A full-cast copper busbar connector pouring device

Abstract

The application provides a full-casting copper busbar connector pouring device, and relates to the field of copper busbar pouring. The full-casting copper busbar connector pouring device comprises two groups of busbars and busbar contact surfaces, further comprises two groups of inner mold assemblies, the two groups of inner mold assemblies are buckled between the two groups of busbars and wrapped outside the busbar contact surfaces, the two groups of inner mold assemblies that are pressed tightly and folded can keep the folded inner mold assemblies and the end portions of the two groups of busbars to form a closed space. The full-casting copper busbar connector pouring device, the inner mold assembly does not need to cooperate with the size of the busbar shell, only needs to be able to be inserted into the busbar contact surface, so when pouring glue at the construction site, the pouring glue not only seals the busbar contact surface, but also adheres to the end surface of the busbar, forming a sealed connection area, so there is no need for strict cooperation, and the practicality is stronger, and the pouring glue can be realized at the construction site.

Description

Technical Field

[0001] This invention relates to the field of copper busbar casting, specifically to a casting device for a fully cast copper busbar connector. Background Technology

[0002] Fully cast busbars use cast insulating material to pour copper busbars into the housing. After the insulating material cures, the copper busbars are fixed inside the housing. Busbars are prone to expansion and deformation during operation; therefore, a certain distance is reserved between adjacent busbars during connection, and then connectors are used to connect them. Currently, the connection between two adjacent busbars also typically uses a fully cast method. An aluminum plate casting mold is used, connected to the busbar, and insulating material is poured into it to solidify the connector to the busbar. Busbar joint casting usually uses epoxy resin or polyurethane and other polymer insulating materials to seal the connection points of the busbars (especially high-voltage, high-current busbars), forming an integrated, fully insulated joint.

[0003] The advantages of using cast-in-place busbar connections include: absolute insulation and sealing, elimination of corona discharge, mechanical protection and reinforcement, and moisture and water resistance.

[0004] However, the same drawbacks are also quite obvious. If factory prefabrication is used, suitable molds can be selected during casting, resulting in higher connection specifications without issues such as burrs and air bubbles. However, many busbars only require casting and sealing after on-site connection, making it difficult to use large or complex prefabricated molds for on-site casting. Usually, only simple on-site assembly molds can be used. Simple molds often have problems with insufficient sealing and low positioning accuracy, which can easily lead to defects such as insulation leakage, air bubbles or shrinkage cavities inside the connector, and loose bonding between the copper busbar and the insulation material during casting, affecting the insulation performance and mechanical strength of the connector. In addition, controlling the proportioning, mixing, casting speed, and curing conditions of the casting material during on-site casting is more difficult, which will further affect the molding quality and reliability of the connector. Therefore, designing a casting device for fully cast copper busbar connectors that can adapt to on-site operation and effectively guarantee casting quality has become the key to solving the existing technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a casting device for fully cast copper busbar connectors, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a casting device for a fully cast copper busbar connector, comprising two sets of busbars and busbar contact surfaces, and two sets of inner mold assemblies. The two sets of inner mold assemblies are fastened between the two sets of busbars and wrapped around the busbar contact surfaces. The two sets of inner mold assemblies, pressed tightly together by the two sets of busbars, can maintain a closed space between the closed inner mold assemblies and the ends of the two sets of busbars. It also includes two sets of outer mold assemblies, which are closed outside the two sets of busbars, and the closed outer mold assemblies apply pressure to the two sets of inner mold assemblies. Furthermore, it includes an outer sealing assembly for sealing the outer mold assemblies, and a glue pumping and air pumping assembly for providing negative pressure to the inner mold assemblies for glue delivery. After glue filling, the assembly is used to heat the inner mold assemblies, shortening the curing time.

[0007] Preferably, the inner mold assembly includes a half mold A, the top of the half mold A is provided with matrix-distributed micro air holes, the front of the half mold A is provided with a contact surface connection operation hole, and the two ends of the upper and lower sides of the half mold A are fixedly installed with initial positioning limiting plates. When the two ends of the half mold A are in contact with the ends of the two sets of busbars, the initial positioning limiting plates can contact the two sets of busbars and keep them fixed between the two sets of busbars.

[0008] A glue delivery pipe is fixedly installed at the bottom of the half mold A. The glue delivery pipe is connected to a glue pump and air pump assembly for injecting glue into the half mold A.

[0009] Preferably, the initial positioning limiting plate includes an L-shaped plate and an elastic pressure plate. One end of the L-shaped plate is fixed to the half mold A, and the elastic pressure plate is fixed on the side of the L-shaped plate facing the half mold A. The end of the L-shaped plate away from the half mold A extends to the outside of the busbar shell, and the elastic pressure plate contacts the busbar shell.

[0010] Preferably, the outer mold assembly includes a half mold B, and two sets of symmetrically distributed springs A are fixedly installed on the side of the half mold B facing the half mold A. When the half mold B approaches the half mold A, the springs A squeeze the half mold A. An elastic sealing member is also fixedly installed on the side of the half mold B facing the half mold A, which is used to seal the contact surface connection operation hole when squeezing the half mold A.

[0011] The glue delivery tube is elastically bent and passes through half mold B;

[0012] Hot air circulation pipes are installed on the upper end of half mold B of one of the outer mold components and the lower end of half mold B of the other outer mold component. The hot air circulation pipes are connected to the glue pumping and air pumping components to circulate heat between the two half molds B to achieve heat exchange in half mold A. A negative pressure pipe is installed on one side of half mold B of one of the outer mold components. The negative pressure pipe is connected to the glue pumping and air pumping components to extract gas between the two half molds B.

[0013] Preferably, the elastic sealing member includes a spring B and a stepped sealing plate. One end of the spring B is fixedly connected to the half mold B, and the other end of the spring B is fixedly connected to the stepped sealing plate. When the half mold B approaches the half mold A, the spring B presses the stepped sealing plate into the contact surface connecting to the operating hole.

[0014] Preferably, the external sealing assembly includes a soft rubber ring that mates with half mold B. When half mold B is installed on the two sets of busbars, it can compress the soft rubber ring to achieve a seal between half mold B and the busbar housing, as well as a seal between the two sets of half molds B.

[0015] Preferably, the external sealing assembly further includes a U-shaped clamp, and a short cylinder is fixedly installed at the end of any one of the U-shaped clamps. The U-shaped clamp can be locked outside the two closed half molds B. The short cylinder is connected to the glue pumping and air pumping assembly to squeeze the half mold B and achieve close contact between the half mold B and the soft rubber ring.

[0016] Preferably, the two half-molds A have interlocking concave and convex keys on the contact side to enhance sealing.

[0017] Preferably, the glue pump assembly includes an AB glue mixer, an air pump, a negative pressure air pump, and a PTC hot air system.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This fully cast copper busbar connector casting device, by setting an inner mold assembly, does not need to match the size of the busbar shell. It only needs to be able to fit into the contact surface of the busbar. Therefore, when injecting glue on the construction site, it is only necessary to wrap the contact surface of the busbar, tighten the two busbars with the inner mold assembly, and then tighten the contact surface of the busbar with bolts. At this time, the glue will not only seal the contact surface of the busbar, but the glue will also adhere to the end face of the busbar to form a sealed connection area. Therefore, no tight fit is required, which is more practical and can realize on-site installation and glue injection.

[0020] 2. This fully cast copper busbar connector casting device, by setting an outer mold assembly, can be used to press the inner mold assembly to form a two-layer mold. Applying negative pressure to the outside makes it easier for air bubbles to escape when the inner mold assembly is filled with glue. Even if glue overflows, it will not drip onto the construction site. The glue overflow in the outer mold can be completely cleaned before solidification. Moreover, the outer mold assembly can form a heat insulation layer after circulating hot air, which can accelerate the solidification rate of the glue in winter outdoors.

[0021] 3. The casting device for the fully cast copper busbar connector is equipped with a glue pump and air pump assembly. The glue pouring equipment is separated from the mold. After mixing the glue, it is injected into the mold by pumping. Compared with the glue pouring method, the glue pouring speed is faster, the glue volume data is more accurate, and the probability of voids and air cavities is lower when the bottom injection method is used. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a top view of the structure of the present invention;

[0024] Figure 3 This is an exploded view of the structure of the outer mold assembly of the present invention;

[0025] Figure 4 This is an exploded view of the external sealing assembly of the present invention;

[0026] Figure 5 This is an exploded view of the internal mold assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal mold assembly of the present invention;

[0028] Figure 7 This is a top view of part of the structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 Sectional view along line A;

[0030] Figure 9 For the present invention Figure 7 Sectional view along line B;

[0031] Figure 10 This is a connection diagram of the internal mold assembly and the busbar of the present invention.

[0032] In the diagram: 1. Busbar; 2. Busbar contact surface; 3. Inner mold assembly; 301. Half mold A; 302. Micro air hole; 303. Contact surface connection operation hole; 304. Initial positioning limiting plate; 3041. L-shaped plate; 3042. Elastic pressure plate; 305. Glue delivery pipe; 306. Concave and convex keys; 4. Outer mold assembly; 401. Half mold B; 402. Spring A; 403. Elastic sealing component; 4031. Spring B; 4032. Stepped sealing plate; 404. Hot air circulation pipeline; 405. Negative pressure pipe; 5. Outer sealing assembly; 501. Soft rubber ring; 502. U-shaped clamp; 503. Short cylinder; 6. Glue pumping and air pumping assembly. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0037] like Figure 1-10 As shown, a casting device for a fully cast copper busbar connector includes two sets of busbars 1 and busbar contact surfaces 2, as well as two sets of inner mold assemblies 3. The two sets of inner mold assemblies 3 are fastened between the two sets of busbars 1 and wrapped around the busbar contact surfaces 2. The two sets of busbars 1 press the two sets of inner mold assemblies 3 together, which can maintain a closed space between the closed inner mold assemblies 3 and the ends of the two sets of busbars 1. It also includes two sets of outer mold assemblies 4, which are closed outside the two sets of busbars 1. The closed outer mold assemblies 4 apply pressure to the two sets of inner mold assemblies 3. It also includes an outer sealing assembly 5 for sealing the outer mold assemblies 4, and a glue pumping and air pumping assembly 6 for providing negative pressure to the inner mold assemblies 3 for glue delivery. After glue filling, it is used to heat the outer mold assemblies 4 to shorten the curing time.

[0038] Busbar 1 itself is a glue-filled busbar with multiple conductive connection surfaces at its ends. During actual installation, the busbar contact surfaces 2 of the two sets of busbar 1 need to be overlapped, and the busbar contact surfaces 2 need to be ground to increase conductivity. In practice, when connecting the two sets of busbar contact surfaces 2, it is not necessary to use the original connection holes for mounting bolts. Holes can be drilled on the busbar contact surfaces 2 according to actual needs. After drilling, bolts are installed, and the mechanical connection achieved still meets the electrical connection requirements.

[0039] In an optional embodiment, the inner mold assembly 3 includes a half mold A301. The top of the half mold A301 has a matrix of distributed micro-vents 302, and the front of the half mold A301 has contact surface connection operation holes 303. Initial positioning limiting plates 304 are fixedly installed at both ends of the upper and lower surfaces of the half mold A301. When the two ends of the half mold A301 contact the ends of the two sets of busbars 1, the initial positioning limiting plates 304 can contact the two sets of busbars, keeping them fixed between the two sets of busbars 1. A glue delivery pipe 305 is fixedly installed at the bottom of the half mold A301. The glue delivery pipe 305 is connected to a glue pumping and air pumping assembly 6 for injecting glue into the half mold A301.

[0040] In this embodiment, the micropores 302 are densely distributed and numerous, but their diameter is small. When the glue overflows from the micropores 302, a large pressure is required. A pressure sensor can be used to control the glue pumping process to prevent the glue from overflowing from the micropores 302.

[0041] In an optional embodiment, the initial positioning limiting plate 304 includes an L-shaped plate 3041 and an elastic pressure plate 3042. One end of the L-shaped plate 3041 is fixed to the half mold A301, and the elastic pressure plate 3042 is fixed on the side of the L-shaped plate 3041 facing the half mold A301. The end of the L-shaped plate 3041 away from the half mold A301 extends to the outside of the busbar 1 housing, and the elastic pressure plate 3042 contacts the busbar housing.

[0042] In this embodiment, the elastic pressure plate 3042 is made of copper alloy and has a semi-arc structure. It can deform under pressure and has a rough texture on its surface. The L-shaped plate 3041 has a certain height so that it can be just stuck on the outer shell of the busbar 1. By utilizing the contraction distance of the elastic pressure plate 3042, it can be adapted to various specifications of busbar shells. The L-shaped plate 3041 can also be removed and replaced with workpieces of different heights. It is necessary to ensure that the elastic pressure plate 3042 is pressed and deformed when it comes into contact with the outer shell of the busbar 1 so that friction exists.

[0043] In an optional embodiment, the outer mold assembly 4 includes a half mold B401. Two sets of symmetrically distributed springs A402 are fixedly mounted on the side of half mold B401 facing half mold A301. When half mold B401 approaches half mold A301, the springs A402 compress half mold A301. An elastic closure 403 is also fixedly mounted on the side of half mold B401 facing half mold A301 to close the contact surface connection operation hole 303 when half mold A301 is compressed. The glue delivery tube 305 is elastically bent and passes through half mold B401. A hot air circulation pipe 404 is installed on the upper end of half mold B401 of one of the outer mold components 4 and the lower end of half mold B401 of the other outer mold component 4. The hot air circulation pipe 404 is connected to the glue pumping and air pumping assembly 6, which is used to circulate heat between the two half molds B401 to achieve heat exchange in half mold A301. A negative pressure pipe 405 is installed on one side of half mold B401 of one of the outer mold components 4. The negative pressure pipe 405 is connected to the glue pumping and air pumping assembly 6, which is used to extract gas between the two half molds B401.

[0044] In this embodiment, after the half-mold B401 is closed, it completely encloses the half-mold A301. Therefore, even if there is a problem of glue overflow in the half-mold A301, the overflow will still exist in the half-mold B401 and will not contaminate the construction site. Moreover, the overflow in the half-mold B401 has a short pulling distance and is easy to clean. The glue delivery tube 305 adopts a bendable and deformable structure, which can also be separated from the half-mold B401 and reconnected when in use. It can also adopt a bent structure without affecting the installation of the half-mold A301 and the half-mold B401. The hot air circulation pipe 404 and the negative pressure pipe 405 are also bendable pipes, which facilitates the separation of the glue pumping and air pumping assembly 6 from the glue application position.

[0045] In an optional embodiment, the elastic closure 403 includes a spring B4031 and a stepped sealing plate 4032. One end of the spring B4031 is fixedly connected to the half mold B401, and the other end of the spring B4031 is fixedly connected to the stepped sealing plate 4032. When the half mold B401 approaches the half mold A301, the spring B4031 presses the stepped sealing plate 4032 into the contact surface connecting operation hole 303.

[0046] In this embodiment, the shape and size of the stepped sealing plate 4032 are matched with the shape and size of the contact surface connection operation hole 303. The two adopt a clearance fit. However, when the stepped sealing plate 4032 is under pressure and fits the contact surface connection operation hole 303, a certain degree of sealing can be achieved. Although it cannot achieve a completely airtight seal, it overcomes the problem of colloid leakage.

[0047] In an optional embodiment, the outer sealing assembly 5 includes a soft rubber ring 501 that engages with a half mold B401. When the half mold B401 is installed on the two sets of busbars 1, it can compress the soft rubber ring 501 to achieve a seal between the half mold B401 and the outer shell of the busbar 1, as well as a seal between the two sets of half molds B401.

[0048] In this embodiment, the soft rubber ring 501 has a multi-layer structure. It is made of ultra-soft rubber, has strong tensile strength and strong elasticity. Its thickness and width are many times greater than the thickness of the end wall of the half mold B401. When the half mold B401 extrudes the soft rubber ring 501, the multi-layer structure can significantly reduce the probability of air leakage.

[0049] In an optional embodiment, the outer sealing assembly 5 further includes a U-shaped clamp 502, and a short cylinder 503 is fixedly installed at the end of each U-shaped clamp 502. The U-shaped clamp 502 can be locked outside the two closed half molds B401. The short cylinder 503 is connected to the glue pumping and air pumping assembly 6 and is used to squeeze the half molds B401 to achieve close contact between the half molds B401 and the soft rubber ring 501.

[0050] In this embodiment, the U-shaped clamp 502 is a metal clamp with a certain structural strength at its bend to avoid bending and breakage. The short cylinder 503 is a cylinder with a short stroke, with an extension stroke of no more than 100mm. It uses air pressure to generate thrust and is used to quickly clamp the half mold B401.

[0051] In an optional embodiment, the two half-molds A301 have contacting surfaces with mating concave and convex keys 306 to enhance sealing.

[0052] In this embodiment, the concave-convex key 306 between the half molds A301 is used to reduce the gap after assembly, so as to avoid leakage during the pumping of adhesive.

[0053] In an optional embodiment, the glue pumping and air pumping assembly 6 includes an AB glue mixer, an air pump, a negative pressure air pump, and a PTC hot air system.

[0054] In this embodiment, the glue pumping and air pumping assembly 6 integrates the components of the prior art into an integrated device. The device can be moved in a push-pull or transportable manner. The AB glue mixer is an epoxy resin glue mixer. The air pump is a micro air pump that can be used to drive linear components and provide power, or to pump glue liquid with gas. The negative pressure air pump is a micro air pump used to extract gas. A power of less than 2kW is sufficient to meet the usage requirements. The PTC hot air system includes PTC heating ceramics and a micro fan, which is used to blow out heated air to accelerate the solidification of the glue.

[0055] In use, first grind the busbar contact surface 2 to enhance the conductivity of the busbar 1 terminal. Then, first contact the busbar contact surfaces 2 of the two sets of busbars 1, and then clamp the two half molds A301 between the busbar contact surfaces 2 and push the two sets of busbars 1 closer. When the busbars 1 are close, the outer shell end of the busbar 1 contacts the end of the half mold A301. At this time, the L-shaped plate 3041 and the elastic pressure plate 3042 on the half mold A301 will be clamped outside the outer shell of the busbar 1, thereby increasing a certain friction to achieve a preliminary connection. At this time, the friction can hold the two half molds A301 together and combine the ends of the busbar 1 to form a closed space. At this time, because there is no fixing force, there are gaps in the closed space.

[0056] Subsequently, the overlapping busbar contact surfaces 2 are drilled and bolts are installed using the contact surface connection operation hole 303. The two sets of busbars 1 are mechanically connected to the busbar contact surfaces 2 using the bolts. After the bolts are tightened, the two sets of busbars 1 are electrically connected and mechanically fixed.

[0057] Then, put on the soft rubber ring 501, and put both ends of the soft rubber ring 501 on the outer shell of the two busbars 1 respectively. Then, fasten the two sets of half molds B401. When fastening the half molds B401, they need to be aligned with the soft rubber ring 501. Also, align the stepped sealing plate 4032 with the contact surface connecting operation hole 303. When fastening the half molds B401, due to the reaction force of springs A402 and B4031, a U-shaped clamp 502 is needed. The U-shaped clamp 502 is used to clamp the two half molds B401. Using the air pump to inflate the short cylinder... 503 extends and squeezes the half mold B401. As the extrusion pressure increases, the half mold B401 increases the contact force with the soft rubber ring 501 until it has a certain sealing performance. At the same time, the elastic force of the spring B4031 also seals the contact surface connection operation hole 303 of the stepped sealing plate 4032. The elastic force of the spring A402 also fastens the two sets of half molds A301. When the short cylinder 503 gradually applies pressure, the two sets of busbars 1 need to be tightly attached to the half mold A301 to avoid gaps at the ends during later pouring.

[0058] The casting process begins by using a negative pressure air pump to extract air from between the two half-molds B401. The mixed adhesive then enters between the two half-molds A301 through the adhesive delivery pipe 305. Even if half-mold B401 is not completely sealed, there is still a pressure difference between half-molds A301 and B401 sufficient for gas to escape. Air bubbles in the adhesive can escape from the micro-pores 302. When the casting reaches the position of the micro-pores 302, the pumping pressure increases. The pumping of adhesive is stopped according to the pressure change. At this time, it is necessary to pump circulating hot air between half-molds B401. The increased temperature between half-molds B401 and A301 can increase the curing speed of the epoxy resin, thereby accelerating the casting of the connector.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting device for a fully cast copper busbar connector, comprising two sets of busbars (1) and a busbar contact surface (2), characterized in that: It also includes two sets of inner mold assemblies (3), which are fastened between two sets of busbars (1) and wrapped around the contact surface (2) of the busbars. The two sets of busbars (1) press and close the two sets of inner mold assemblies (3) to keep the closed inner mold assemblies (3) and the ends of the two sets of busbars (1) forming a closed space; it also includes two sets of outer mold assemblies (4), which are closed outside the two sets of busbars (1). The closed two sets of outer mold assemblies (4) apply pressure to the two sets of inner mold assemblies (3); it also includes an outer sealing assembly (5) for sealing the outer mold assembly (4); it also includes a glue pumping and air pumping assembly (6) for providing negative pressure to the inner mold assembly (3) for glue delivery. After the glue is poured, it is used to heat up the outer mold assembly (4) to shorten the curing time; The inner mold assembly (3) includes a half mold A (301). The top of the half mold A (301) is provided with a matrix of micro air holes (302). The front of the half mold A (301) is provided with a contact surface connection operation hole (303). The two ends of the upper and lower sides of the half mold A (301) are fixedly installed with initial positioning limiting plates (304). When the two ends of the half mold A (301) are in contact with the ends of the two sets of busbars (1), the initial positioning limiting plates (304) can contact the two sets of busbars, so that the half mold A (301) is fixed between the two sets of busbars (1). A glue delivery tube (305) is fixedly installed at the bottom of the half mold A (301). The glue delivery tube (305) is connected to the glue pump and air pump assembly (6) for injecting glue into the half mold A (301). The outer mold assembly (4) includes a half mold B (401). Two sets of symmetrically distributed springs A (402) are fixedly installed on the side of the half mold B (401) facing the half mold A (301). When the half mold B (401) approaches the half mold A (301), the springs A (402) squeeze the half mold A (301). An elastic sealing member (403) is also fixedly installed on the side of the half mold B (401) facing the half mold A (301) to close the contact surface connection operation hole (303) when squeezing the half mold A (301). The glue delivery tube (305) is elastically bent and passes through the half mold B (401). A hot air circulation pipe (404) is installed on the upper end of half mold B (401) of one of the outer mold components (4) and the lower end of half mold B (401) of the other outer mold component (4). The hot air circulation pipe (404) is connected to the glue pumping and air pumping assembly (6) to circulate heat between the two half molds B (401) to achieve heat exchange in half mold A (301). One of the outer mold components (4) has a negative pressure pipe (405) installed on one side of the half mold B (401). The negative pressure pipe (405) is connected to the pump glue and pump air assembly (6) to extract the gas between the two half molds B (401).

2. The casting device for the fully cast copper busbar connector according to claim 1, characterized in that: The initial positioning limiting plate (304) includes an L-shaped plate (3041) and an elastic pressure plate (3042). One end of the L-shaped plate (3041) is fixed to the half mold A (301), and the elastic pressure plate (3042) is fixed on the side of the L-shaped plate (3041) facing the half mold A (301). The end of the L-shaped plate (3041) away from the half mold A (301) extends to the outside of the busbar (1) shell, and the elastic pressure plate (3042) contacts the busbar shell.

3. The casting device for the fully cast copper busbar connector according to claim 2, characterized in that: The elastic closure (403) includes a spring B (4031) and a stepped sealing plate (4032). One end of the spring B (4031) is fixedly connected to the half mold B (401), and the other end of the spring B (4031) is fixedly connected to the stepped sealing plate (4032). When the half mold B (401) approaches the half mold A (301), the spring B (4031) presses the stepped sealing plate (4032) into the contact surface connecting operation hole (303).

4. The casting device for the fully cast copper busbar connector according to claim 3, characterized in that: The external sealing assembly (5) includes a soft rubber ring (501), which cooperates with the half mold B (401). When the half mold B (401) is installed on the two sets of busbars (1), it can squeeze the soft rubber ring (501) to achieve the seal between the half mold B (401) and the outer shell of the busbar (1) and the seal between the two sets of half molds B (401).

5. The casting device for a fully cast copper busbar connector according to claim 4, characterized in that: The outer sealing assembly (5) also includes a U-shaped clamp (502), and a short cylinder (503) is fixedly installed at the end of any one of the U-shaped clamps (502). The U-shaped clamp (502) can be locked outside the two closed half molds B (401). The short cylinder (503) is connected to the glue pumping assembly (6) and is used to squeeze the half molds B (401) to achieve close contact between the half molds B (401) and the soft rubber ring (501).

6. The casting device for a fully cast copper busbar connector according to claim 5, characterized in that: The two half-molds A (301) have interlocking concave and convex keys (306) on the contact side to enhance sealing.

7. The casting device for a fully cast copper busbar connector according to any one of claims 1-6, characterized in that: The glue pump assembly (6) includes an AB glue mixer, an air pump, a negative pressure air pump, and a PTC hot air system.

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