Highly integrated copper bar switching structure

Abstract

The highly-integrated copper bar switching structure comprises a transmission shell, an opening is formed in the rear end of the transmission shell, a connecting base is installed in the transmission shell, one end of each copper bar is movably placed above the connecting end of the connecting base, and the other end of each copper bar penetrates out of the transmission shell; a first positioning assembly used for positioning the mounting position of the adapter is arranged between the adapter and the interior of the transmission shell, the adapter is mounted above the connecting base, elastic pressing pieces are arranged at the positions, corresponding to the copper bars, of the bottom of the adapter respectively, and the elastic pressing pieces make contact with the ends, at the connecting ends of the connecting base, of the copper bars respectively. When the rear end cover covers the opening of the transmission shell, the rear end cover applies downward pressure to the adapter, the elastic downward pressing piece on the adapter applies downward pressure to the copper bar at the connecting end of the connecting base, and the copper bar is fixed to the corresponding connecting end of the connecting base. The highly-integrated copper bar switching structure integrates multiple functions of copper bar elastic fixing, cooling, self-assembly positioning, wire clamping groove positioning, subsystem positioning and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of electric drive systems, and in particular to a highly integrated copper busbar transfer structure. Background Art

[0002] The electric drive assembly includes a motor stator assembly and a controller assembly. The current connection scheme for the electric drive assembly is that the three-phase output copper busbar of the motor stator is connected to the three-phase copper busbar of the controller assembly through a copper busbar connector, thereby achieving interconnection between the high voltage of the motor assembly and the high voltage of the controller assembly.

[0003] The copper busbar connector, the three-phase copper busbar adapter, and some installation components are separate. Connecting them involves assembling multiple components, which takes up a large structural space and has a low degree of integration. In the prior art, the copper busbar is installed using a conventional bolt connection scheme, where the copper busbar is fixed to the copper busbar connector with bolts, and then the copper busbar connector is fixed to the motor end cover with bolts. Because the connection surface dimension chain of the copper busbars at both ends is too large, it is easy to cause gaps or interference in the copper busbar overlap surface. When the assembly dimension chain is extremely poor, the following two phenomena will occur: large gaps are absorbed by the bolt preload, and the connection system is in a tensile state, which makes the connector leg prone to breakage during vibration tests; large preloads force an interference fit through the mating surface bolts, and the connection system is in a compressive state, which makes it easy for the connector and other subsystems to collapse. Furthermore, the conventional bolt connection scheme requires an electronically controlled cover to be opened, has many sub-components, and has a slow assembly cycle. Furthermore, there is a lack of a structure to cool the copper busbar. When the electric drive system is operating, the copper busbar temperature rises, and injection molded parts such as the copper busbar connector are prone to high-temperature failure. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned background technology, the present invention provides a highly integrated copper busbar adapter structure, which realizes the pre-tightening and fitting of the motor and the adapter copper busbar when the assembly is assembled through the structural characteristics of the adapter seat, and realizes the pre-tightening, fixing and support of the copper busbar through the cooperation of the elastic part (the elastic pressing part at the bottom of the adapter seat) and the end of the adapter seat, replacing the bolt connection and fixing of the copper busbar, making the connection structure as simple as possible, reducing costs while improving production rhythm, and absorbing the dimension chain of the shaft system through the elastic connection form, avoiding the occurrence of failure such as gap or interference in the copper busbar lap surface due to the connection surface dimension chain of the copper buses at both ends being too large, which in turn leads to the occurrence of failure such as breakage of the connecting seat.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a highly integrated copper busbar transfer structure, comprising a transmission housing, a copper busbar, a connecting seat, a transfer seat and a rear end cover;

[0007] The rear end of the transmission housing is provided with an opening, and the connecting seat is installed inside the transmission housing. A plurality of copper bars are located inside the transmission housing, and one end of the copper bar is movably placed above the connecting end of the connecting seat, and the other end of the copper bar passes through the transmission housing. A first positioning component for positioning the installation position of the adapter is provided between the adapter and the interior of the transmission housing, and the adapter is installed above the connecting seat, and elastic pressing pieces are respectively provided at the bottom of the adapter corresponding to the copper bar, and the elastic pressing pieces respectively contact the ends of the copper bars at the connecting end of the connecting seat, and when the rear end cover is provided on the opening of the transmission housing, it applies downward pressure to the adapter, and the elastic pressing piece on the adapter applies downward pressure to the copper bar at the connecting end of the connecting seat, fixing the copper bar on the corresponding connecting end of the connecting seat.

[0008] The adapter is structurally designed in the present application, and the adapter integrates a self-positioning feature and an elastic downward pressure fixing feature. Through the first positioning component, when the adapter is assembled, the self-positioning installation of the adapter is realized, and the elastic downward pressure piece at the bottom of the adapter is ensured to be in positive contact with the copper busbar of the connecting end of the connecting seat, and no fasteners are required to achieve the pre-positioning of the adapter. When the rear end cover is subsequently installed, it applies downward pressure to the adapter to press the adapter downward and fix it. The elastic downward pressure piece at the bottom of the adapter is in close elastic contact with the copper busbar of the connecting end of the corresponding connecting seat and is pressed down and fixed. The pre-tightening and support of the copper busbar are achieved through the cooperation of the elastic part (the elastic downward pressure piece at the bottom of the adapter) and the end of the connecting seat, replacing the bolt connection and fixing of the copper busbar solution, making the connection structure as simple as possible, reducing costs while improving production rhythm, and absorbing the dimension chain of the shaft system through the elastic connection form to avoid the occurrence of failure such as gap or interference in the copper busbar lap surface due to the connection surface dimension chain of the copper busbars at both ends being too large, thereby avoiding the occurrence of failure such as breakage of the connecting seat.

[0009] Furthermore, an oil inlet hole and multiple oil spray holes are opened at the bottom of the adapter, and the oil spray holes are respectively arranged in correspondence with the connecting end of the connecting seat. An oil channel connected to the oil inlet hole and multiple oil spray holes is formed inside the adapter.

[0010] The adapter is connected to the transmission case by an oil circuit. The fluid transported by the oil pipe is input into the inside of the adapter through the oil inlet hole, and then dispersed through the oil channel. It is then sprayed from each oil spray hole to the copper bar fixed at the connecting end of each connecting seat, thereby cooling the copper bar and reducing its temperature rise. This can avoid high-temperature failure of injection-molded parts such as the adapter and connecting seat, and the cross-sectional area of the copper bar can be designed to be smaller (to reduce costs). The sprayed fluid enters the transmission case and is then discharged through the oil pipe.

[0011] Furthermore, a slot is provided on the side of the adapter for cooperating with the oil pipe for fixed positioning.

[0012] Specifically, a plurality of slots may be provided on the side surface of the adapter to fix subsystem components (such as oil pipes) on the adapter.

[0013] Furthermore, a plurality of buckles are sequentially provided on the top side surface of the adapter along the length direction for cooperating with the low-voltage wire to fix the wiring.

[0014] The low-voltage wiring harness passes through the motor cavity into the gearbox housing, and is then fixed to the adapter with a snap fastener to fix the low-voltage wiring harness. The low-voltage wire does not need to be fixed with a wire clip, which results in fewer parts and reduces costs. The number of low-voltage wiring harness fixtures is reduced by about 6. The inner cavity of the gearbox housing is anti-interference, and the adapter acts as a shielding layer to separate high and low voltages, thereby improving the electromagnetic compatibility of the system.

[0015] Furthermore, support bosses are respectively provided at the top of the adapter and at the positions corresponding to the elastic downward pressure member, and the support bosses are connected by reinforcing ribs. A plurality of downward pressure columns are respectively provided on the inner side of the rear end cover, which cooperate with the ends of the support bosses and apply downward pressure.

[0016] Through the cooperation of the supporting boss on the top of the adapter and the downward pressure column on the inner side of the rear end cover, it is ensured that after the rear end cover is installed, sufficient and uniform downward pressure can be applied to the elastic downward pressure piece of the adapter, ensuring a uniform and stable elastic connection force between the elastic downward pressure piece and the copper busbar at the connecting end of the connecting seat, thereby ensuring the fixed fit and support of the copper busbar.

[0017] Furthermore, a second positioning assembly is provided between the rear end cover and the adapter seat for positioning the installation position of the rear end cover. Specifically, the second positioning assembly includes two second positioning posts and two second positioning slots. The two second positioning posts are respectively vertically arranged at the top ends of the support bosses located on both sides of the top of the adapter seat. The corresponding downward pressure post on the rear end cover has a second positioning slot formed at the end thereof to cooperate with the second positioning posts.

[0018] In order to facilitate the docking of the support boss on the top of the adapter and the downward pressure column on the inner side of the rear end cover, multiple positioning features are integrated on the adapter to solve the positioning problem of the rear end cover. Through the cooperation of the second positioning column and the second positioning groove, the rear end cover can be quickly and accurately assembled into place, ensuring that the downward pressure column on the inner side of the rear end cover and the support boss on the top of the adapter are docked one by one.

[0019] Furthermore, the elastic pressing member includes an elastomer and a pressing ball. A mounting groove is provided at the bottom of the adapter seat. The elastomer is installed in the mounting groove. The pressing ball is connected to the end of the elastomer, and the pressing ball partially extends out of the mounting groove. When subjected to a downward external force, the end of the pressing ball is in close elastic contact with the copper busbar of the corresponding connecting end of the connecting seat under the elastic force of the elastic member and is pressed down and fixed.

[0020] The elastic pressing piece is an elastic component that can provide a compressive reaction force. The elastic pressing piece at the bottom of the adapter seat cooperates with the end of the connecting seat to achieve pre-tightening and support of the copper busbar, replacing the bolt connection solution for fixing the copper busbar. This makes the connection structure as simple as possible, reducing costs while improving production time. In addition, the elastic connection form absorbs the dimension chain of the shaft system, avoiding the occurrence of gaps or interferences on the copper busbar overlap surface due to the excessive dimension chain of the connecting surface of the copper busbars at both ends, which in turn leads to failure such as fracture of the connecting seat. Specifically, a component structure can be used that cooperates with an elastic body (spring) and a pressing ball (steel ball).

[0021] Furthermore, the first positioning assembly includes two first positioning columns and two first positioning slots. The first positioning columns are symmetrically arranged vertically on both sides of the bottom of the adapter. The transmission housing is provided with first positioning slots respectively matched with the first positioning columns.

[0022] The first positioning component solves the problem of the adapter's own pre-positioning. When assembling the adapter, the first positioning columns on both sides of the bottom of the adapter are plugged and assembled into the first positioning grooves inside the transmission housing, thereby realizing the adapter's self-positioning installation and ensuring that the elastic downward pressure piece at the bottom of the adapter is in positive contact with the copper busbar at the connecting end of the connecting seat. No fasteners are required to achieve the pre-positioning of the adapter. When the rear end cover is subsequently installed, it applies downward pressure to the adapter to press the adapter downward and fix it.

[0023] Furthermore, the adapter is an injection-molded part made of plastic.

[0024] Since there is an oil channel structure inside the adapter, in order to facilitate processing and molding, the adapter includes two parts, the upper and lower parts, which are injection molded, and then spliced and ultrasonically welded to form a whole.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present application provides a structural design for the adapter, which integrates a self-positioning feature and an elastic downward pressing fixing feature. Through the first positioning component, when the adapter is assembled, the adapter is self-positioned and installed, and the elastic downward pressing piece at the bottom of the adapter is ensured to be in positive contact with the copper busbar at the connecting end of the connecting seat. No fasteners are required to achieve the pre-positioning of the adapter. When the rear end cover is subsequently installed, it applies downward pressure to the adapter to press the adapter downward and fix it. The elastic downward pressing piece at the bottom of the adapter is in close elastic contact with the copper busbar at the connecting end of the corresponding connecting seat and is pressed downward and fixed. Through the elastic part ( The cooperation between the elastic pressing piece at the bottom of the adapter and the end of the connecting seat realizes the pre-tightening, fixation and support of the copper busbar, and realizes the simple connection of the copper busbars at the motor and electronic control ends, replacing the solution of fixing the copper busbars with bolts, making the connection structure as simple as possible, reducing costs while improving production cycle, and absorbing the dimension chain of the shaft system through the elastic connection form to avoid the occurrence of failure such as breakage of the connecting seat due to the excessive dimension chain of the connection surface of the copper busbars at both ends, resulting in gaps or interference in the copper busbar joints. There is no need to open the electronic control cover or insert injection molding, which improves the production and assembly efficiency of the adapter and assembly.

[0027] 2. The adapter also has the function of active spraying to control the temperature of the copper bar. The adapter is connected to the transmission case to form an oil circuit. The fluid transported by the oil pipe is input into the inside of the adapter through the oil inlet hole, and then dispersed through the oil channel. It is then sprayed from each oil spray hole to the copper bar fixed at the connection end of each connector, cooling the copper bar to reduce the temperature rise of the copper bar. This can avoid high-temperature failure of injection-molded parts such as the adapter and connector, and the cross-sectional area of the copper bar can be designed to be smaller (to reduce costs). The sprayed fluid enters the transmission case and is then discharged through the oil pipe.

[0028] 3. By opening multiple slots on the side of the adapter, subsystem parts (such as oil pipes) are fixed to the adapter; by providing multiple buckles in sequence along the length direction on the top side of the adapter, the low-voltage wiring harness passes from the motor cavity into the gearbox housing, and then is fixed to the adapter by the buckles, thereby fixing the low-voltage wiring harness. The low-voltage wire does not need to be fixed with wire clips, fewer parts are needed, and costs are reduced. The number of low-voltage wiring harness fixings is reduced by about 6, the inner cavity of the gearbox housing is anti-interference, and the adapter acts as a shielding layer to separate high and low voltages, thereby improving the electromagnetic compatibility of the system.

[0029] 4. The coordination of the support boss on the top of the adapter and the pressure column on the inside of the rear end cover ensures that sufficient and uniform downward pressure can be applied to the elastic pressure piece of the adapter after installation, ensuring a uniform and stable elastic connection force between the elastic pressure piece and the copper busbar at the connecting end of the connector, thereby ensuring the fixed fit and support of the copper busbar. In order to facilitate the docking and coordination of the support boss on the top of the adapter and the pressure column on the inside of the rear end cover, multiple positioning features are integrated into the adapter to solve the positioning problem of the rear end cover. Through the coordination of the second positioning column and the second positioning groove, the rear end cover can be quickly and accurately assembled into place, ensuring that the pressure column on the inside of the rear end cover and the support boss on the top of the adapter are docked one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Figure 1 Schematic diagram of the overall structure of the highly integrated copper busbar transfer structure of the present invention;

[0032] Figure 2 This is a schematic structural diagram of the highly integrated copper busbar transfer structure after removing the rear end cover in the present invention;

[0033] Figure 3 This is a schematic diagram of the three-dimensional structure of the connector, adapter, and copper busbar after assembly in the present invention;

[0034] Figure 4 This is a schematic structural diagram of the bottom of the connector, adapter, and copper busbar after assembly in the present invention;

[0035] Figure 5 This is a schematic structural diagram of the bottom of the adapter in the present invention;

[0036] Figure 6 This is a schematic structural diagram of the top of the adapter in the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the rear end cover and the adapter seat in the present invention;

[0038] Among them, the specific drawings are marked as follows:

[0039] Transmission housing 1, copper busbar 2, connecting seat 3, adapter seat 4, elastic pressing part 5, mounting groove 6, pressing ball 7, supporting boss 8, reinforcing rib 9, oil inlet hole 11, oil injection hole 12, slot 13, buckle 14, rear end cover 15, pressing column 16, first positioning assembly 17, first positioning column 18, first positioning groove 19, second positioning column 20. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] The embodiment of the present invention discloses a highly integrated copper busbar transfer structure, such as Figures 1 to 6 As shown, it includes a transmission housing 1, a copper bar 2, a connecting seat 3, an adapter seat 4 and a rear end cover 15; the transmission housing 1 is provided with an opening at the rear end, and a connecting seat 3 is installed inside the transmission housing 1. Multiple copper bars 2 are located inside the transmission housing 1, and one end of the copper bar 2 is movably placed above the connecting end of the connecting seat 3, and the other end of the copper bar 2 passes through the transmission housing 1. A first positioning component 17 for positioning the installation position of the adapter seat 4 is provided between the adapter seat 4 and the interior of the transmission housing 1, and the adapter seat 4 is installed above the connecting seat 3. Elastic pressing parts 5 are respectively provided at the bottom of the adapter seat 4 corresponding to the copper bar 2. The elastic pressing parts 5 respectively contact the ends of the copper bar 2 located at the connecting end of the connecting seat 3. When the rear end cover 15 is covered on the opening of the transmission housing 1, it applies downward pressure to the adapter seat 4, and the elastic pressing parts 5 on the adapter seat 4 apply downward pressure to the copper bar 2 at the connecting end of the connecting seat 3, fixing the copper bar 2 on the corresponding connecting end of the connecting seat 3. In the present application, the adapter 4 is structurally designed, and the adapter 4 integrates a self-positioning feature and an elastic downward pressing fixing feature. Through the first positioning component 17, when the adapter 4 is assembled, the self-positioning installation of the adapter 4 is realized, and the elastic downward pressing piece 5 at the bottom of the adapter 4 is ensured to be in positive contact with the copper bus 2 at the connecting end of the connecting seat 3. No fasteners are required to realize the pre-positioning of the adapter 4. When the rear end cover 15 is subsequently installed, it applies downward pressure to the adapter 4 to press the adapter 4 downward and fix it. The elastic downward pressing piece 5 at the bottom of the adapter 4 is in contact with the corresponding connecting end of the connecting seat 3. The copper busbar 2 at the connecting end is in close elastic contact and is pressed down to be fixed. The pre-tightening, fixing and support of the copper busbar 2 are achieved through the cooperation of the elastic part (the elastic pressing part 5 at the bottom of the adapter 4) and the end of the connecting seat 3. This replaces the solution of fixing the copper busbar 2 with bolts, makes the connection structure as simple as possible, reduces costs and improves production rhythm, and absorbs the dimension chain of the shaft system through the elastic connection form, avoiding the occurrence of gaps or interferences on the lap joints of the copper busbar 2 due to the excessive dimension chain of the connection surfaces of the copper busbars 2 at both ends, which in turn leads to failures such as breakage of the connecting seat 3.

[0042] Among them, such as Figure 4 and Figure 5As shown, the bottom of the adapter 4 is provided with an oil inlet 11 and a plurality of oil spray holes 12. The oil spray holes 12 are respectively arranged one by one in the upper and lower correspondence with the connecting end of the connecting seat 3. An oil channel connected to the oil inlet 11 and the plurality of oil spray holes 12 is formed inside the adapter 4. The adapter 4 forms an oil circuit connection with the transmission housing 1. The fluid transported by the oil pipe is input into the inside of the adapter 4 through the oil inlet 11, and then dispersed through the oil channel, and then sprayed from each oil spray hole 12 to the copper bar 2 fixed at the connecting end of each connecting seat 3, cooling the copper bar 2 to reduce the temperature rise of the copper bar 2. It can avoid high-temperature failure of injection molded parts such as the adapter 4 and the connecting seat 3, and the cross-sectional area of the copper bar 2 can be designed to be smaller (to reduce costs). The ejected fluid enters the transmission housing 1 and is then discharged by the oil pipe. Through the above-mentioned structural design, the adapter 4 also has the function of active spraying to control the temperature of the copper bar 2.

[0043] Among them, Figure 6 As shown, a slot 13 for cooperating with the oil pipe for fixed positioning is provided on the side of the adapter 4. Specifically, a plurality of slots 13 can be provided on the side of the adapter 4 for fixing subsystem parts (such as the oil pipe) on the adapter 4. A plurality of buckles 14 for cooperating with the low-voltage wires for fixing the wiring are provided in sequence along the length direction on the top side of the adapter 4. The low-voltage wiring harness passes from the motor cavity into the transmission case 1, and is then fixed to the adapter 4 by the buckle 14 to fix the low-voltage wiring harness. The low-voltage wire does not need to be fixed with a wire clip, and there are fewer parts, which reduces costs and reduces the number of low-voltage wiring harness fixings by about 6. The inner cavity of the transmission case 1 is anti-interference, and the adapter 4 acts as a shielding layer to separate the high and low voltages, thereby improving the electromagnetic compatibility of the system.

[0044] Among them, Figure 6 and Figure 7 As shown, support bosses 8 are respectively provided at the top of the adapter seat 4 and at the positions corresponding to the elastic pressing member 5. The support bosses 8 are connected by reinforcing ribs 9. A plurality of pressing columns 16 are provided on the inner side of the rear end cover 15, which respectively cooperate with the ends of the support bosses 8 and apply downward pressure. The cooperation between the support bosses 8 on the top of the adapter seat 4 and the pressing columns 16 on the inner side of the rear end cover 15 ensures that the rear end cover 15 can apply sufficient and uniform downward pressure to the elastic pressing member 5 of the adapter seat 4 after installation, ensuring a uniform and stable elastic connection force between the elastic pressing member 5 and the copper busbar 2 at the connecting end of the connecting seat 3, thereby ensuring the fixed fit and support of the copper busbar 2.

[0045] Among them, a second positioning component for positioning the installation position of the rear end cover 15 is provided between the rear end cover 15 and the adapter seat 4. Specifically, the second positioning component includes two second positioning columns 20 and two second positioning grooves (not shown in the figure). The two second positioning columns 20 are respectively vertically arranged at the top of the support bosses 8 on both sides of the top of the adapter seat 4, and the corresponding end of the lower pressure column 16 on the rear end cover 15 is provided with a second positioning groove that cooperates with the second positioning column 20. In order to facilitate the docking and matching of the support boss 8 on the top of the adapter seat 4 and the lower pressure column 16 on the inner side of the rear end cover 15, multiple positioning features are integrated on the adapter seat 4 to solve the positioning problem of the rear end cover 15. Through the cooperation of the second positioning column 20 and the second positioning groove, the rear end cover 15 can be quickly and accurately assembled into place, ensuring that the lower pressure column 16 on the inner side of the rear end cover 15 is docked one by one with the support boss 8 on the top of the adapter seat 4.

[0046] Among them, such as Figure 4 and Figure 5 As shown, the elastic pressing member 5 includes an elastomer (not shown in the figure) and a pressing ball 7. A mounting groove 6 is provided at the bottom of the adapter 4. The elastomer is installed in the mounting groove 6. The pressing ball 7 is connected to the end of the elastomer, and the pressing ball 7 partially extends out of the mounting groove 6. When subjected to a downward external force, the end of the pressing ball 7 is in close elastic contact with the copper bus 2 at the connecting end of the corresponding connecting seat 3 under the elastic force of the elastic member and is pressed down and fixed. The elastic pressing member 5 is an elastic part that can provide a compression reaction force. The elastic pressing member 5 at the bottom of the adapter 4 cooperates with the end of the connecting seat 3 to achieve pre-tightening and support of the copper bus 2, replacing the bolt connection and fixing scheme of the copper bus 2, making the connection structure as simple as possible, reducing costs while improving production rhythm, and absorbing the dimension chain of the shaft system through the elastic connection form to avoid the occurrence of failures such as the connection surface dimension chain of the copper bus 2 at both ends being too large, resulting in gaps or interferences on the lap surface of the copper bus 2, and then causing the connecting seat 3 to break. Specifically, a component structure in which an elastic body (spring) and a downward-pressing ball 7 (steel ball) cooperate with each other can be adopted.

[0047] Among them, such as Figure 2 and Figure 6As shown, the first positioning assembly 17 includes two first positioning posts 18 and two first positioning slots 19. The first positioning posts 18 are symmetrically arranged vertically on both sides of the bottom of the adapter 4, and the transmission housing 1 is provided with first positioning slots 19 that respectively cooperate with the first positioning posts 18. The first positioning assembly 17 solves the problem of the self-pre-positioning of the adapter 4. When assembling the adapter 4, the first positioning posts 18 on both sides of the bottom of the adapter 4 are plugged and assembled into the first positioning slots 19 inside the transmission housing 1, realizing the self-positioning installation of the adapter 4 and ensuring that the elastic downward pressing member 5 at the bottom of the adapter 4 is in positive contact with the copper busbar 2 at the connecting end of the connecting seat 3. No fasteners are required to realize the pre-positioning of the adapter 4. When the rear end cover 15 is subsequently installed, it applies downward pressure to the adapter 4 to press the terminal block downward and fix it.

[0048] The adapter 4 is an injection molded plastic part. Due to the oil channel structure inside the adapter 4, in order to facilitate processing and molding, the adapter 4 includes two parts, the upper and lower parts, which are injection molded and then spliced and ultrasonically welded to form a whole.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A highly integrated copper busbar transfer structure, characterized in that: Including transmission housing, copper bar, connecting seat, adapter seat and rear end cover; The rear end of the transmission housing is provided with an opening, and the connecting seat is installed inside the transmission housing. A plurality of copper bars are located inside the transmission housing, and one end of the copper bar is movably placed above the connecting end of the connecting seat, and the other end of the copper bar passes through the transmission housing. A first positioning component for positioning the installation position of the adapter is provided between the adapter and the interior of the transmission housing, and the adapter is installed above the connecting seat, and elastic pressing pieces are respectively provided at the bottom of the adapter corresponding to the copper bar, and the elastic pressing pieces respectively contact the ends of the copper bars at the connecting end of the connecting seat, and when the rear end cover is provided on the opening of the transmission housing, it applies downward pressure to the adapter, and the elastic pressing piece on the adapter applies downward pressure to the copper bar at the connecting end of the connecting seat, fixing the copper bar on the corresponding connecting end of the connecting seat.

2. The highly integrated copper busbar transfer structure according to claim 1, characterized in that: An oil inlet hole and multiple oil spray holes are provided at the bottom of the adapter seat. The oil spray holes are respectively arranged in correspondence with the connecting end of the connecting seat. An oil channel connected to the oil inlet hole and multiple oil spray holes is formed inside the adapter seat.

3. The highly integrated copper busbar transfer structure according to claim 2, characterized in that: A slot for cooperating with the oil pipe to perform fixed limiting is provided on the side surface of the adapter.

4. The highly integrated copper busbar transfer structure according to claim 1, characterized in that: A plurality of buckles are sequentially provided on the top side surface of the adapter along the length direction to cooperate with the low-voltage wire to fix the wiring.

5. The highly integrated copper busbar transfer structure according to claim 1, characterized in that: A supporting boss is provided at the top of the adapter and at the corresponding position of the elastic pressing member. The supporting bosses are connected by reinforcing ribs. A plurality of pressing columns are provided on the inner side of the rear end cover, which respectively cooperate with the end of the supporting boss to apply downward pressure.

6. The highly integrated copper busbar transfer structure according to claim 5, characterized in that: The elastic pressing member includes an elastomer and a pressing ball. A mounting groove is provided at the bottom of the adapter seat. The elastomer is installed in the mounting groove. The pressing ball is connected to the end of the elastomer, and the pressing ball partially extends out of the mounting groove. When subjected to a downward external force, the end of the pressing ball is in close elastic contact with the copper busbar of the connecting end of the corresponding connecting seat under the elastic force of the elastic member and is pressed down and fixed.

7. The highly integrated copper busbar transfer structure according to claim 5 or 6, characterized in that: A second positioning component for positioning the installation position of the rear end cover is provided between the rear end cover and the adapter seat.

8. The highly integrated copper busbar transfer structure according to claim 7, characterized in that: The second positioning assembly includes two second positioning columns and two second positioning slots. The two second positioning columns are vertically arranged at the top of the supporting bosses on both sides of the top of the adapter seat, and the corresponding lower pressure column end on the rear end cover is provided with a second positioning slot that cooperates with the second positioning column.

9. The highly integrated copper busbar transfer structure according to claim 1, characterized in that: The first positioning assembly includes two first positioning columns and two first positioning slots. The first positioning columns are symmetrically arranged vertically on both sides of the bottom of the adapter. The transmission housing is provided with first positioning slots that respectively cooperate with the first positioning columns.

10. The highly integrated copper busbar transfer structure according to claim 1, characterized in that: The adapter is an injection molded part made of plastic.

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