Circuit connecting device and assembling method thereof

Abstract

The invention discloses a circuit connecting device and an assembling method of the circuit connecting device. The circuit connecting device comprises a first connecting part and a second connecting part, wherein the first connecting part is fixedly connected with the second connecting part; the first connecting part is provided with a conductive column, the wire outlet end of the conductive column is provided with a wiring hole, the second connecting part is provided with a wire outlet column, and the wiring hole and the wire outlet column are configured to be in mutual contact fit so as to improve the current-carrying capacity of the surface of the wiring hole. According to the circuit connecting device provided by the embodiment of the invention, the hole columns with the taper are arranged for matching, and the contact surface fitting degree of the connecting plug is improved by utilizing the extrusion stress on the conical matching surface; furthermore, the maximum current-carrying capacity of a circuit connecting device is improved by utilizing relatively high fitting degree, the occurrence probability of various faults caused by poor contact is further reduced, and the use safety of the electric connector is improved.

Description

Technical Field

[0001] This application relates to the technical field of aviation electrical connectors, and particularly relates to a circuit connection device and an assembly method thereof. Background Art

[0002] With the development of technology, new energy motors have been applied in the fields of automobiles, aviation, and aerospace. There are various types of aviation electrical connectors with a wide range of applications. Correctly selecting a safe aviation electrical connector is also a major aspect in improving the reliability of products. However, in the current related technologies, the degree of fit of the connection contact surface of the aviation electrical connector often cannot be guaranteed, thus the operation safety of the aircraft under the maximum current-carrying capacity cannot be ensured, and there are great potential safety hazards. Summary of the Invention

[0003] This application provides a circuit connection device and a connection device assembly method.

[0004] The circuit connection device according to the embodiments of this application includes a first connection part and a second connection part, and the first connection part is fixedly connected to the second connection part;

[0005] The first connection part is provided with a conductive column, and a wiring hole is provided at the outgoing line end of the conductive column. The second connection part is provided with an outgoing line column. The contact surface between the wiring hole and the outgoing line column has a preset taper. The wiring hole and the outgoing line column are configured to be in contact and cooperate with each other to improve the current-carrying capacity of the surface of the wiring hole.

[0006] In this way, the circuit connection device in the embodiments of this application improves the degree of fit of the contact surface at the connection plug by setting the hole-column fit with a taper, and then uses the higher degree of fit to increase the maximum current-carrying capacity of the circuit connection device, and further reduces the occurrence probability of various faults caused by poor contact, thereby improving the use safety of the electrical connector.

[0007] In some embodiments, the taper angle of the wiring hole ranges from 30° to 150°, and the value range of the difference between the taper angle of the wiring hole and the taper angle of the outgoing line column is from 30' to 50'.

[0008] In some embodiments, the first connection part includes a conductive sheet, and the conductive sheet is attached to the tapered surface of the wiring hole;

[0009] The material of the conductive sheet meets the first preset condition, and the first preset condition includes a conductivity condition and / or an elastoplastic condition. The area of the conductive sheet is 85% - 95% of the contact surface area between the wiring hole and the outgoing line column, and the thickness range of the conductive sheet is 2 mm - 3 mm.

[0010] Thus, in the embodiments of the present application, the contact and fitting degree between the wiring hole and the outgoing line post is improved by setting the taper angle difference between the wiring hole and the outgoing line post and by providing a conductive sheet.

[0011] In some embodiments, the first connecting portion includes a first housing, and the conductive post is covered by the first housing;

[0012] A first insulating layer is provided between the first housing and the conductive post, and the first insulating layer is used to prevent breakdown between the first housing and the conductive post.

[0013] In some embodiments, the first included angle and the second included angle of the first connecting portion are equal, where the first included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the first housing, and the second included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the conductive post. The value range of the first included angle is 90° to 180°.

[0014] In some embodiments, the first connecting portion further includes a first seal, and the first seal is disposed between the first housing and the second connecting portion. The first seal is used to seal the gap between the first connecting portion and the second connecting portion.

[0015] Thus, by providing a connecting member, the present application protects the conductive post and ensures the sealing of the device. On the one hand, it facilitates the connection of the plug, and on the other hand, it can flexibly adjust the bending angle between the connecting housing and the conductive post to adapt to different spatial layout methods inside the aircraft.

[0016] In some embodiments, the second connecting portion further includes a second housing, and the outgoing line post is covered by the second housing. The inner wall of the second housing is threadedly connected to the outer wall of the first housing in the first connecting portion;

[0017] A second insulating layer is provided between the second housing and the outgoing line post, and the second insulating layer is used to prevent breakdown between the second housing and the outgoing line post.

[0018] Thus, the present application also protects the lead wire of the connector by providing a second connecting portion, and fixes the contact and fit between the wiring hole and the outgoing line post through the threaded connection between the second connecting portion and the first connecting portion.

[0019] In some embodiments, a blind hole is provided at the incoming line end of the conductive post, and the blind hole is configured to be fixedly connected to the lead wire of the device to be connected.

[0020] In some embodiments, the circuit connection device further includes a third connection portion. The third connection portion includes a third housing, and the third housing is fixedly connected to the first housing of the first connection portion. The third housing covers the conductive post.

[0021] In some embodiments, the third connection portion further includes a second seal. The second seal is disposed on the outer surface of the third housing, and the second seal is used to seal the gap between the device to be connected and the third connection portion.

[0022] In this way, the present application also provides a stable and sealed connection relationship between the connection device and the device to be connected through the setting of the third connection portion, and covers and protects the blind hole for fixing the lead-out cable.

[0023] The assembly method of the circuit connection device in the embodiments of the present application is used to assemble the above-mentioned circuit connection device. The assembly method includes:

[0024] Obtain the current-carrying capacity and the effective assembly space of the device to be connected;

[0025] According to the effective assembly space, determine the first included angle of the first connection portion, where the first included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the first housing;

[0026] According to the current-carrying capacity and the first included angle, determine the diameter of the conductive post;

[0027] According to the current-carrying capacity, determine the taper angle size of the wiring hole;

[0028] Connect the lead-out cable of the device to be connected to the blind hole of the conductive post;

[0029] Connect the third housing to the outgoing line end of the device to be connected and seal it;

[0030] Connect the third housing to the first housing and seal it;

[0031] Connect the second housing to the first housing and seal it;

[0032] Control the contact and cooperation between the outgoing line post and the wiring hole, so that both between the conductive sheet and the outgoing line post and between the conductive sheet and the wiring hole are tightly pressed.

[0033] In some embodiments, the assembly method further includes:

[0034] Detect the total resistance value between the outgoing line post and the conductive post;

[0035] In the case where the resistance value exceeds the preset threshold range, replace the conductive sheet and detect the total resistance value between the outgoing line terminal and the conductive column until the resistance value is within the preset threshold range.

[0036] In some embodiments, determining the diameter of the conductive column according to the current-carrying capacity and the first included angle includes:

[0037] Determine the standard diameter corresponding to the conductive column according to the current-carrying capacity;

[0038] Determine the diameter of the conductive column according to the standard diameter and the first included angle.

[0039] Thus, the present application also provides an assembly method for use in conjunction with the above circuit connection device to ensure that all functions of the above circuit connection device are intact.

[0040] Additional aspects and advantages of the embodiments of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, wherein:

[0042] Figure 1 is a schematic cross-sectional structure diagram of a circuit connection device in an embodiment of the present application;

[0043] Figure 2 is a schematic flow chart of an assembly method of a circuit connection device in an embodiment of the present application;

[0044] Figure 3 is a schematic flow chart of an assembly method of a circuit connection device in an embodiment of the present application;

[0045] Figure 4 is a schematic flow chart of an assembly method of a circuit connection device in an embodiment of the present application.

[0046] Wherein: 10, the third connection part; 101, the third housing; 102, the second sealing member; 20, the first connection part; 201, the first housing; 202, the first insulating member; 203, the conductive column; 204, the conductive sheet; 205, the first sealing member; 30, the second connection part; 301, the second housing; 302, the second insulating member; 303, the outgoing line terminal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and should not be construed as a limitation to the embodiments of the present application.

[0048] Please refer to Figure 1 , the circuit connection device in the embodiment of the present application includes a first connection portion 20 and a second connection portion 30, and the first connection portion 20 and the second connection portion 30 are fixedly connected;

[0049] The first connection portion 20 is provided with a conductive post 203, and a wiring hole is provided at the lead-out end of the conductive post 203. The second connection portion 30 is provided with a lead-out post 303. The contact surface between the wiring hole and the lead-out post 303 has a preset taper. The wiring hole and the lead-out post 303 are configured to be in contact and cooperate with each other to improve the current-carrying capacity of the surface of the wiring hole.

[0050] Specifically, the circuit connection device in the embodiment of the present application is generally an aviation electrical connector, and its application scenario is generally used for electrical connection between electrical devices in the internal circuit of an aircraft or between an electrical device and a power source. The circuit connection device generally includes a first connection portion 20 and a second connection portion 30. The first connection portion 20 is provided with a conductive post 203, and the second connection portion 30 is provided with a lead-out post 303. Between the above-mentioned conductive post 203 and the lead-out post 303, power-on is achieved through the contact and cooperation between the wiring hole provided on the conductive post 203 and the hole column of the lead-out post 303. The contact surface between the wiring hole and the lead-out post 303 has a preset taper. In this way, by relying on the contact and cooperation between the wiring hole and the hole column of the lead-out post 303, the contact area between the conductive post 203 and the lead-out post 303 can be effectively increased, and when the two columns are in close contact and fit, a special shape of a conical mating surface is formed by using the characteristic that the mating surface has a taper, and then a large stress is generated under this special shape, improving the tightness of the fit between the two columns, avoiding the occurrence of phenomena such as poor contact, and further ensuring that the maximum current-carrying capacity between the two columns during power-on can meet the requirements of the circuit. At the same time, it can also ensure the electrical safety of the entire current connection device when powered on at the maximum current-carrying capacity, avoiding the occurrence probability of overheating or other failures. Among them, exemplarily, the shapes of the wiring hole and the lead-out post 303 can both be conical, so as to ensure that the current transfer conditions in all directions between the conductive post 203 and the lead-out post 303 are as identical as possible. Exemplarily, the wiring hole can adopt a conical hole or a frustum-shaped hole or other shapes with a taper, and correspondingly, the lead-out post 303 can adopt a frustum shape, a round-top conical shape or a pointed-top conical shape or other shapes with a taper for cooperation, so as to facilitate the condition that the mating surface between the wiring hole and the lead-out post 303 has a preset taper.

[0051] Thus, the circuit connection device in the embodiment of the present application improves the contact surface fit degree at the connection plug by setting the hole column with taper and using the extrusion stress on the tapered mating surface, and further improves the maximum current-carrying capacity of the circuit connection device by using the higher fit degree, and further reduces the occurrence probability of various faults caused by poor contact, thereby improving the use safety of the electrical connector.

[0052] Please refer further to Figure 1 , in some embodiments, the taper angle range of the wiring hole is 30° to 150°, and the value range of the difference between the taper angle of the wiring hole and the taper angle of the outgoing line column 303 is 30′ to 50′.

[0053] In some embodiments, the first connection portion 20 includes a conductive sheet 204, and the conductive sheet 204 is attached to the tapered surface of the wiring hole;

[0054] The material of the conductive sheet 204 satisfies a first preset condition, and the first preset condition includes a conductivity condition and an elastoplastic condition. The area of the conductive sheet 204 is 85% to 95% of the contact surface area between the wiring hole and the outgoing line column 303, and the thickness range of the conductive sheet 204 is 2 mm to 3 mm.

[0055] Specifically, on the basis of the above embodiments, for the contact and fit relationship between the wiring hole and the outgoing line column 303, by way of example, the taper angle range of the wiring hole is 30° to 150°, and the taper angle of the outgoing line column 303 is slightly smaller than the taper angle of the wiring hole, and the difference range is 30′ to 50′. Among them, the taper angle refers to the apex angle of an isosceles triangle with the diameter of the bottom circle of the imaginary cone corresponding to the tapered surface as the base and the two generatrices as the waists. The purpose of the taper angle of the outgoing line column 303 being slightly smaller than the taper angle of the wiring hole is to reserve a gap for filling materials between the two, so as to facilitate the tight fit between the two by means of the filling materials.

[0056] Furthermore, for the filling material between the outgoing line column 303 and the wiring hole, by way of example, a conductive sheet 204 is attached to the tapered surface of the wiring hole. The above-mentioned conductive sheet 204 has elasticity, and the purpose is to achieve complete pressing with the tapered surface of the wiring hole (that is, the contact surface between the wiring hole and the outgoing line column 303). The material of the conductive sheet 204 generally uses pure silver or other materials that satisfy the first preset condition. By way of example, the above-mentioned first preset condition means having good elastoplasticity and good conductivity equivalent to pure silver. Such a material of the conductive sheet 204 can, on the one hand, ensure the tight fit between the wiring hole and the outgoing line column 303, and on the other hand, can provide good electrical conductivity, which plays a positive role in ensuring the maximum current-carrying capacity.

[0057] Further, the thickness of the conductive sheet 204 ranges from about 2 mm to 3 mm, and its total area ranges from about 85% to 95% of the mating surface area of the contact fit between the wiring hole and the outgoing line post 303, and generally 90% is appropriate. The main purpose of setting the above dimensions is to compensate for the cumulative tolerances caused by manufacturing or external conditions, or to compensate for the tolerances at the contact mating surface, so as to ensure the fit degree of the contact mating surface and the electrical safety of the circuit connection device when passing the maximum current-carrying capacity.

[0058] In this way, in the embodiment of the present application, the contact fit degree between the wiring hole and the outgoing line post 303 is improved by setting the taper angle difference between the wiring hole and the outgoing line post 303 and by setting the conductive sheet 204.

[0059] Please refer further to Figure 1 , in some embodiments, the first connection portion 20 includes a first housing 201, and the conductive post 203 is covered by the first housing 201;

[0060] A first insulating member 202 is provided between the first housing 201 and the conductive post 203, and the first insulating member 202 is used to prevent breakdown between the first housing 201 and the conductive post 203.

[0061] In some embodiments, the first included angle and the second included angle of the first connection portion 20 are equal, where the first included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the first housing 201, and the second included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the conductive post 203, and the value range of the first included angle is 90° to 180°.

[0062] In some embodiments, the first connection portion 20 further includes a first sealing member 205, and the first sealing member 205 is disposed between the first housing 201 and the second connection portion 30, and the first sealing member 205 is used to seal the gap between the first connection portion 20 and the second connection portion 30.

[0063] Specifically, on the basis of the above embodiments, in some examples, the first connection portion 20 further includes a first housing 201 covering the conductive post 203, and generally a reserved space is provided between the first housing 201 and the conductive post 203. The main function of the first housing 201 is to provide protection for the conductive post 203 and at the same time facilitate the connection of the second connection portion 30 to the current connection device.

[0064] Further optionally, a first insulating member 202 is also disposed in the reserved space between the first housing 201 and the conductive post 203. The first insulating member 202 generally tightly wraps the outer surface of other regions of the conductive post 203 except the region where the wiring hole is located. At the same time, the first housing 201 tightly wraps the outside of the first insulating member 202. The materials used for the first insulating member 202 include but are not limited to insulating fibers, insulating ceramics, or other materials with good insulating properties. The main function of the first insulating member 202 is to provide an insulating barrier between the conductive post 203 and the first housing 201, and as much as possible to prevent the breakdown phenomenon between the conductive post 203 and the first housing 201 when the voltage is relatively high or the current is relatively large, thereby protecting the overall electrical safety of the circuit connection device. In addition, when the first insulating member 202 has a certain structural strength, the first insulating member 202 also has the function of providing structural support for the conductive post 203 to achieve the function of fixing the conductive post 203 relative to the first housing 201. In this way, the positional relationship between the conductive post 203 and the first housing 201 can be ensured to be stable. Exemplarily, by setting the first insulating member 202, it can be ensured that the first housing 201 and the conductive post 203 have the same axis.

[0065] Further optionally, on the basis of the above example, for the first housing 201 and the conductive post 203, the first angle formed between the axis of the inlet end and the axis of the outlet end of the first housing 201 is equal to the second angle formed between the axis of the inlet end and the axis of the outlet end of the conductive post 203. The range of both can be 90° to 180°, that is, the actual value of the first angle can be arbitrarily determined within the range of 90° to 180° according to the actual situation. Generally, please refer to Figure 2 , the above-mentioned outlet end refers to the end where the conductive post 203 contacts the outlet post 303, and the inlet end refers to the other end of the conductive post 203 corresponding to the above-mentioned outlet end.

[0066] The purpose of this is that when manufacturing the circuit connection device in the above embodiment, the positions of the first housing 201 and the conductive post 203 can be adjusted according to the actual structure and layout of each device inside the aircraft to be assembled, so as to realize that the circuit connection device can customize the occupancy of the space inside the aircraft, optimize the positional relationship between each device and component, reduce the probability of functional conflicts or failures, and thus improve the use safety and stability of the circuit connection device and the aircraft as a whole.

[0067] Further optionally, the first connecting part 20 also includes a first sealing member 205, which is generally in the form of an O-ring, a rubber gasket, a sealant, etc., and is mainly used to seal the gap that may exist between the first shell 201 and the second connecting part 30 after the fixed connection, thereby protecting the internal space where the conductive column 203 and the outlet column 303 are located, so as to prevent objects such as water or other objects that may cause discharge or short circuit from entering the above space, thereby avoiding electrical accidents such as short circuit, overheating, external release of arc, fire, etc. as much as possible, and improving the electrical safety of circuit connection devices.

[0068] In this way, the present application provides a connector to protect the conductive column 203 and ensure the sealing of the equipment. On the one hand, it facilitates the connection of the plug, and on the other hand, it can flexibly adjust the bending angle of the connecting shell and the conductive column 203 to adapt to different spatial layouts inside the aircraft.

[0069] Please read further Figure 1 In some embodiments, the second connection portion 30 further includes a second shell 301, the outlet column 303 is covered by the second shell 301, and the inner wall of the second shell 301 is threadedly connected to the outer wall of the first shell 201 in the first connection portion 20;

[0070] A second insulating member 302 is disposed between the second housing 301 and the outlet post 303 , and the second insulating member 302 is used to prevent the second housing 301 and the outlet post 303 from being broken through.

[0071] Specifically, based on the above embodiment, the second connection part 30 further includes a second shell 301 covering the outlet post 303, and a reserved space is generally provided between the second shell 301 and the outlet post 303. The main function of the second shell 301 is to provide protection for the outlet post 303 and facilitate the connection of the second connection part 30 on the current connection device.

[0072] Further optionally, a second insulating member 302 is also provided in the reserved space between the second shell 301 and the outlet post 303. The second insulating member 302 is generally tightly wrapped on the outer surface of the outlet post 303, and the second shell 301 is tightly wrapped on the outer side of the second insulating member 302. The materials used for the second insulating member 302 include but are not limited to insulating fibers, insulating ceramics or other materials with good insulating properties. The main function of the second insulating member 302 is to provide an insulating barrier between the outlet post 303 and the second shell 301, and to prevent the breakdown between the outlet post 303 and the second shell 301 as much as possible when the voltage is high or the current is large, thereby protecting the overall electrical safety of the circuit connection device. In addition, when the second insulating member 302 has a certain structural strength, the second insulating member 302 also has the function of providing structural support for the terminal post 303, so as to fix the terminal post 303 relative to the second shell 301, thereby ensuring that the positional relationship between the terminal post 303 and the second shell 301 is stable. For example, the provision of the second insulating member 302 can ensure that the second shell 301 and the terminal post 303 have the same axis.

[0073] Furthermore, the fixed connection between the first connection part 20 and the second connection part 30 is generally achieved through the connection between the first shell 201 and the second shell 301. For example, threads that can cooperate with each other are provided on the inner wall of the second shell 301 and the outer wall of the first shell 201, and the fixed connection between the first connection part 20 and the second connection part 30 can be achieved through the threaded connection between the first shell 201 and the second shell 301. Moreover, as the threads between the two are screwed in, the outlet column 303 can also be driven to gradually approach the wiring hole of the conductive column 203 and gradually approach, contact, and compact until the wiring hole and the outlet column 303 are tightly fitted. In addition, for the sake of protecting the space where the conductive column 203 and the outlet column 303 are located, illustratively, on the basis of the first shell 201 and the second shell 301 being connected by threaded fastening, the above-mentioned threads can also be sealed by thread sealant, which is mainly used to seal the gap between the first shell 201 and the second shell 301 at the thread after the threaded connection, thereby protecting the internal space where the conductive column 203 and the outlet column 303 are located, so as to prevent objects such as water or other objects that may cause discharge or short circuit from entering the above-mentioned space, thereby avoiding electrical accidents such as short circuit, overheating, external release of arc, fire, etc. as much as possible, and improving the electrical safety of circuit connection devices.

[0074] In this way, the present application also protects the lead wires of the connector by providing a second connection part 30, and fixes the lead wires by contacting and fitting the wire holes and the lead-out posts 303 through the threaded connection between the second connection part 30 and the first connection part 20.

[0075] Please read furtherFigure 1 In some embodiments, a blind hole is provided at the incoming end of the conductive column 203, and the blind hole is configured to be fixedly connected to the outgoing cable of the device to be connected.

[0076] In some embodiments, the circuit connection device further includes a third connection portion 10 , the third connection portion 10 includes a third shell 101 , the third shell 101 is fixedly connected to the first shell 201 of the first connection portion 20 , and the third shell 101 covers the conductive column 203 .

[0077] In some embodiments, the third connecting portion 10 further includes a second sealing member 102 , which is disposed on an outer surface of the third housing 101 , and is used to seal a gap between the device to be connected and the third connecting portion 10 .

[0078] Specifically, based on the above implementation, illustratively, a blind hole is provided along the axis of the inlet end of the conductive column 203, and the main function of the blind hole is to introduce the lead-out cable of the device to be connected, so as to connect the device to be connected to the circuit connection device. The fixed connection method between the lead-out cable of the device to be connected and the blind hole can be selected according to actual conditions, and this application does not make specific limitations.

[0079] Based on the above example, illustratively, the circuit connection device further includes a third connection portion 10, and the third connection portion 10 includes a third shell 101 fixedly connected to the first shell 201 and a second sealing member 102 disposed on the outer surface of the third shell 101. The main functions of the third shell 101 are, on the one hand, to be fixedly connected to the cable lead-out position of the device to be connected, and on the other hand, to protect the conductive column 203 and the lead-out cable of the device to be connected that is fixedly connected to the conductive column 203 through the blind hole.

[0080] The third shell 101 is wrapped around the outside of the conductive column 203 together with the first shell 201. Generally, the position where the third shell 101 is wrapped is located in the area where the blind hole on the conductive column 203 is located. Its main function is to protect the position where the lead-out cable of the device to be connected is connected to the circuit connection device. The third shell 101 and the first shell 201 are fixedly connected. Considering the protection of the space where the blind hole on the conductive column 203 is located, the fixed connection between the third shell 101 and the first shell 201 can be achieved by welding or sealing adhesive bonding. The above-mentioned fixed connection method can reduce the probability of gaps when the two are fixedly connected as much as possible, thereby protecting the internal space where the conductive column 203 and the lead-out cable of the device to be connected are located, so as to prevent water or other objects that may cause discharge or short circuit from entering the above space, thereby avoiding electrical accidents such as short circuit, overheating, external arc release, fire, etc. as much as possible, and improving the electrical safety of the circuit connection device.

[0081] Furthermore, the second sealing member 102 provided on the outer surface of the third shell 101 is generally in the form of an O-ring, a rubber gasket, a sealant, etc., which is mainly used to seal the gap that may exist between the third shell 101 and the cable lead-out position of the device to be connected (that is, the line outlet end of the device to be connected) after the fixed connection, thereby further strengthening the protection of the internal space where the conductive column 203 and the lead-out cable are located, so as to prevent objects such as water or other objects that may cause discharge or short circuit from entering the above space, thereby avoiding electrical accidents such as short circuit, overheating, external arc release, fire, etc. as much as possible, and improving the electrical safety of circuit connection devices.

[0082] In this way, the present application also provides a stable and sealed connection relationship between the connecting device and the device to be connected through the configuration of the third connecting part 10, and covers and protects the blind hole for fixing the lead-out cable.

[0083] See also Figure 2 The method for assembling the circuit connecting device in the embodiment of the present application is used to assemble the above-mentioned circuit connecting device, and the method includes:

[0084] 01: Obtain the current carrying capacity and effective assembly space of the device to be connected;

[0085] 02: Determine the first angle of the first connecting portion 20 according to the effective assembly space.

[0086] The first angle is the angle between the axis of the inlet end and the axis of the outlet end of the first housing 201;

[0087] 03: Determine the diameter of the conductive column 203 according to the current carrying capacity and the first angle;

[0088] 04: Determine the cone angle of the wiring hole according to the current carrying capacity;

[0089] 05: Connect the lead-out cable of the device to be connected to the blind hole of the conductive column 203;

[0090] 06: Connect the third housing 101 to the outlet terminal of the device to be connected and seal it;

[0091] 07: Connect the third shell 101 and the first shell 201 and seal them;

[0092] 08: Connect the second shell 301 and the first shell 201 and seal them;

[0093] 09: Control the contact and cooperation between the outlet post 303 and the wiring hole, so that the conductive sheet 204 and the outlet post 303, and the conductive sheet 204 and the wiring hole are tightly pressed together.

[0094] Specifically, on the basis of the above embodiments, for the assembly of the circuit connection device in the above example, the present application further provides a method for assembling the connection device.

[0095] Exemplarily, before assembly, it is necessary to first master the electrical parameters of the device to be connected that is connected to the circuit connection device, as well as the spatial layout inside the aircraft. For example, the above electrical parameters can be manifested as the range of current-carrying capacity supported by the device to be connected, and the above spatial layout can be manifested as specific parameters such as the shape and volume of the effective assembly space inside the aircraft.

[0096] On the basis of obtaining the relevant parameters, first, based on the above effective assembly space and the range of current-carrying capacity, determine the shape parameters of the circuit connection device to be selected and assembled, such as the first included angle of the first housing 201 or the second included angle of the conductive post 203, the diameter of the conductive post 203, the size of the wiring hole on the conductive post 203, etc.

[0097] Exemplarily, first, according to the shape of the effective assembly space inside the aircraft, the first included angle of the first housing 201 / the second included angle of the conductive post 203 can be determined. Secondly, according to the range of current-carrying capacity of the device to be connected, the corresponding diameter specification of the conductive post 203 is determined by referring to the national standard or industry standard, and then the actual diameter of the conductive post 203 is determined in combination with the above second included angle. Finally, the cone angle size of the wiring hole is correspondingly determined according to the upper limit of the range of current-carrying capacity (i.e., the maximum current-carrying capacity). In the case where the above various shape parameters are determined, directly select the circuit connection device with the above shape parameters to participate in the assembly.

[0098] It should be noted that if the circuit connection device selected according to the above method cannot be adapted to the spatial layout inside the aircraft, it may be that an error occurs when obtaining the specific parameters of the device to be connected and the internal space of the aircraft, or when determining the corresponding shape parameters of the circuit connection device according to the above specific parameters. In this case, re-obtain the specific parameters of the device to be connected and the internal space of the aircraft according to the actual situation, or re-calculate and determine the corresponding shape parameters of the circuit connection device.

[0099] Next, install the above circuit connection device at the corresponding position in the internal space of the aircraft according to the established assembly sequence.

[0100] Exemplarily, first connect the lead wire of the device to be connected to the blind hole of the conductive post 203 and fasten it, and then fixedly connect the third housing 101 to the outlet end of the device to be connected, and seal the connection between the two with the second seal 102.

[0101] Next, the third housing 101 and the first housing 201 are fixedly connected and sealed. The connection and sealing can be achieved by welding and then filling the weld with sealant, or by directly using a glue that combines connection and sealing, or by setting threads for threaded connection and using thread sealant for sealing. The specific connection and sealing methods can be selected according to the actual situation, and the present application does not make specific limitations.

[0102] Finally, screw the mating threads provided on the second housing 301 and the first housing 201 to achieve the fixed connection between the second housing 301 and the first housing 201. When the threads are already tightened, on the one hand, use thread sealant to seal the threads, and on the other hand, use the first seal 205 to seal the connection between the second housing 301 and the first housing 201.

[0103] During the process of screwing in the above-mentioned mating threads, the wire outlet post 303 and the wiring hole of the conductive post 203 gradually approach, contact, and press. When the threads between the second housing 301 and the first housing 201 are already tightened, the wire outlet post 303 and the wiring hole are tightly fitted through the conductive sheet 204. In this way, the assembly process of the circuit connection device is completed.

[0104] Please refer to Figure 3 , in some embodiments, the assembly method of the circuit connection device further includes:

[0105] 010: Detect the total resistance value between the wire outlet post 303 and the conductive post 203;

[0106] 011: When the resistance value exceeds the preset threshold range, replace the conductive sheet 204 and detect the total resistance value between the wire outlet post 303 and the conductive post 203 until the resistance value is within the preset threshold range.

[0107] Specifically, on the basis of the above embodiments, after the assembly of the circuit connection device is completed according to the above examples, for example, use a multimeter, an ohmmeter or other circuit detection instruments to measure the resistance value shown by the wire outlet post 303 and the conductive post 203 as a whole. The purpose of this is to detect the contact situation between the wire outlet post 303 and the wiring hole of the conductive post 203 in the circuit connection device. If the measured resistance value exceeds the preset threshold range, it can be determined that even though the assembly of the circuit connection device is completed through the process in the above examples, the contact and cooperation situation between the wire outlet post 303 and the conductive post 203 still does not meet the expectations, and the probability of poor contact and further more serious consequences is higher than expected.

[0108] In this case, the power supply should be immediately cut off, and the contact connection between the outgoing line terminal 303 and the conductive column 203 should be disconnected. Then, replace the conductive sheet 204 with a more suitable one according to the actual situation. When the conductive sheet 204 is replaced, the circuit connection devices are reassembled and powered on, continue to detect the resistance value shown by the outgoing line terminal 303 and the conductive column 203 as a whole. Repeat the above process until the resistance value falls within the preset threshold range. At this time, it can be determined that the circuit connection device after assembly is in a normal working state.

[0109] Please refer to Figure 4 , in some embodiments, step 03 includes:

[0110] 031: Determine the standard diameter corresponding to the conductive column 203 according to the current-carrying capacity;

[0111] 032: Determine the diameter of the conductive column 203 according to the standard diameter and the first included angle.

[0112] Specifically, on the basis of the above embodiments, for the diameter of the conductive column 203, exemplarily, the following formula can be used to determine:

[0113]

[0114] Wherein, D is the diameter of the conductive column 203, d is the diameter specification of the corresponding conductive column 203 determined according to the current-carrying capacity range of the device to be connected with reference to the national standard or industry standard, and α is the second included angle of the conductive column 203.

[0115] According to the above formula, before determining the diameter of the conductive column 203, first determine the specification range or specification standard value of the diameter of the conductive column 203 by referring to the national standard or industry standard according to the current-carrying capacity range of the device to be connected. In the case where there is only a specification range without a specification standard value, the midpoint of the specification range can be taken as the representative value of the range. Further, use the above representative value or specification standard value as d in the above formula, and further combine with the previously determined second included angle α of the conductive column 203, then the diameter of the conductive column 203 can be calculated.

[0116] Thus, the present application also provides an assembly method for use in conjunction with the above circuit connection device to ensure that all functions of the above circuit connection device are intact.

[0117] In the description of this specification, the descriptions referring to terms such as "certain embodiments", "in one example", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0118] Any process or method description shown in a flowchart or otherwise described herein can be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a specific logical function or process, and the scope of the preferred embodiments of the present application includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0119] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A circuit connection device, characterized in that, The circuit connection device includes a first connection part and a second connection part, and the first connection part is fixedly connected to the second connection part; The first connection part is provided with a conductive column, a wiring hole is arranged at the outgoing line end of the conductive column, the second connection part is provided with an outgoing line column, and the contact surface between the wiring hole and the outgoing line column has a preset taper, which is configured to be in contact and cooperate with each other to improve the current-carrying capacity of the surface of the wiring hole.

2. The circuit connection device according to claim 1, wherein The taper angle of the wiring hole ranges from 30° to 150°, and the value range of the difference between the taper angle of the wiring hole and the taper angle of the outgoing line column is from 30′ to 50′.

3. The circuit connection device according to claim 1, characterized in that, The first connection part includes a conductive sheet, and the conductive sheet is attached to the tapered surface of the wiring hole; The material of the conductive sheet meets the first preset condition, the first preset condition includes a conductivity condition and an elastoplastic condition, the area of the conductive sheet is 85% - 95% of the contact surface area between the wiring hole and the outgoing line column, and the thickness range of the conductive sheet is 2mm - 3mm.

4. The circuit connection device according to claim 1, wherein The first connection part includes a first housing, and the conductive column is covered by the first housing; A first insulating layer is arranged between the first housing and the conductive column, and the first insulating layer is used to prevent breakdown between the first housing and the conductive column.

5. The circuit connection device according to claim 4, wherein The first included angle and the second included angle of the first connection part are equal, where the first included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the first housing, and the second included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the conductive column, and the value range of the first included angle is 90° - 180°.

6. The circuit connection device according to claim 4, wherein The first connection part further includes a first seal, and the first seal is arranged between the first housing and the second connection part, and the first seal is used to seal the gap between the first connection part and the second connection part.

7. The circuit connection device according to claim 1, characterized in that, The second connection part further includes a second housing, the outgoing line column is covered by the second housing, and the inner wall of the second housing is threadedly connected to the outer wall of the first housing in the first connection part; A second insulating layer is arranged between the second housing and the outgoing line column, and the second insulating layer is used to prevent breakdown between the second housing and the outgoing line column.

8. The circuit connection device according to claim 1, characterized in that A blind hole is arranged at the incoming line end of the conductive column, and the blind hole is configured to be fixedly connected to the lead wire of the device to be connected.

9. The circuit connection device according to any one of claims 1-8, characterized in that, The circuit connection device further includes a third connection part, the third connection part includes a third housing, the third housing is fixedly connected to the first housing of the first connection part, and the third housing covers the conductive column.

10. The circuit connection device according to claim 9, characterized in that, The third connection part further includes a second seal, and the second seal is arranged on the outer surface of the third housing, and the second seal is used to seal the gap between the device to be connected and the third connection part.

11. An assembly method for a circuit connection device, characterized in that, The assembly method is used to assemble the circuit connection device according to any one of claims 1 - 10, and the assembly method includes: Obtaining the current-carrying capacity and the effective assembly space of the device to be connected; Determining the first included angle of the first connection part according to the effective assembly space, where the first included angle is the included angle between the axis of the incoming line end and the axis of the outgoing line end of the first housing; Determine the diameter of the conductive post according to the current-carrying capacity and the first included angle; Determine the taper angle size of the wiring hole according to the current-carrying capacity; Connect the lead wire of the device to be connected to the blind hole of the conductive post; Connect the third housing to the outgoing line end of the device to be connected and seal it; Connect the third housing to the first housing and seal it; Connect the second housing to the first housing and seal it; Control the contact fit between the outgoing line post and the wiring hole so that both between the conductive sheet and the outgoing line post and between the conductive sheet and the wiring hole are tightly pressed.

12. The assembly method according to claim 11, wherein The assembly method further includes: Detect the total resistance value between the outgoing line post and the conductive post; In the case where the resistance value exceeds the preset threshold range, replace the conductive sheet and detect the total resistance value between the outgoing line post and the conductive post until the resistance value is within the preset threshold range.

13. The assembly method according to claim 11, characterized in that, The step of determining the diameter of the conductive post according to the current-carrying capacity and the first included angle includes: Determine the standard diameter corresponding to the conductive post according to the current-carrying capacity; Determine the diameter of the conductive post according to the standard diameter and the first included angle.

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