A terminal post for laminated inter-module power bus transfer

Abstract

The utility model relates to the technical field of multi -module integrated power equipment provides a wiring post for power bus switching between laminated modules, the switching wiring post includes wiring post body, fixed screw, external wiring post, external insulation cover, internal insulation cover and fixed nut, the fixed screw is connected with wiring post body, the external wiring post is established between fixed screw and wiring post body, the external insulation cover, internal insulation cover all are covered and are established in the outer circumferential side of wiring post body, the fixed nut is connected with wiring post body threadedly. All laminated modules share an external wiring post, the wiring post body is connected with the external wiring post in each module through the fixed screw, realizes the effective switching of power bus to each module, stably guarantees the power supply of each module, the welding of each module is connected through the welding portion of wiring post body, and the switching structure between modules is convenient to dismount, reduces the operation difficulty of debugging, overhaul.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-module integrated power equipment, and in particular to a terminal block for power bus switching between stacked modules. Background Technology

[0002] In the field of aerospace engineering, aerospace single-unit products are the core components of aerospace systems. Their reliability and safety directly determine the success or failure of the entire aerospace mission. Therefore, in the product design process, it is necessary to establish a strict signal management mechanism. This not only requires accurate identification and differentiation of different types of signals, but also requires multi-point differentiated design based on the reliability level requirements and derating design specifications of each signal, so as to ensure the overall stable operation and safety performance of the product.

[0003] In the internal structure of aerospace single-unit products, signal transfer between different functional modules usually relies on internal bus connectors, which are the key carriers for signal interaction between modules. According to industry-standard technical parameters, the single-point current carrying capacity of a conventional internal bus connector is 3A. However, according to the stringent requirements of Class I derating design, in order to further improve product reliability and reduce the risk of component loss, its actual single-point design current must be controlled within 1.5A.

[0004] However, in aerospace applications requiring high-current transmission, the transmission between the positive and negative ends of the power bus often occupies a large number of contacts on the internal bus connectors. This directly leads to a shortage of available contact resources in the connectors, which in turn significantly restricts the contact layout planning and subsequent wiring design for other types of signals (such as control signals and detection signals), becoming a key technical bottleneck affecting the design efficiency and layout rationality of aerospace products. Utility Model Content

[0005] This invention provides a terminal block for power bus switching between stacked modules, which solves the above problems by designing a separate and reliable power bus wiring method.

[0006] To achieve the above objectives, this utility model provides a terminal block for power bus conversion between stacked modules. The conversion terminal block includes a terminal block body, a fixing screw, an outer terminal block, an outer insulating sleeve, an inner insulating sleeve, and a fixing nut. The fixing screw is connected to the terminal block body, the outer terminal block is disposed between the fixing screw and the terminal block body, the outer insulating sleeve and the inner insulating sleeve are both sleeved on the outer periphery of the terminal block body, and the fixing nut is threadedly connected to the terminal block body.

[0007] Furthermore, the terminal body includes a fixing part, a first insulating part, a second insulating part, and a welding part arranged in sequence. An external thread is provided between the second insulating part and the welding part, and the external thread is threadedly connected to the fixing nut. The outer insulating sleeve is fitted onto the first insulating part, and the inner insulating sleeve is fitted onto the second insulating part.

[0008] Furthermore, the fixing part is a solid cylinder, and the fixing part is provided with a connecting hole. The connecting hole is provided with an internal thread, which is used to connect with a fixing screw.

[0009] Furthermore, the cross-section of the first insulating part is oval.

[0010] Furthermore, both the second insulating part and the welding part are solid cylinders.

[0011] Furthermore, the diameter of the fixing part is larger than the diameter of the first insulating part and the welding part, and the diameter of the second insulating part is equal to the diameter of the welding part.

[0012] Furthermore, the external terminal block is flat and has at least one fixed through hole. The number of fixed through holes is the same as the number of stacked modules, and the fixed through holes are arranged collinearly in the vertical direction.

[0013] Furthermore, the outer insulating sleeve includes an outer insulating sleeve body and a first protruding end, the outer insulating sleeve body and the first protruding end are integrally formed, the outer insulating sleeve has a first waist-shaped through hole, and the inner edge of the first protruding end has a groove.

[0014] Furthermore, the inner insulating sleeve includes an inner insulating sleeve body and a second protruding end, the inner insulating sleeve body and the second protruding end are integrally formed, the inner insulating sleeve is provided with a second waist-shaped through hole, and a protrusion is provided at the inner edge of the second protruding end, the protrusion is matched with the groove, and the protrusion is placed in the groove.

[0015] Furthermore, each module has a placement groove on one side, and the placement groove has an oblong connection hole. The second insulating part and the welding part of the terminal block body are placed inside the placement groove, and the fixing part and the first insulating part are placed outside the placement groove.

[0016] This utility model has the following beneficial effects:

[0017] (1) In this utility model, all the stacked modules share an external terminal block. Each module connects the terminal block body to the external terminal block by fixing screws, realizing the effective transfer of the power bus to each module and ensuring the stable power supply of each module. The internal connection of each module is through the welding part of the terminal block body. The transfer structure between modules is easy to disassemble, reducing the difficulty of debugging and maintenance.

[0018] (2) In this utility model, the contact surface between the fixing part of the terminal body and the external terminal is smooth and has a large contact area, which reduces the contact resistance and improves the conductivity and current carrying capacity.

[0019] (3) In this utility model, the external terminal block and the welding part are placed inside and outside the module respectively. The positive and negative terminals of the power bus are separated by placing a groove to avoid interference from other wiring and abnormal short circuits caused by extraneous objects, thus ensuring the stability of power transmission.

[0020] (4) In this utility model, the first insulating part and the second insulating part of the terminal block body are respectively fitted with an outer insulating sleeve and an inner insulating sleeve, which ensures insulation from the product shell and maintains a safe distance from other conductive materials, effectively avoiding the risk of leakage.

[0021] (5) In this utility model, the protrusion of the inner insulating sleeve is placed in the groove of the outer insulating sleeve, so that there is no straight gap between the terminal body and the product shell, which can effectively avoid the formation of electric arc when the current is too large. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the adapter terminal in this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the terminal block body in this utility model.

[0024] Figure 3 This is a schematic diagram of the external terminal block in this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the external insulating sleeve in this utility model.

[0026] Figure 5 This is a schematic diagram of the internal insulating sleeve in this utility model.

[0027] Figure 6 This is a schematic diagram of the adapter terminal installed inside the module in this utility model.

[0028] Figure 7 This is an external schematic diagram of the transfer terminal installed on the stacked module in this utility model. Detailed Implementation

[0029] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. However, this embodiment is not intended to limit this utility model. Any similar structure or similar variation of this utility model should be included in the protection scope of this utility model. The commas in this utility model all indicate the relationship between and. The English letters in this utility model are case-sensitive.

[0030] like Figure 1 As shown, this utility model provides a terminal block for power bus conversion between stacked modules. The conversion terminal block includes a terminal block body 1, a fixing screw 2, an outer terminal block 3, an outer insulating sleeve 4, an inner insulating sleeve 5, and a fixing nut 6. The fixing screw 2 is connected to the terminal block body 1. The outer terminal block 3 is disposed between the fixing screw 2 and the terminal block body 1. The outer insulating sleeve 4 and the inner insulating sleeve 5 are both sleeved on the outer periphery of the terminal block body 1. The fixing nut 6 is threadedly connected to the terminal block body 1. The terminal block body 1 is insulated from the product shell by the outer insulating sleeve 4 and the inner insulating sleeve 5, and maintains a safe distance from other conductive materials. The outer insulating sleeve 4 and the inner insulating sleeve 5 are made of special polyimide.

[0031] like Figure 2 As shown, the terminal body 1 includes a fixing part 11, a first insulating part 12, a second insulating part 13, and a welding part 14 arranged sequentially. An external thread 15 is provided between the second insulating part 12 and the welding part 13, and the external thread 15 is threadedly connected to the fixing nut 6. An external insulating sleeve 4 is fitted onto the first insulating part 12, and an internal insulating sleeve 5 is fitted onto the second insulating part 13. The surface of the welding part 14 is smooth and used for wire welding. The fixing part 11 is a solid cylinder with a connecting hole 111 containing an internal thread for connection with a fixing screw 2. The first insulating part 12 has an oval cross-section. The second insulating part 13 and the welding part 14 are both solid cylinders. The diameter of the fixing part 11 is larger than the diameters of the first insulating part 12 and the welding part 14, while the diameters of the second insulating part 13 and the welding part 14 are equal. The surface of the fixing part 11 is smooth. By making the diameter of the fixing part 11 as large as possible, the contact surface with the external terminal 3 is increased. The larger the contact surface, the smaller the contact resistance, which reduces the loss of electrical energy at the connection point. A larger contact surface can disperse pressure, making it less prone to loosening in vibration and impact environments, and reducing the probability of poor contact failure.

[0032] like Figure 3As shown, the external terminal block 3 is flat and has at least one fixing through hole 31. The number of fixing through holes 31 is the same as the number of stacked modules, and the fixing through holes 31 are arranged collinearly in the vertical direction. All stacked modules share one external terminal block 3, which simplifies wiring and layout, reduces the number of external wires and wiring complexity, saves installation space, and reduces costs and maintenance difficulty.

[0033] like Figure 4 As shown, the outer insulating sleeve 4 includes an outer insulating sleeve body 41 and a first protruding end 42. The outer insulating sleeve body 41 and the first protruding end 42 are integrally formed. The outer insulating sleeve 4 has a first waist-shaped through hole 40 inside, and a groove 421 is provided at the inner edge of the first protruding end 42.

[0034] like Figure 5 As shown, the inner insulating sleeve 5 includes an inner insulating sleeve body 51 and a second protruding end 52. The inner insulating sleeve body 51 and the second protruding end 52 are integrally formed. The inner insulating sleeve 5 has a second waist-shaped through hole 50. The inner edge of the second protruding end 52 has a protrusion 521. The protrusion 521 is matched with the groove 421. The protrusion 521 is placed in the groove 421 so that there is no straight gap between the terminal body 1 and the product shell, which can effectively avoid the formation of an electric arc when the current is too large.

[0035] like Figure 6-7 As shown, each layer module 7 has a placement groove 71 on one side, which makes the positive and negative terminals of the power bus independent and not affected by other wiring, and also avoids abnormal short circuits caused by extraneous objects, effectively improving the reliability and safety of the product; the placement groove 71 has an oblong connection hole 711, which can prevent each layer module from rotating during the fastening process with the terminal body 1, resulting in incomplete tightening; the second insulating part 13 and the welding part 14 of the terminal body 1 are placed inside the placement groove, and the fixing part 11 and the first insulating part 12 are placed outside the placement groove 71.

[0036] In this invention, all the stacked modules share a common external terminal block. Each module connects the terminal block body to the external terminal block by fixing screws, realizing effective transfer from the power bus to each module and ensuring stable power supply to each module. The internal connections of each module are made through the welded part of the terminal block body. The transfer structure between modules is easy to disassemble, reducing the difficulty of debugging and maintenance.

[0037] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

Claims

1. A terminal block for power bus switching between stacked modules, characterized in that, The adapter terminal includes a terminal body, a fixing screw, an outer terminal, an outer insulating sleeve, an inner insulating sleeve, and a fixing nut. The fixing screw is connected to the terminal body, the outer terminal is located between the fixing screw and the terminal body, the outer insulating sleeve and the inner insulating sleeve are both sleeved on the outer periphery of the terminal body, and the fixing nut is threadedly connected to the terminal body.

2. A terminal block for power bus switching between stacked modules according to claim 1, characterized in that, The terminal block body includes a fixing part, a first insulating part, a second insulating part and a welding part arranged in sequence. An external thread is provided between the second insulating part and the welding part, and the external thread is threadedly connected to the fixing nut. The outer insulating sleeve is fitted on the first insulating part, and the inner insulating sleeve is fitted on the second insulating part.

3. A terminal block for power bus switching between stacked modules according to claim 2, characterized in that, The fixing part is a solid cylinder, and the fixing part is provided with a connecting hole. The connecting hole is provided with an internal thread, which is used to connect with a fixing screw.

4. A terminal block for power bus switching between stacked modules according to claim 2, characterized in that, The cross-section of the first insulating part is oval.

5. A terminal block for power bus switching between stacked modules according to claim 2, characterized in that, Both the second insulating part and the welding part are solid cylinders.

6. A terminal block for power bus switching between stacked modules according to claim 5, characterized in that, The diameter of the fixing part is larger than the diameter of the first insulating part and the welding part, and the diameter of the second insulating part is equal to that of the welding part.

7. A terminal block for power bus switching between stacked modules according to claim 1, characterized in that, The external terminal block is flat and has at least one fixed through hole. The number of fixed through holes is the same as the number of stacked modules, and the fixed through holes are arranged collinearly in the vertical direction.

8. A terminal block for power bus switching between stacked modules according to claim 1, characterized in that, The outer insulating sleeve includes an outer insulating sleeve body and a first protruding end, the outer insulating sleeve body and the first protruding end are integrally formed, the outer insulating sleeve has a first waist-shaped through hole, and the inner edge of the first protruding end has a groove.

9. A terminal block for power bus transition between stacked modules according to claim 8, characterized in that, The inner insulating sleeve includes an inner insulating sleeve body and a second protruding end, which are integrally formed. The inner insulating sleeve has a second waist-shaped through hole, and a protrusion is provided at the inner edge of the second protruding end. The protrusion is matched with the groove and is placed in the groove.

10. A terminal block for power bus switching between stacked modules according to claim 2, characterized in that, Each module has a placement groove on one side, and the placement groove has an oblong connection hole. The second insulating part and the welding part of the terminal block body are placed inside the placement groove, and the fixing part and the first insulating part are placed outside the placement groove.

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