Wire holder, manufacturing method thereof and electric driving system

Abstract

The invention relates to the technical field of vehicles, in particular to a wire holder, a manufacturing method thereof and an electric driving system. According to the technical scheme, the injection mold suitable for the shape and the function of the wire holder body is designed. And the copper bar assembly and the low-voltage connecting assembly can be inserted into the mold. The copper bar assembly and the low-voltage connecting assembly are placed at preset positions of the mold, the copper bar is usually used as a conductive part, and the low-voltage connecting assembly is used for electrical connection. And heating the plastic raw material to a molten state, and injecting into the mold. And the plastic is cooled and cured in the mold to form the wire holder main body. The plastic surrounds the copper bar and the low-voltage connector in the mold, so that the copper bar and the low-voltage connector are fixed in the main body to form the wire holder. Since the first sealing element is integrally fixed on the copper bar, the first sealing element can be tightly attached to the wire holder main body subjected to injection molding in the injection molding process that the plastic raw material is heated to a molten state and then injected into a mold, and the sealing performance of the whole wire holder is further improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a terminal block and a preparation method thereof, and an electric drive system. Background Art

[0002] Due to people's need for transportation, cars have been widely integrated into people's daily lives and appeared in the public eye. Terminal blocks in modern cars are more than simple connectors. They are an important part of ensuring the normal operation and efficient maintenance of the electric drive system, which directly affects the performance, safety and reliability of the car.

[0003] At present, the structure of the terminal block is complex, the installation structure is diverse, and the terminal block parts have no sealing ability or poor sealing performance, which cannot ensure the reliable operation of the electric drive system. Summary of the invention

[0004] Based on this, the present application provides a terminal block and a manufacturing method thereof, and an electric drive system to improve the sealing performance of the terminal block, thereby enabling the electric drive system to operate reliably.

[0005] In the first aspect, an embodiment of the present application provides a terminal block, which includes a terminal block body, a copper busbar assembly, and a low-voltage connection assembly. The terminal block body is configured with a plastic material, and the terminal block body has a first mounting portion and a second mounting portion, and the second mounting portion has an accommodating cavity. The copper busbar assembly includes a first seal and a copper busbar, and the copper busbar is used to connect the high-voltage line, and the first seal is integrally fixed on the outer peripheral surface of the copper busbar. The low-voltage connection assembly is installed in the accommodating cavity. Among them, the terminal block body is formed by injection molding with the help of the copper busbar assembly and the low-voltage connection assembly placed in a mold. The first mounting portion, the first seal and the copper busbar are integrally connected through an injection molding process; the second mounting portion and the low-voltage connection assembly are integrally connected through an injection molding process.

[0006] In one embodiment, the terminal block body includes a first support; the first mounting portion includes a plurality of sub-mounting portions all disposed on the first support, all the sub-mounting portions are disposed sequentially in a first direction, all the sub-mounting portions extend out of the first support in a second direction, and all the sub-mounting portions are fixedly connected to the copper busbar. The first direction is perpendicular to the second direction.

[0007] In one embodiment, a plurality of glue holes penetrating along the third direction are provided on the first support corresponding to all the sub-mounting parts, the glue holes are arranged one by one corresponding to the sub-mounting parts, and the glue holes are filled with glue to fix the copper busbar and the first mounting part;

[0008] The first direction, the second direction and the third direction are perpendicular to each other.

[0009] In one embodiment, the first mounting portion and the second mounting portion are spaced apart in the first direction, and the second mounting portion is extended in the second direction.

[0010] In one embodiment, a plurality of first threaded holes are formed on the first support;

[0011] The wiring seat also includes a reinforcement member, which is arranged around the first threaded hole.

[0012] In one embodiment, the terminal block also includes a second support abutting against a side surface of the first support; a plurality of second threaded holes are opened on the second support corresponding to all the first threaded holes, the first threaded holes and the second threaded holes are arranged one by one, and the reinforcement member includes the second threaded holes.

[0013] In one embodiment, the copper busbar has a contact portion, and the contact portion is arranged corresponding to the first sealing member; and / or

[0014] The wiring seat also includes a magnetic ring, which is sleeved on the outer circumference of the copper busbar.

[0015] In one embodiment, the low voltage connection assembly includes:

[0016] A pin, fixedly connected to the second mounting portion;

[0017] The insert is provided with a plurality of mounting holes, and the insert and the pin are fixedly connected by means of the mounting holes.

[0018] In one embodiment, a plurality of balancing holes are formed on the insert.

[0019] In a second aspect, an embodiment of the present application provides a method for manufacturing a terminal block, which is used to manufacture the above-mentioned terminal block, and the terminal block includes a terminal block body, a copper busbar assembly, and a low-voltage connection assembly. The terminal block body is configured with a plastic material, and the terminal block body has a first mounting portion and a second mounting portion, and the second mounting portion has an accommodating cavity. The copper busbar assembly includes a first seal and a copper busbar, and the copper busbar is used to connect the high-voltage line, and the first seal is integrally fixed on the outer peripheral surface of the copper busbar. The low-voltage connection assembly is installed in the accommodating cavity. Among them, the terminal block body is formed by injection molding by placing the copper busbar assembly and the low-voltage connection assembly in a mold. The first mounting portion, the first seal and the copper busbar are integrally connected by an injection molding process; the second mounting portion and the low-voltage connection assembly are integrally connected by an injection molding process. The preparation method includes integrating the first seal on the copper busbar to form a copper busbar assembly; placing the copper busbar assembly and the low-voltage connection assembly in an injection mold, and filling the injection mold with injection plastic, so that the first mounting portion and the first seal are integrally connected to the copper busbar, and the second mounting portion is integrally connected to the low-voltage connection assembly to form a terminal block.

[0020] In one embodiment, the integration process includes a vulcanization process.

[0021] In one embodiment, the first mounting portion includes a plurality of sub-mounting portions all arranged on the first support, and the first support is provided with a plurality of glue holes penetrating along the third direction corresponding to all the sub-mounting portions, the glue holes are arranged one by one corresponding to the sub-mounting portions, the glue holes are filled with glue, and the low-voltage connection assembly includes a pin and an insert connected to each other;

[0022] The copper busbar assembly and the low-voltage connection assembly are placed in an injection mold, and the injection mold is filled with injection plastic, so that the first mounting portion and the first sealing member are injection-molded as one with the copper busbar, and the second mounting portion is injection-molded as one with the low-voltage connection assembly to form a terminal block, and then the following steps are included:

[0023] Pour glue into the glue placement hole to bond the copper busbar and the first mounting portion;

[0024] Pour glue into the accommodating cavity to bond the pin, the insert and the second mounting portion.

[0025] In a third aspect, an embodiment of the present application provides an electric drive system, which includes the above-mentioned terminal block, a motor and an inverter. The terminal block includes a terminal block body, a copper busbar assembly and a low-voltage connection assembly. The terminal block body is configured as a plastic material, and the terminal block body has a first mounting portion and a second mounting portion, and the second mounting portion has an accommodating cavity. The copper busbar assembly includes a first seal and a copper busbar, and the copper busbar is used to connect the high-voltage line, and the first seal is integrally fixed on the outer peripheral surface of the copper busbar. The low-voltage connection assembly is installed in the accommodating cavity. Among them, the terminal block body is formed by injection molding by placing the copper busbar assembly and the low-voltage connection assembly in a mold. The first mounting portion, the first seal and the copper busbar are integrally connected by an injection molding process. The second mounting portion is integrally connected to the low-voltage connection assembly by an injection molding process. A threaded member is provided on the copper busbar, and the motor is connected to the terminal block by means of the threaded member, and the inverter is connected to the terminal block by means of the threaded member.

[0026] In one embodiment, the terminal block further comprises a second sealing member, the outer periphery of the first support is provided with at least one first groove, and the second sealing member is mounted in cooperation with the first support by means of the first groove; and / or

[0027] The terminal block further comprises a third sealing member, the outer periphery of the first mounting portion is provided with at least one second groove, and the third sealing member is mounted in cooperation with the first mounting portion by means of the second groove; and / or

[0028] The wiring seat also includes a fourth sealing member. The outer periphery of the second mounting portion is provided with at least one third groove. The fourth sealing member is mounted in cooperation with the second mounting portion by means of the third groove.

[0029] In the above-mentioned terminal block, preparation method, and electric drive system, an injection mold suitable for the shape and function of the terminal block body is designed. The mold can accommodate the insertion of the copper busbar assembly and the low-voltage connection assembly. The copper busbar assembly and the low-voltage connection assembly are placed in the predetermined position of the mold. The copper busbar is usually used as the conductive part, and the low-voltage connection assembly is used for electrical connection. The plastic raw material is heated to a molten state and injected into the mold. The plastic cools and solidifies in the mold to form the terminal block body. The plastic will surround the copper busbar and the low-voltage connector in the mold, fixing them in the main body to form the terminal block. After the injection molding is completed, the terminal block is removed from the mold and inspected.

[0030] Since the first sealing member is integrally fixed on the copper busbar, during the injection molding process in which the plastic raw material is heated to a molten state and then injected into the mold, the first sealing member will fit tightly with the injection-molded terminal block body, further improving the sealing performance of the entire terminal block. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of a wiring socket in some embodiments of the present application.

[0032] Figure 2 for Figure 1 Schematic diagram of the exploded view of the terminal block in.

[0033] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the copper busbar assembly.

[0034] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the low-voltage connection component.

[0035] Figure 5 for Figure 1 Schematic cross-section of the central terminal block.

[0036] Figure 6 A flow chart of the wiring socket manufacturing method provided in this application.

[0037] The reference numerals in the specific implementation manner are as follows:

[0038] Terminal block 100, terminal block body 1, first mounting portion 11, sub-mounting portion 111, second mounting portion 12, first support 13, first threaded hole W1, accommodating cavity A, glue hole K, copper busbar assembly 2, first sealing member 21, copper busbar 22, contact portion 221, threaded member L, low-voltage connection assembly 3, pin 31, insert 32, mounting hole Z, balancing hole H, reinforcement member 4, second support 41, second threaded hole W2, magnetic ring 5, second sealing member 6, third sealing member 7, fourth sealing member 8, first groove C1, second groove C2, third groove C3;

[0039] The first direction F1, the second direction F2, and the third direction F3. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is the orientation or position relationship based on the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0046] Due to people's need for transportation, cars have been widely integrated into people's daily lives and appeared in the public eye. Terminal blocks in modern cars are more than simple connectors. They are an important part of ensuring the normal operation and efficient maintenance of the electric drive system, which directly affects the performance, safety and reliability of the car.

[0047] At present, the structure of the terminal block is complex, the installation structure is diverse, and the terminal block parts have no sealing ability or poor sealing performance, which cannot ensure the reliable operation of the electric drive system.

[0048] Based on this, in order to improve the sealing performance of the terminal block and thereby enable the electric drive system to operate reliably, the embodiment of the present application provides a terminal block and a manufacturing method thereof, and an electric drive system.

[0049] Reference Figure 1 , Figure 1 A schematic diagram of a wiring socket in some embodiments of the present application is shown. The wiring socket 100 includes a wiring socket body 1, a copper busbar assembly 2, and a low-voltage connection assembly 3. The wiring socket body 1 is configured as a plastic material. The plastic material has low cost, high insulation performance and certain lightness. The "wiring socket body 1" refers to an electrical wiring element used to fix and connect high-voltage and low-voltage components.

[0050] Continue reading Figure 1 , and refer to Figure 2 , Figure 2 for Figure 1 Schematic diagram of the exploded view of the terminal block in.

[0051] The copper busbar assembly 2 includes a first sealing member 21 and a copper busbar 22 for connecting a high voltage line, and the first sealing member 21 is integrally fixed to the outer peripheral surface of the copper busbar 22 .

[0052] The "copper busbar 22" refers to a columnar component made of copper material. In the terminal block 100, the copper busbar 22 is used to provide a stable electrical connection point. "Integrated" means that multiple components or functions are integrated into a whole. Here, it means that the first sealing member 21 and the copper busbar 22 are integrated into a copper busbar assembly 2 as a whole.

[0053] The terminal block body 1 has a first mounting portion 11 and a second mounting portion 12 having an accommodating cavity A. The copper busbar assembly 2 is mounted in the first mounting portion 11, and the low-voltage connection assembly 3 is mounted in the accommodating cavity A of the second mounting portion 12. The "low-voltage connection assembly 3" refers to a component used in an electrical system to handle a connection point with a lower voltage.

[0054] The terminal block body 1 is formed by injection molding in a mold with the help of the copper busbar assembly 2 and the low-voltage connection assembly 3. The first mounting portion 11, the first sealing member 21 and the copper busbar 22 are integrally connected by injection molding, and the second mounting portion 12 and the low-voltage connection assembly 3 are integrally connected by injection molding.

[0055] Design an injection mold suitable for the shape and function of the terminal block body 1. The mold can accommodate the insertion of the copper busbar assembly 2 and the low-voltage connection assembly 3. Place the copper busbar assembly 2 and the low-voltage connection assembly 3 in the predetermined position of the mold, the copper busbar 22 usually serves as the conductive part, and the low-voltage connection assembly 3 is used for electrical connection. Heat the plastic raw material to a molten state and inject it into the mold. The plastic cools and solidifies in the mold to form the terminal block body 1. The plastic will surround the copper busbar 22 and the low-voltage connector in the mold, fixing them in the body to form the terminal block 100. After the injection molding is completed, remove the terminal block 100 from the mold and inspect it.

[0056] Since the first seal 21 is integrally fixed on the copper bus 22 , during the injection molding process of heating the plastic raw material to a molten state and then injecting it into the mold, the first seal 21 will fit tightly with the injection-molded terminal block body 1 , further improving the sealing performance of the overall terminal block 100 .

[0057] In some embodiments of the present application, see Figure 1 and Figure 2, the terminal block 100 body includes a first support 13. The first mounting portion 11 includes a plurality of sub-mounting portions 111 all arranged on the first support 13, all sub-mounting portions 111 are arranged in sequence in the first direction F1, and the sub-mounting portions 111 extend out of the first support 13 in the second direction F2, and all sub-mounting portions 111 are fixedly connected to the copper bus 22. The first direction F1 and the second direction F2 are perpendicular to each other. In the figure, three copper busbars 22 are provided, and three corresponding sub-mounting portions 111 are also provided. One copper busbar 22 is used to connect the power line, and the other copper busbar 22 is connected to the load line so that the current can flow smoothly to the device. The third copper busbar 22 is usually used for grounding or neutral line to make the electrical connection safer and more stable. The number of sub-mounting portions 111 is not limited to this, and four, five, etc. can also be provided, all within the scope of protection of this application.

[0058] In some embodiments of the present application, see Figure 1 and Figure 2 A plurality of glue holes K are provided on the first support 13 corresponding to all the sub-mounting parts 111 and extending through the third direction F3. The glue holes K are arranged one by one corresponding to the sub-mounting parts 111. The glue holes K are filled with glue to fix the copper busbar 22 and the first mounting part 11. The first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

[0059] In this way, the glue hole K passes through the first support 13 and the sub-mounting portion 111. When the copper bar 22 is fixedly connected to the first mounting portion 11, glue is injected into the glue hole K, so that the copper bar 22, the sub-mounting portion 111 and the first support 13 are tightly fitted together, and the sealing medium inside the motor or inverter can be prevented from leaking along the copper bar surface path. The first direction F1, the second direction F2 and the third direction F3 are arranged to be perpendicular to each other, which is more convenient for operators to perform processing and production.

[0060] In some embodiments of the present application, see Figure 3 , Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the copper busbar assembly in FIG. The first mounting portion 11 and the second mounting portion 12 are spaced apart in the first direction F1, and the second mounting portion 12 extends in the second direction F2. With such a design, since a screw member L needs to be provided on the copper busbar 22 for fixing and connecting cables or other components, in order to facilitate the connection of the screw member L with other components, the first mounting portion 11 for installing the copper busbar 22 is spaced apart from the second mounting portion 12 in the first direction F1, and the second mounting portion 12 and the first mounting portion 11 are both extended in the second direction F2, and the first direction F1 is perpendicular to the second direction F2.

[0061] In some embodiments of the present application, see Figure 2, a plurality of first threaded holes W1 are provided on the first support 13. The terminal block 100 needs to be installed at a specified position, so a plurality of first threaded holes W1 need to be provided on the first support 13. The terminal block 100 also includes a reinforcement member 4, which is arranged around the first threaded hole W1. The first support 13 is made of plastic, so the strength of the threaded hole provided on the first support 13 is not high. The reinforcement member 4 is arranged around the first threaded hole W1 to protect the first threaded hole W1, thereby improving the strength of the first threaded hole W1.

[0062] In some embodiments of the present application, see Figure 2 The terminal block 100 further includes a second support 41 abutting against a side surface of the first support 13, and a plurality of second threaded holes W2 are provided on the second support 41 corresponding to the first threaded holes W1, and the reinforcing member 4 includes the second threaded holes W2. In such a design, by providing the second support 41, the material of the second support 41 can be configured as a rigid material or other material with high strength and hardness, and a plurality of second threaded holes W2 are provided on the second support 41 corresponding to the plurality of first threaded holes W1, and the first threaded holes W1 and the second threaded holes W2 are arranged one by one. In this way, the strength of the first threaded hole W1 is enhanced, and the risk of the first threaded hole W1 being damaged during use is reduced.

[0063] In some other embodiments, a plurality of reinforcing ribs may be arranged around the first threaded hole W1 , and the reinforcing member 4 includes a plurality of reinforcing ribs, which may also enhance the strength of the first threaded hole W1 .

[0064] In some embodiments of the present application, see Figure 2 , and refer to Figure 3 , Figure 3 Shows Figure 1 Schematic diagram of the three-dimensional structure of the copper busbar assembly.

[0065] The copper busbar 22 has a contact portion 221 , which is arranged corresponding to the first sealing member 21 ; and / or, the terminal block 100 further includes a magnetic ring 5 , which is sleeved on the outer periphery of the copper busbar 22 .

[0066] A contact portion 221 is provided on the copper bar 22 corresponding to the first sealing member 21, so that the vulcanized sealing ring and the copper bar are well bonded. The contact portion 221 can be a pattern to increase the contact area between the copper bar 22 and the first sealing member 21. The shape of the pattern is not limited.

[0067] The terminal block 100 further includes a magnetic ring 5, which is sleeved on the outer periphery of the copper busbar 22. Such a design reduces the shaft current on the copper busbar, improves the efficiency of the electric drive system, and reduces the interference of high voltage on low voltage signals.

[0068] In some embodiments of the present application, continue to refer to Figure 2 , and combined with reference Figure 4 , Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the low-voltage connection component.

[0069] The low-voltage connection component 3 includes a pin 31 and an insert 32. The pin 31 is fixedly connected to the second mounting portion 12. The insert 32 is provided with a plurality of mounting holes Z, and the insert 32 and the pin 31 are fixedly connected by means of the mounting holes Z. "Pin 31" refers to a metal needle-shaped component for achieving electrical connection, which is installed in the terminal block 100 and is used to contact the inserted wire or connector to guide the current or signal. Since the low-voltage connection component 3 has a high dimensional accuracy, it needs to be processed into an insert 32 separately before the overall injection molding to improve the stability and performance of the low-voltage connection component 3.

[0070] In some embodiments of the present application, please continue to refer to Figure 4 A plurality of balancing holes H are provided on the insert 32 to balance the thickness and weight of the entire insert 32. The size and shape of the balancing holes H are not limited herein.

[0071] Based on the same invention concept, please refer to Figure 6 , Figure 6 A flow chart of the wiring socket manufacturing method provided in the present application is shown.

[0072] The present application provides a method for manufacturing a terminal block, which is used to manufacture the above-mentioned terminal block. The manufacturing method comprises the following steps:

[0073] Step S110, integrally installing the first sealing member on the copper busbar to form a copper busbar assembly;

[0074] Step S120, placing the copper busbar assembly and the low-voltage connection assembly in an injection mold, and filling the injection mold with injection plastic, so that the first mounting portion and the first sealing member are integrally connected to the copper busbar, and the second mounting portion is integrally connected to the low-voltage connection assembly to form a terminal block.

[0075] In step S110, in combination with reference Figure 1 and Figure 2 The "copper busbar 22" refers to a columnar component made of copper material. In the terminal block 100, the copper busbar 22 is used to provide a stable electrical connection point. "Integrated" means that multiple components or functions are integrated into a whole. Here, it means that the first sealing member 21 and the copper busbar 22 are integrated into a copper busbar assembly 2 as a whole.

[0076] In step S120, an injection mold suitable for the shape and function of the terminal block body 1 is designed. The mold can accommodate the insertion of the copper busbar assembly 2 and the low-voltage connection assembly 3. The copper busbar assembly 2 and the low-voltage connection assembly 3 are placed in the predetermined position of the mold, the copper busbar 22 is usually used as the conductive part, and the low-voltage connection assembly 3 is used for electrical connection. The plastic raw material is heated to a molten state and injected into the mold. The plastic cools and solidifies in the mold to form the terminal block body 1. The plastic will surround the copper busbar 22 and the low-voltage connector in the mold, fixing them in the body to form the terminal block 100. After the injection molding is completed, the terminal block 100 is taken out of the mold and inspected.

[0077] Since the first seal 21 is integrally fixed on the copper bus 22 , during the injection molding process of heating the plastic raw material to a molten state and then injecting it into the mold, the first seal 21 will fit tightly with the injection-molded terminal block body 1 , further improving the sealing performance of the overall terminal block 100 .

[0078] In some embodiments of the present application, see Figure 1 and Figure 2 The integrated process includes a vulcanization process.

[0079] Among them, "vulcanization process" refers to the process of chemically reacting sulfur elements with other materials at high temperature, and its main purpose is to improve the durability, elasticity and strength of the material through the cross-linking effect of sulfur. Here, the first seal 21 is cured on the copper bus 22 through the vulcanization process, and during the injection molding process of heating the plastic raw material to a molten state and injecting it into the mold, the first seal 21 will fit tightly with the injection-molded terminal block body 1, further improving the sealing performance of the overall terminal block 100.

[0080] In some embodiments of the present application, continue to refer to 1 and Figure 2 The first mounting portion 11 includes a plurality of sub-mounting portions 111 all arranged on the first support 13. The first support 13 is provided with a plurality of glue holes K penetrating along the third direction corresponding to all the sub-mounting portions 111. The glue holes K are arranged one by one corresponding to the sub-mounting portions 111. The glue holes K are filled with glue. The low-voltage connection component 3 includes a pin 31 and an insert 32 connected to each other. The copper busbar component 2 and the low-voltage connection component 3 are placed in an injection mold, and the injection mold is filled with injection plastic so that the first mounting portion 11 and the first sealing member 21 are injection molded as a whole with the copper busbar 22, and the second mounting portion 12 is injection molded as a whole with the low-voltage connection component 3 to form a terminal block 100. Step S120 includes:

[0081] Step S130, pouring glue into the glue hole K to bond the copper busbar 22 and the first mounting portion 11;

[0082] Step S140 , pouring glue into the accommodating cavity A to bond the pin 31 , the insert 32 and the second mounting portion 12 .

[0083] In step S130, the reference Figure 5 , Figure 5 for Figure 1 Glue is placed in the glue hole K, so that the copper bar 22 in the terminal post is closely connected with the first mounting portion 11, further improving the overall sealing performance of the terminal block 100.

[0084] In step S140 , glue is placed in the accommodating cavity A, so that the pin 31 , the insert 32 and the second mounting portion 12 are tightly connected, and the overall sealing performance of the wiring seat 100 is further improved.

[0085] Based on the same invention concept, you can continue to refer to Figure 1 , Figure 2 and Figure 3 The present application provides an electric drive system, including the above-mentioned terminal block 100, a motor and an inverter. A screw L is provided on the copper bus 22, and the motor is connected to the terminal block 100 by means of the screw L, and the inverter is connected to the terminal block 100 by means of the screw L.

[0086] A screw member L is provided on the copper bar 22, and the screw member L can be used to connect the copper bar 22 to the motor, or to connect the copper bar 22 to the inverter. The copper bar 22 is firmly combined with the cable or electrical connection point of the motor through the screw member L. This connection method enables the current to be reliably transmitted to the motor, optimizing the performance and stability of the motor. The copper bar 22 is connected to the inverter through the screw member L. This connection method enables the current to be effectively transmitted from the inverter to the load, enhancing the overall efficiency of the electrical system.

[0087] In some embodiments of the present application, reference may be made to Figure 1 , Figure 2 and Figure 5 The terminal block 100 further includes a second seal 6, the outer periphery of the first support 13 is provided with at least one first groove C1, and the second seal 6 is installed in cooperation with the first support 13 by means of the first groove C1; and / or, the terminal block 100 further includes a third seal 7, the outer periphery of the first mounting portion 11 is provided with at least one second groove C2, and the third seal 7 is installed in cooperation with the first mounting portion 11 by means of the second groove C2; ​​and / or, the terminal block 100 further includes a fourth seal 8, the outer periphery of the second mounting portion 12 is provided with at least one third groove C3, and the fourth seal 8 is installed in cooperation with the second mounting portion 12 by means of the third groove C3.

[0088] With such a design, the motor and the inverter are both provided with grooves matching the second seal 6, the third seal 7 and the fourth seal 8 on the terminal block 100, thereby improving the sealing performance between the terminal block 100 and the motor and the inverter.

[0089] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A terminal block, characterized in that: Produced by a mold, the terminal block includes: The wiring seat body is configured with a plastic material, the wiring seat body has a first mounting portion and a second mounting portion, and the second mounting portion has a receiving cavity; A copper busbar assembly, comprising a first sealing member and a copper busbar, wherein the copper busbar is used to connect a high voltage line, and the first sealing member is integrally fixed to an outer peripheral surface of the copper busbar; and A low-pressure connection assembly is installed in the accommodating cavity; Wherein, the terminal block body is formed by injection molding by placing the copper busbar assembly and the low-voltage connection assembly in the mold; The first mounting portion, the first sealing member and the copper busbar are integrally connected through an injection molding process; the second mounting portion and the low-pressure connecting assembly are integrally connected through an injection molding process.

2. The terminal block according to claim 1, characterized in that: The terminal block body includes a first support; the first mounting portion includes a plurality of sub-mounting portions all arranged on the first support, all the sub-mounting portions are arranged in sequence in the first direction, and all the sub-mounting portions extend out of the first support in the second direction, and all the sub-mounting portions are fixedly connected to the copper busbar; The first direction and the second direction are perpendicular to each other.

3. The terminal block according to claim 2, characterized in that: A plurality of glue holes penetrating along the third direction are provided on the first support corresponding to all the sub-mounting parts, the glue holes are arranged one by one corresponding to the sub-mounting parts, and the glue holes are filled with glue to fix the copper busbar and the first mounting part; The first direction, the second direction and the third direction are perpendicular to each other.

4. The terminal block according to claim 2, characterized in that: The first mounting portion and the second mounting portion are spaced apart in the first direction, and the second mounting portion is extended in the second direction.

5. The terminal block according to claim 2, characterized in that: The first support is provided with a plurality of first threaded holes; The wiring seat also includes a reinforcement member, and the reinforcement member is arranged around the first threaded hole.

6. The terminal block according to claim 5, characterized in that: The terminal block also includes a second support abutting against a side surface of the first support; a plurality of second threaded holes are opened on the second support corresponding to all the first threaded holes, the first threaded holes and the second threaded holes are arranged in a one-to-one correspondence, and the reinforcement includes a second threaded hole.

7. The terminal block according to any one of claims 1 to 6, characterized in that: The copper busbar has a contact portion, and the contact portion is arranged corresponding to the first sealing member; and / or The wiring seat also includes a magnetic ring, which is sleeved on the outer circumference of the copper busbar.

8. The terminal block according to any one of claims 1 to 6, characterized in that: The low-voltage connection assembly comprises: A pin, fixedly connected to the second mounting portion; The insert is provided with a plurality of mounting holes, and the insert and the plug pin are fixedly connected by means of the mounting holes.

9. The terminal block according to claim 8, characterized in that: The insert is provided with a plurality of balancing holes.

10. A method for manufacturing a wiring socket, characterized in that: Used to manufacture the terminal block according to any one of claims 1 to 9; the manufacturing method comprises: Integrating the first sealing member onto the copper busbar to form the copper busbar assembly; The copper busbar assembly and the low-voltage connection assembly are placed in an injection mold, and the injection mold is filled with injection plastic so that the first mounting portion and the first sealing member are integrally connected to the copper busbar, and the second mounting portion is integrally connected to the low-voltage connection assembly to form the terminal block.

11. The method for preparing a terminal block according to claim 10, characterized in that: The integrated process includes a vulcanization process.

12. The method for preparing a terminal block according to claim 11, characterized in that: The first mounting portion includes a plurality of sub-mounting portions all arranged on the first support, the first support is provided with a plurality of glue holes penetrating along a third direction corresponding to all the sub-mounting portions, the glue holes are arranged one by one corresponding to the sub-mounting portions, the glue holes are filled with glue, and the low-voltage connection assembly includes a pin and an insert connected to each other; The copper busbar assembly and the low-voltage connection assembly are placed in an injection mold, and the injection mold is filled with injection plastic, so that the first mounting portion and the first sealing member are injection-molded as one with the copper busbar, and the second mounting portion is injection-molded as one with the low-voltage connection assembly to form the wiring seat, and then the following steps are included: Pour glue into the glue placement hole to bond the copper busbar and the first mounting portion; Glue is poured into the accommodating cavity to bond the pin, the insert and the second mounting portion.

13. An electric drive system, characterized in that: It comprises a terminal block, a motor and an inverter as described in any one of claims 1 to 9; a threaded piece is provided on the copper busbar, the motor is connected to the terminal block by means of the threaded piece, and the inverter is connected to the terminal block by means of the threaded piece.

14. The electric drive system according to claim 13, characterized in that: The terminal block further comprises a second sealing member, the outer periphery of the first support is provided with at least one first groove, and the second sealing member is installed in cooperation with the first support by means of the first groove; and / or The terminal block further comprises a third sealing member, the outer periphery of the first mounting portion is provided with at least one second groove, and the third sealing member is mounted in cooperation with the first mounting portion by means of the second groove; and / or The wiring seat further includes a fourth sealing member. The outer periphery of the second mounting portion is provided with at least one third groove. The fourth sealing member is mounted in cooperation with the second mounting portion by means of the third groove.

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