

[0034] Furthermore, in the present invention, the material of the stress cone 24 includes silicone rubber, and the material of the conductive fitting 212 includes aluminum, copper, or copper-aluminum transition material.

[0035] In the present invention, in order to improve the firmness of the flange insert, the flange insert 12 may be configured to have a plurality of openings 12a, and the plurality of openings 12a are arranged at intervals along the circumference of the flange insert 12. Specifically, Figure 5 and Figure 6 As shown, the flange insert 12 has a plurality of openings 12a, and a reinforcement bar 121 is formed at the opening to achieve adhesion with the mold casting material.

[0036] According to another aspect of the present invention, a linear motor is provided, which includes a stator coil and a high-voltage connector, the stator coil is fed by the high-voltage connector, the high-voltage connector is the high-voltage connector as described above, and the high-voltage connector is a fully dry structure.

[0037] By applying this configuration, a linear motor is provided, which includes a high-voltage connector as described above. Since the high-voltage connector provided by the present invention is provided with a socket component and a plug component, the socket component is pre-buried in the linear motor module, and the contact seat is connected to the stator coil of the linear motor. When the stator coil needs to be fed, the tail tube is continuously tightened, and the tail tube applies pressure to the elastic member, and the elastic member applies a set pressure to the stress cone through the inner liner tube, ensuring a certain compression amount of the stress cone, so that it is pressed against the epoxy conical wall in the linear motor, overcoming the elastic relaxation of the stress cone due to material aging, and the poor contact between the stress cone and the outer semi-conductive layer of the conductive component, etc., ensuring the constant interface pressure, the conductive component and the contact seat cooperate to supply power to the stator coil of the linear motor; in addition, the electric field strength at the insulating shield of the conductive component is controlled by the stress cone, so that the insulation performance required by the feeder cable interface between the ground linear motors can be met. Therefore, applying the high-voltage connector to the linear motor can greatly improve the working performance of the high-voltage connector. In addition, the high-voltage connector is a fully dry structure, which eliminates the possibility of leakage during operation.

[0038] In order to further understand the present invention, the following Figures 1 to 6 The high voltage connector for a linear motor provided by the present invention is described in detail.

[0039] like Figures 1 to 6As shown, according to a specific embodiment of the present invention, a high-voltage connector for a linear motor is provided, the high-voltage connector for a linear motor includes a socket assembly 10 and a plug assembly 20, the socket assembly 10 is arranged on the linear motor, the socket assembly 10 includes a contact seat 11 and a flange insert 12, the contact seat 11 is connected to the stator coil of the linear motor, the flange insert 12 is cast inside the linear motor, the plug assembly 20 includes a conductive component 21, a tail pipe 22, a liner tube 23, a stress cone 24, an elastic member 25, a rubber ring 26 and a ball 27, the conductive component 21 passes through the tail pipe 22, the liner tube 23, the stress cone 24, the elastic member 25, the rubber ring 26 and the ball 27 in sequence The tube 23 and the stress cone 24 cooperate with the contact seat 11 to supply power to the stator coil of the linear motor; the stress cone 24 abuts against the contact seat 11, and the stress cone 24 is used to control the electric field strength at the insulation shield of the conductive component 21. The tail tube 22 is threadedly matched with the flange insert 12, and the tail tube 22 is used to connect and fix the conductive component 21. The liner tube 23 is arranged in the tail tube 22, and the liner tube 23 and the tail tube 22 cooperate to press the stress cone 24 to ensure good air tightness. The elastic member 25 is arranged in the tail tube 22 and sleeved on the outside of the liner tube 23 to apply a constant thrust to the stress cone 24 through the liner tube 23. In this embodiment, a spring can be used as the elastic member.

[0040] The conductive component 21 is configured to include a cable 211, a conductive fitting 212 and a stop sleeve 213. After stripping the cable insulation, the stop sleeve 213 is put on, and then the conductive fitting 212 is installed to ensure that the cable will not be inserted too deep. The conductive fitting 212 is set at the end of the cable 211. The conductive component 21 conducts electricity with the contact seat 11 through the conductive fitting 212. The stop sleeve 213 is set on the cable 211, and the stop sleeve 213 is used to limit the depth of the cable 211 inserted into the contact seat 11.

[0041] The contact seat 11 is directly cast in the linear motor and becomes an integral part with the linear motor. The contact seat 11 is preset with an interface with the stator coil conductor. The interface connected with the stator coil conductor can be a conductive plate or a conductive tube, such as Figure 3 and Figure 4 As shown, it is then welded to a suitable position of the contact seat 11, which has greater construction flexibility.

[0042] The high-voltage connector adopts a plug-in structure. When installing, you only need to make the plug assembly 20 and insert it into the linear motor. The connection and fixation between the plug assembly 20 and the linear motor can be achieved by thread locking, that is, the tail pipe 22 of the plug assembly 20 is prefabricated with external (internal) threads, which are matched and locked with the internal (external) threads of the prefabricated flange insert 12 in the linear motor, eliminating the cumbersome operation of tightening by alternating long and short bolts.

[0043] In this embodiment, the inner liner tube 23 is continuously compressed by continuously tightening the tail tube 22 to compress the spring, thereby ensuring that a constant force is applied to the stress cone 24, ensuring a certain amount of compression of the stress cone 24, and making it press tightly against the epoxy conical wall inside the linear motor, thereby overcoming the drawbacks of the stress cone such as elastic relaxation due to material aging and poor contact between the stress cone and the outer semi-conductive layer of the cable, thereby ensuring the constancy of the interface pressure.

[0044] The prefabricated stress cone 24 is made of high-quality silicone rubber material and is formed by high-pressure rubber injection molding using rubber injection equipment. The entire connector is a fully dry structure, which eliminates the possibility of leakage during operation. The plug assembly 20 of the high-voltage connector uses a prefabricated stress cone to connect the cable and control the electric field at the cable insulation shielding layer. The stator coil interface 112 can use a conductor tube, and the stator coil conductor is inserted into the stator coil interface 112 and connected by crimping. The conductive hardware 212 can be made of aluminum, copper or copper-aluminum transition material, and the appropriate material can be selected according to needs.

[0045] The flange insert 12 may be provided with an internal (external) thread, and the tail pipe 22 matched therewith may be provided with an external (internal) thread, and the tail pipe may be screwed into the flange insert 12. In order to improve the firmness of the flange insert 12, an opening may be provided on it, thereby obtaining a reinforcement bar 121 to achieve adhesion with the mold casting material.

[0046] In summary, the present invention provides a high-voltage connector for a linear motor, which can be plugged and unplugged easily, improve the efficiency of installation and removal of feeder cables, have a compact structure, excellent performance, convenient and quick installation, easy operation, and improve the reliability of system insulation. It can be applied to maglev trains, maglev rocket sleds, electromagnetic catapults, maglev space booster launches, and other fields. Compared with the prior art, the high-voltage connector provided by the present invention has the following advantages.

[0047] First, the contact seat and flange insert are pre-buried in the linear motor module, the stator coil interface is welded on the contact seat body, and the stator coil conductor is connected to the stator coil interface on the contact seat body to achieve electrical connection.

[0048] Second, a flange insert is embedded in the linear motor port, and the threads of the high-voltage connector tail pipe and the flange insert cooperate to fix the conductive components.

[0049] Third, a spring is preset in the plug assembly, and the spring force provides a constant pressure to the stress cone to ensure the sealing of the interface.

[0050] Fourth, the electric field strength at the cable insulation shield is controlled by the stress cone to meet the insulation performance required by the feeder cable interface between the ground linear motors.

[0051] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high voltage connector for a linear motor, characterized in that: The high voltage connector for the linear motor comprises: A socket assembly (10), the socket assembly (10) being arranged on a linear motor, the socket assembly (10) comprising a contact seat (11) and a flange insert (12), the contact seat (11) being electrically connected to a stator coil of the linear motor; A plug assembly (20), the plug assembly (20) comprising a conductive assembly (21), a tail pipe (22), an inner liner (23), a stress cone (24) and an elastic member (25); the conductive assembly (21) sequentially passes through the tail pipe (22), the inner liner (23) and the stress cone (24) to cooperate with the contact seat (11) to supply power to the stator coil of the linear motor; the stress cone (24) abuts against the contact seat (11), and the stress cone (24) is used to control the conductive assembly ( 21) The electric field strength at the insulating shielding, the tail pipe (22) is threadedly matched with the flange insert (12), the tail pipe (22) is used to connect and fix the conductive component (21), the liner pipe (23) is arranged in the tail pipe (22), the elastic member (25) is arranged in the tail pipe (22) and is sleeved on the outside of the liner pipe (23) to apply a set pressure to the stress cone (24) through the liner pipe (23), and the material of the stress cone (24) includes silicone rubber.

2. The high voltage connector for a linear motor according to claim 1, characterized in that: The conductive component (21) comprises a cable (211), a conductive fitting (212) and a stop sleeve (213); the conductive fitting (212) is arranged at the end of the cable (211); the conductive component (21) conducts electricity with the contact seat (11) via the conductive fitting (212); the stop sleeve (213) is arranged on the cable (211); and the stop sleeve (213) is used to limit the depth of the cable (211) inserted into the contact seat (11).

3. The high voltage connector for a linear motor according to claim 2, characterized in that: The plug assembly (20) further comprises a rubber ring (26), wherein the rubber ring (26) is arranged between the tail pipe (22) and the flange insert (12), and the rubber ring (26) is used to buffer the pressing force between the tail pipe (22) and the flange insert (12).

4. The high voltage connector for a linear motor according to claim 1, characterized in that: The plug assembly (20) further comprises a ball (27), wherein the ball (27) is arranged on the inner wall of the tail pipe (22), and the ball (27) is used to facilitate the rotation operation of the tail pipe (22) relative to the flange insert (12).

5. The high voltage connector for a linear motor according to any one of claims 1 to 4, characterized in that: The contact seat (11) comprises a contact seat body (111) and a stator coil interface (112); the stator coil interface (112) is arranged on the contact seat body (111); and the conductive component (21) is electrically connected to the stator coil of the linear motor via the stator coil interface (112).

6. The high voltage connector for a linear motor according to claim 5, characterized in that: The stator coil interface (112) comprises a conductive plate or a conductive tube.

7. The high voltage connector for a linear motor according to claim 2, characterized in that: The material of the conductive fittings (212) includes aluminum, copper or copper-aluminum transition material.

8. The high voltage connector for a linear motor according to claim 7, characterized in that: The flange insert (12) has a plurality of openings (12a), and the plurality of openings (12a) are arranged at intervals along the circumference of the flange insert (12).

9. A linear motor, characterized in that: The linear motor includes a stator coil and a high-voltage connector, the stator coil is fed by the high-voltage connector, the high-voltage connector is the high-voltage connector according to any one of claims 1 to 8, and the high-voltage connector is a fully dry structure.

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