An injection mold

Abstract

This utility model belongs to the field of injection mold technology and discloses an injection mold, which includes a mold body, a first liquid cooling component, and a second liquid cooling component. The mold body includes a stationary mold and a moving mold. The first liquid cooling component includes a first side tube and a first inner tube, both of which are disposed within the stationary mold. At least two first side tubes are provided, and all first side tubes are spaced apart circumferentially along the stationary mold to form a closed loop. The first inner tube is located inside all the first side tubes. The second liquid cooling component includes a second side tube and a second inner tube. The second side tube is disposed within the moving mold, and the second inner tube is partially disposed within the moving mold. All second side tubes are spaced apart circumferentially along the moving mold to form a closed loop, and the second inner tube is located inside all the second side tubes. The injection mold provided by this utility model further enhances the circulation efficiency of the internal refrigerant and effectively improves the cooling uniformity of the moving and stationary molds.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold. Background Technology

[0002] In existing technologies, the casing of circuit breakers is manufactured using injection molding, which involves the use of injection molds. To prevent excessively high temperatures within the injection mold, cooling pipes are typically installed within both the stationary and moving molds. Cooling media, such as water, circulates through these pipes, absorbing heat from the stationary and moving molds and achieving a cooling function. However, current cooling pipes are mostly located around the periphery of the stationary and moving molds, resulting in poor cooling uniformity in the central area. Furthermore, the long length of individual pipes leads to low coolant circulation efficiency and slow flow, further impacting cooling efficiency and consequently causing long injection molding cycles and low production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an injection mold that further enhances the circulation efficiency of the internal refrigerant, effectively improves the cooling uniformity of the moving and stationary molds, effectively reduces the injection molding cycle, and improves production efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An injection mold, comprising:

[0006] The mold body includes a stationary mold and a moving mold;

[0007] The first liquid cooling assembly includes a first side tube and a first inner tube. Both the first side tube and the first inner tube are disposed inside the stationary mold. There are at least two first side tubes. All the first side tubes are spaced apart along the circumference of the stationary mold and form a closed loop. The first inner tube is located inside all the first side tubes.

[0008] The second liquid cooling assembly includes a second side tube and a second inner tube. The second side tube is disposed inside the moving mold, and the second inner tube is partially disposed inside the moving mold. There are at least two second side tubes. All the second side tubes are spaced apart along the circumference of the moving mold and form a closed loop. The second inner tube is located inside all the second side tubes.

[0009] Preferably, the first liquid cooling assembly further includes a first extension tube disposed within the stationary mold, the first extension tube being connected to the first side tube; the second liquid cooling assembly further includes a second extension tube disposed within the moving mold, the second extension tube being connected to the second side tube.

[0010] Preferably, the first extension tube includes a first tube body and a first partition. The first partition is disposed in the first tube body and separates the internal space of the first tube body to form a first detour flow channel. The refrigerant in the first side tube flows into the first detour flow channel and flows back to the first side tube through the first detour flow channel.

[0011] The second extension pipe includes a second pipe body and a second partition. The second partition is disposed in the second pipe body and separates the internal space of the second pipe body to form a second detour flow channel. The refrigerant in the second side pipe flows into the second detour flow channel and flows back to the second side pipe through the second detour flow channel.

[0012] Preferably, the first pipe body has a first inlet and a first outlet on opposite sides of the first end, the first pipe body is connected to the first side pipe through the first inlet and the first outlet, the first baffle is disposed between the first inlet and the first outlet, and there is a first flow gap between the first baffle and the second end of the first pipe body.

[0013] The second pipe body has a second inlet and a second outlet on opposite sides of the first end. The second pipe body is connected to the second side pipe through the second inlet and the second outlet. The second baffle is disposed between the second inlet and the second outlet. There is a second flow gap between the second baffle and the second end of the second pipe body.

[0014] Preferably, the end of the first tube corresponding to the first flow gap is set as a convex cone shape, and the end of the second tube corresponding to the second flow gap is set as a convex cone shape.

[0015] Preferably, the first inner tube is configured as a shaped tube, and the shape of the shaped tube is configured as C-shaped, S-shaped or O-shaped.

[0016] Preferably, the first liquid cooling assembly further includes a first outer tube and a second outer tube, the first end of the first outer tube is inserted into the static mold and communicates with the end of the first side tube, the first end of the second outer tube is inserted into the static mold and communicates with the end of the first inner tube, and the second ends of the first outer tube and the second outer tube are both connected to a refrigerant circulation container.

[0017] The second liquid cooling assembly further includes a third outer tube and a fourth outer tube. The first end of the third outer tube is inserted into the moving mold and communicates with the end of the second side tube. The first end of the fourth outer tube is located outside the moving mold and communicates with the end of the second inner tube that extends outside the moving mold. The second ends of the third outer tube and the fourth outer tube are both connected to a refrigerant circulation container.

[0018] Preferably, the second inner tube is provided in multiple groups, each group of the second inner tube is provided with multiple second inner tubes, each group of the second inner tubes corresponds to one of the fourth outer tubes, and the end of the second inner tube of each group that extends out of the moving mold is connected to the corresponding fourth outer tube.

[0019] Preferably, the static mold has a first hole and a second hole, the first hole is corresponding to the first outer tube, the second hole is corresponding to the second outer tube, the first outer tube passes through the corresponding first hole, and the second outer tube passes through the corresponding second hole;

[0020] The moving mold has a third hole and a fourth hole. The third hole corresponds to the third outer tube, and the fourth hole corresponds to the second inner tube. The third outer tube passes through the corresponding third hole, and the second inner tube passes through the corresponding fourth hole.

[0021] Preferably, a first sealing ring is provided between the first hole and the first outer tube, a second sealing ring is provided between the second hole and the second outer tube, a third sealing ring is provided between the third hole and the third outer tube, and a fourth sealing ring is provided between the fourth hole and the second inner tube.

[0022] Beneficial effects:

[0023] The injection mold provided by this utility model includes a first liquid cooling assembly comprising a first side tube and a first inner tube disposed within a stationary mold. All the first side tubes are spaced apart circumferentially along the stationary mold and form a closed loop, specifically for cooling the periphery of the stationary mold. The first inner tube is located inside all the first side tubes, i.e., inside the closed loop formed by all the first side tubes, specifically for cooling the central portion of the stationary mold. A second liquid cooling assembly comprises a second side tube and a second inner tube. The second side tubes are disposed within a moving mold, and the second inner tube is partially disposed within the moving mold. All the second side tubes are spaced apart circumferentially along the stationary mold and form a closed loop, specifically for cooling the periphery of the moving mold. The second inner tube is located inside all the second side tubes, i.e., inside the closed loop formed by all the second side tubes, specifically for cooling the central portion of the moving mold. The use of multiple first and second side pipes shortens the length of a single cooling pipe section, allowing each first and second side pipe to independently connect to the circulating refrigerant. The refrigerant circulates independently without interfering with each other, improving refrigerant circulation efficiency. This enables the refrigerant to effectively absorb heat and quickly dissipate it through circulation, enhancing cooling performance. Furthermore, the first side pipe, in conjunction with the first inner pipe, covers the periphery and center of the stationary mold, while the second side pipe, in conjunction with the second inner pipe, covers the periphery and center of the moving mold. This improves the uniformity of cooling the entire injection mold, reduces cooling blind spots within the mold, ensures the reliability and effectiveness of cooling, effectively shortens the injection molding cycle, and increases production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the injection mold provided by this utility model from one perspective;

[0025] Figure 2 This is a partial structural schematic diagram of the injection mold provided by this utility model from one perspective;

[0026] Figure 3 This is a schematic diagram of the structure of the first liquid cooling component provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the first extension tube provided by this utility model;

[0028] Figure 5 This is a structural schematic diagram of the injection mold provided by this utility model from another perspective;

[0029] Figure 6 This is a partial structural schematic diagram of the injection mold provided by this utility model from another perspective;

[0030] Figure 7 This is a schematic diagram of the structure of the second liquid cooling component provided by this utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the second extension tube provided by this utility model.

[0032] In the picture:

[0033] 1. Static mold; 11. First hole; 12. Second hole; 13. First sealing ring; 14. Second sealing ring;

[0034] 2. Moving mold; 21. Third hole; 22. Fourth hole; 23. Third sealing ring; 24. Fourth sealing ring;

[0035] 3. First liquid cooling assembly; 31. First side tube; 32. First inner tube; 321. Tube shell; 322. Sealing cap; 33. First extension tube; 3301. First bypass flow channel; 3302. First flow gap; 331. First tube body; 3311. First inlet; 3312. First outlet; 332. First partition; 333. First mounting head; 34. First outer tube; 341. First connector; 35. Second outer tube; 351. Second connector;

[0036] 4. Second liquid cooling assembly; 41. Second side tube; 42. Second inner tube; 43. Second extension tube; 4301. Second bypass flow channel; 4302. Second flow gap; 431. Second tube body; 4311. Second inlet; 4312. Second outlet; 432. Second baffle; 433. Second mounting head; 44. Third outer tube; 441. Third connector; 45. Fourth outer tube; 451. Fourth connector. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] This embodiment provides an injection mold. (Refer to...) Figures 1 to 8As shown, the injection mold includes a mold body, a first liquid cooling assembly 3, and a second liquid cooling assembly 4. The mold body includes a stationary mold 1 and a moving mold 2. The first liquid cooling assembly 3 includes a first side tube 31 and a first inner tube 32, both located within the stationary mold 1. At least two first side tubes 31 are provided, spaced apart circumferentially along the stationary mold 1 to form a closed loop. The first inner tube 32 is located inside all the first side tubes 31. The second liquid cooling assembly 4 includes a second side tube 41 and a second inner tube 42, both located within the moving mold 2. At least two second side tubes 41 are provided, spaced apart circumferentially along the moving mold 2 to form a closed loop. The second inner tube 42 is located inside all the second side tubes 41.

[0042] In the injection mold provided in this embodiment, all the first side tubes 31 are spaced apart circumferentially along the stationary mold 1 and form a closed loop, specifically for cooling the periphery of the stationary mold 1. The first inner tube 32 is located inside all the first side tubes 31, that is, inside the closed loop formed by all the first side tubes 31, specifically for cooling the central portion of the stationary mold 1. The second liquid cooling assembly 4 includes second side tubes 41 and second inner tubes 42. All the second side tubes 41 are spaced apart circumferentially along the stationary mold 1 and form a closed loop, specifically for cooling the periphery of the moving mold 2. The second inner tube 42 is located inside all the second side tubes 41, that is, inside the closed loop formed by all the second side tubes 41, specifically for cooling the central portion of the moving mold 2. The arrangement of multiple first side pipes 31 and multiple second side pipes 41 shortens the length of a single cooling pipe section, allowing each first side pipe 31 and each second side pipe 41 to be independently connected to the circulating refrigerant. The refrigerant circulates independently without affecting each other, improving refrigerant circulation efficiency. This enables the refrigerant to effectively absorb heat and quickly remove it through circulation, thus enhancing cooling performance. Furthermore, the first side pipe 31, in conjunction with the first inner pipe 32, covers the periphery and center of the stationary mold 1, while the second side pipe 41, in conjunction with the second inner pipe 42, covers the periphery and center of the moving mold 2. This improves the uniformity of cooling the entire injection mold, reduces cooling blind spots within the mold, ensures the reliability and effectiveness of cooling, effectively shortens the injection molding cycle, and increases production efficiency.

[0043] In this embodiment, the first liquid cooling assembly 3 further includes a first extension tube 33 disposed within the stationary mold 1, and the first extension tube 33 is connected to the first side tube 31. At least one first extension tube 33 is connected to the first side tube 31. Specifically, the first extension tube 33 extends from the outside of the stationary mold 1 towards the inner center. The arrangement of the first extension tube 33 can further increase the cooling area of ​​the stationary mold 1, further improve the cooling coverage of the stationary mold 1, and thus ensure the uniformity of cooling of the stationary mold 1 as a whole. The second liquid cooling assembly 4 further includes a second extension tube 43 disposed within the moving mold 2, and the second extension tube 43 is connected to the second side tube 41. At least one second extension tube 43 is connected to the second side tube 41. Specifically, the second extension tube 43 extends from the outside of the stationary mold 1 towards the inner center. The arrangement of the second extension tube 43 can further increase the cooling area of ​​the moving mold 2, further improve the cooling coverage of the moving mold 2, and thus ensure the uniformity of cooling of the moving mold 2 as a whole.

[0044] Specifically, refer to Figure 4 As shown, the first extension pipe 33 includes a first pipe body 331 and a first partition 332. The first partition 332 is disposed inside the first pipe body 331 and divides the internal space of the first pipe body 331 to form a first detour flow channel 3301. The refrigerant in the first side pipe 31 flows into the first detour flow channel 3301 and flows back to the first side pipe 31 via the first detour flow channel 3301. Specifically, the first partition 332 further divides the internal space of the first pipe body 331 to form the first detour flow channel 3301. This arrangement can directionally plan the flow path of the refrigerant in the first pipe body 331, extending the flow distance of the refrigerant while ensuring that the refrigerant heat absorption has not reached saturation, thereby further improving the heat absorption efficiency of the refrigerant.

[0045] For example, the first detour channel 3301 is configured as U-shaped.

[0046] Furthermore, the first tube body 331 has a first inlet 3311 and a first outlet 3312 on opposite sides of its first end. The first tube body 331 is connected to the first side tube 31 through the first inlet 3311 and the first outlet 3312. A first baffle 332 is disposed between the first inlet 3311 and the first outlet 3312, and a first flow gap 3302 is provided between the first baffle 332 and the second end of the first tube body 331. Specifically, the first flow gap 3302 is the curved part of the U-shaped first meandering flow channel 3301. During the directional flow of the refrigerant, it enters the first meandering flow channel 3301 through the first inlet 3311 and flows within the first meandering flow channel 3301. After passing through the first flow gap 3302, the flow direction changes, and finally it flows back to the first side tube 31 through the first outlet 3312. During this process, reliable and effective cooling can be achieved in the vicinity of the first tube body 331.

[0047] Furthermore, the first extension tube 33 also includes a first mounting head 333, and a first partition plate 332 is fixed to the first mounting head 333. Specifically, the first extension tube 33 can be fixed and sealed at the end of the first tube body 331, while the first partition plate 332 extends into the interior of the first tube body 331. Optionally, the first mounting head 333 and the first tube body 331 are threaded together. The first mounting head 333 has an internal thread, and the end of the first tube body 331 has a corresponding external thread. Through the engagement of the internal and external threads, the first mounting head 333 is fixed after being screwed onto the first tube body 331. The engagement of the internal and external threads can ensure the sealing between the first mounting head 333 and the first tube body 331, preventing refrigerant leakage.

[0048] Specifically, refer to Figure 8 As shown, the second extension pipe 43 includes a second pipe body 431 and a second partition 432. The second partition 432 is disposed inside the second pipe body 431 and divides the internal space of the second pipe body 431 to form a second detour flow channel 4301. The refrigerant in the second side pipe 41 flows into the second detour flow channel 4301 and flows back to the second side pipe 41 via the second detour flow channel 4301. Specifically, the second partition 432 further divides the internal space of the second pipe body 431 to form the second detour flow channel 4301. This arrangement can directionally plan the flow path of the refrigerant in the second pipe body 431, extending the flow distance of the refrigerant while ensuring that the refrigerant heat absorption has not reached saturation, thereby further improving the heat absorption efficiency of the refrigerant.

[0049] For example, the second detour channel 4301 is configured as U-shaped.

[0050] Furthermore, the second tube body 431 has a second inlet 4311 and a second outlet 4312 on opposite sides of its first end. The second tube body 431 is connected to the second side tube 41 through the second inlet 4311 and the second outlet 4312. A second baffle 432 is disposed between the second inlet 4311 and the second outlet 4312, and a second flow gap 4302 is provided between the second baffle 432 and the second end of the second tube body 431. Specifically, the second flow gap 4302 is the curved part of the U-shaped second meandering flow channel 4301. During the directional flow of the refrigerant, it enters the second meandering flow channel 4301 through the second inlet 4311 and flows within the second meandering flow channel 4301. After passing through the second flow gap 4302, the flow direction changes, and finally flows back to the second side tube 41 through the second outlet 4312. During this process, reliable and effective cooling can be achieved in the vicinity of the second tube body 431.

[0051] Furthermore, the second extension tube 43 also includes a second mounting head 433, and a second partition plate 432 is fixed to the second mounting head 433. Specifically, the second extension tube 43 can be fixed and sealed at the end of the second tube body 431, while the second partition plate 432 extends into the interior of the second tube body 431. Optionally, the second mounting head 433 and the second tube body 431 are threaded together. The second mounting head 433 has an internal thread, and the end of the second tube body 431 has a corresponding external thread. Through the engagement of the internal and external threads, the second mounting head 433 is fixed after being screwed onto the second tube body 431. The engagement of the internal and external threads ensures the sealing between the second mounting head 433 and the second tube body 431, preventing refrigerant leakage.

[0052] Furthermore, the end of the first tube 331 corresponding to the first flow gap 3302 is set as a convex cone shape, and the end of the second tube 431 corresponding to the second flow gap 4302 is also set as a convex cone shape. This configuration facilitates the rapid and stable flow of refrigerant through the first flow gap 3302 and the second flow gap 4302, thereby improving the refrigerant throughput.

[0053] In some other alternative embodiments, the shape and number of the first baffle 332 in the first tube 331 and the shape and number of the second baffle 432 in the second tube 431 can be adapted to adjust the shape and length of the first detour channel 3301 and the second detour channel 4301. The shape of the first detour channel 3301 and the second detour channel 4301 can also be set to other shapes such as S-shape.

[0054] In this embodiment, the first inner pipe 32 is configured as a shaped pipe, which can be C-shaped, S-shaped, or O-shaped. Specifically, in the accompanying drawings of this embodiment, the first inner pipe 32 is configured as a C-shaped shaped pipe. The refrigerant enters from the first end of the C-shaped shaped pipe and exits from the second end. By configuring the first inner pipe 32 as a shaped pipe, the number of pipes can be reduced, and by setting the shaped pipe, some internal structures can be avoided, and more areas to be cooled can be covered as much as possible, thus improving the uniformity of cooling.

[0055] Specifically, when the first inner tube 32 is set as a C-shaped special tube, its longitudinal section has a length of 20mm and a height of 8mm.

[0056] Specifically, the first inner tube 32 includes a tube shell 321 and a sealing cap 322 covering the tube shell 321. The tube shell 321 is fixed inside the stationary mold 1, and the sealing cap 322 is fixedly covered on the tube shell 321. The sealing cap 322 has a hole structure for refrigerant leaching.

[0057] Optionally, the sealing cap 322 may be made of rubber.

[0058] In this embodiment, reference is made to Figures 1 to 3 As shown, the first liquid cooling assembly 3 also includes a first outer tube 34 and a second outer tube 35. The first end of the first outer tube 34 is inserted into the stationary mold 1 and communicates with the end of the first side tube 31. The first end of the second outer tube 35 is inserted into the stationary mold 1 and communicates with the end of the first inner tube 32. The second ends of both the first outer tube 34 and the second outer tube 35 are connected to a refrigerant circulation container (not shown). Specifically, the first outer tube 34 is connected to both opposite sides of the first side tube 31. Of the two first outer tubes 34, one is the refrigerant inlet and the other is the refrigerant outlet. The two first outer tubes 34 are connected to the refrigerant circulation container, thereby allowing the first side tube 31 to form a refrigerant circulation loop corresponding to the periphery of the stationary mold 1 through the first outer tubes 34. Specifically, the second outer tube 35 is connected to both opposite ends of the first inner tube 32. Of the two second outer tubes 35, one is the refrigerant inlet and the other is the refrigerant outlet. Two second outer pipes 35 are connected to the refrigerant circulation container, thereby enabling the first inner pipe 32 to form a refrigerant circulation loop corresponding to the center of the static mold 1 through the second outer pipes 35.

[0059] Specifically, to facilitate connection to the refrigerant circulation container, multiple first outer pipes 34 corresponding to the refrigerant inlet are located on one side of the stationary mold 1, and multiple first outer pipes 34 corresponding to the refrigerant outlet are located on the other side of the stationary mold 1. Multiple second outer pipes 35 corresponding to the refrigerant inlet are located on one side of the stationary mold 1, and multiple second outer pipes 35 corresponding to the refrigerant outlet are located on the other side of the stationary mold 1.

[0060] Specifically, each end of the first side pipe 31 is provided with a first connector 341, through which the first side pipe 31 can be connected to an external pipeline or a refrigerant circulation container. Each end of the second side pipe 41 is provided with a second connector 351, through which the second side pipe 41 can be connected to an external pipeline or a refrigerant circulation container.

[0061] Furthermore, the stationary mold 1 has a first hole 11 and a second hole 12. The first hole 11 corresponds to the first outer tube 34, and the second hole 12 corresponds to the second outer tube 35. The first outer tube 34 passes through the corresponding first hole 11, and the second outer tube 35 passes through the corresponding second hole 12. Specifically, the first outer tube 34 is inserted into the interior of the stationary mold 1 through the first hole 11 and communicates with the first side tube 31, and the second outer tube 35 is inserted into the interior of the stationary mold 1 through the second hole 12 and communicates with the first inner tube 32.

[0062] Furthermore, a first sealing ring 13 is provided between the first hole 11 and the first outer tube 34, and a second sealing ring 14 is provided between the second hole 12 and the second outer tube 35. The first sealing ring 13 can effectively seal the joint gap between the first hole 11 and the first outer tube 34, and the second sealing ring 14 can effectively seal the joint gap between the second hole 12 and the second outer tube 35, thereby ensuring reliable sealing inside the injection mold.

[0063] For example, both the first sealing ring 13 and the second sealing ring 14 are made of rubber.

[0064] In this embodiment, reference is made to Figures 5 to 7 As shown, the second liquid cooling assembly 4 also includes a third outer tube 44 and a fourth outer tube 45. The first end of the third outer tube 44 is inserted into the moving mold 2 and communicates with the end of the second side tube 41. The first end of the fourth outer tube 45 is located outside the moving mold 2 and communicates with the end of the second inner tube 42 that extends outside the moving mold 2. The second ends of both the third outer tube 44 and the fourth outer tube 45 are connected to the refrigerant circulation container. Specifically, the two opposite sides of the second side tube 41 are connected to the second outer tube 35. Of the two second outer tubes 35, one is the refrigerant inlet and the other is the refrigerant outlet. The two second outer tubes 35 are connected to the refrigerant circulation container, thereby allowing the second side tube 41 to form a refrigerant circulation loop corresponding to the periphery of the moving mold 2 through the second outer tubes 35. Specifically, the second inner tube 42 forms a refrigerant loop corresponding to the center of the moving mold 2 through the second outer tubes 35.

[0065] Specifically, multiple sets of second inner tubes 42 are provided, with each set containing multiple second inner tubes 42. Each set of second inner tubes 42 corresponds to one fourth outer tube 45, and one end of each set of second inner tubes 42 extending out of the moving mold 2 is connected to the corresponding fourth outer tube 45. In this embodiment, two sets of second inner tubes 42 are provided, with four second inner tubes 42 in each set, and two corresponding fourth outer tubes 45 are provided. One end of the fourth outer tube 45 is the refrigerant inlet, and the other end is the refrigerant outlet. Both ends of the fourth outer tube 45 are connected to the refrigerant circulation container.

[0066] Specifically, to facilitate connection to the refrigerant circulation container, multiple third outer pipes 44 corresponding to the refrigerant inlet are located on one side of the moving mold 2, and multiple third outer pipes 44 corresponding to the refrigerant outlet are located on the other side of the moving mold 2. The refrigerant inlet of multiple fourth outer pipes 45 is located on one side of the moving mold 2, and the refrigerant outlet of multiple fourth outer pipes 45 is located on the other side of the moving mold 2.

[0067] Specifically, each end of the third side pipe is provided with a third connector 441, through which the third side pipe can be connected to an external pipeline or a refrigerant circulation container. Each end of the fourth side pipe is provided with a fourth connector 451, through which the fourth side pipe can be connected to an external pipeline or a refrigerant circulation container.

[0068] Furthermore, the moving mold 2 has a third hole 21 and a fourth hole 22. The third hole 21 corresponds to the third outer tube 44, and the fourth hole 22 corresponds to the second inner tube 42. The third outer tube 44 passes through the corresponding third hole 21, and the second inner tube 42 passes through the corresponding fourth hole 22. Specifically, the third outer tube 44 is inserted into the moving mold 2 through the third hole 21 and communicates with the second side tube 41, and the second inner tube 42 is inserted into the moving mold 2 through the fourth hole 22.

[0069] Furthermore, a third sealing ring 23 is provided between the third hole 21 and the third outer tube 44, and a fourth sealing ring 24 is provided between the fourth hole 22 and the second inner tube 42.

[0070] The third sealing ring 23 can effectively seal the joint gap between the third hole 21 and the second outer tube 35, and the fourth sealing ring 24 can effectively seal the joint gap between the fourth hole 22 and the second inner tube 42, thereby ensuring reliable sealing inside the injection mold.

[0071] For example, both the third sealing ring 23 and the fourth sealing ring 24 are made of rubber.

[0072] In this embodiment, the stationary mold 1 has a first cavity (not shown), the diameter of the first side tube 31 and the first inner tube 32 is D1, and the distance between the first side tube 31 and the first inner tube 32 and the first cavity is 1.5D1.

[0073] The moving mold 2 has a second cavity (not shown), the diameter of the second side tube 41 and the second inner tube 42 is D2, and the distance between the second side tube 41, the second inner tube 42 and the second cavity is 1.5D2. This arrangement can increase the refrigerant flow rate while reducing the refrigerant flow resistance, ensuring uniform cooling of the entire mold.

[0074] In this embodiment, the diameters of the first side tube 31, the first inner tube 32, the first outer tube 34, and the second outer tube 35 are set to 6mm, and the diameters of the second side tube 41, the second inner tube 42, the third outer tube 44, and the fourth outer tube 45 are set to 6mm.

[0075] In this embodiment, the diameters of the first tube body 331 of the first extension tube 33 and the second tube body 431 of the second extension tube 43 are set to 12 mm.

[0076] The injection mold provided in this embodiment is used for injection molding of circuit breaker housings, and can also be used in injection molds for molding other components, without further limitations.

[0077] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An injection mold characterized in that, include: The mold body includes a stationary mold (1) and a moving mold (2); The first liquid cooling assembly (3) includes a first side tube (31) and a first inner tube (32). The first side tube (31) and the first inner tube (32) are both located inside the stationary mold (1). There are at least two first side tubes (31). All the first side tubes (31) are spaced apart around the stationary mold (1) and form a closed loop. The first inner tube (32) is located inside all the first side tubes (31). The second liquid cooling assembly (4) includes a second side tube (41) and a second inner tube (42). The second side tube (41) is disposed inside the moving mold (2), and the second inner tube (42) is partially disposed inside the moving mold (2). There are at least two second side tubes (41). All the second side tubes (41) are spaced apart circumferentially along the moving mold (2) and form a closed loop. The second inner tube (42) is located inside all the second side tubes (41).

2. The injection mold of claim 1, wherein The first liquid cooling assembly (3) further includes a first extension tube (33) disposed in the stationary mold (1), the first extension tube (33) being connected to the first side tube (31); the second liquid cooling assembly (4) further includes a second extension tube (43) disposed in the moving mold (2), the second extension tube (43) being connected to the second side tube (41).

3. The injection mold of claim 2, wherein, The first extension pipe (33) includes a first pipe body (331) and a first partition (332). The first partition (332) is disposed inside the first pipe body (331) and separates the internal space of the first pipe body (331) to form a first detour channel (3301). The refrigerant in the first side pipe (31) flows into the first detour channel (3301) and flows back to the first side pipe (31) through the first detour channel (3301). The second extension pipe (43) includes a second pipe body (431) and a second partition (432). The second partition (432) is disposed inside the second pipe body (431) and separates the internal space of the second pipe body (431) to form a second detour channel (4301). The refrigerant in the second side pipe (41) flows into the second detour channel (4301) and flows back to the second side pipe (41) via the second detour channel (4301).

4. The injection mold according to claim 3, characterized in that, The first tube body (331) has a first inlet (3311) and a first outlet (3312) on opposite sides of its first end. The first tube body (331) is connected to the first side tube (31) through the first inlet (3311) and the first outlet (3312). The first partition (332) is disposed between the first inlet (3311) and the first outlet (3312). The first partition (332) and the second end of the first tube body (331) have a first flow gap (3302). The second pipe body (431) has a second inlet (4311) and a second outlet (4312) on opposite sides of the first end. The second pipe body (431) is connected to the second side pipe (41) through the second inlet (4311) and the second outlet (4312). The second baffle (432) is disposed between the second inlet (4311) and the second outlet (4312). The second baffle (432) and the second end of the second pipe body (431) have a second flow gap (4302).

5. The injection mold of claim 4, wherein, The end of the first tube (331) corresponding to the first flow gap (3302) is set as an outwardly convex cone, and the end of the second tube (431) corresponding to the second flow gap (4302) is set as an outwardly convex cone.

6. The injection mold of claim 1, wherein, The first inner tube (32) is configured as a special-shaped tube, and the shape of the special-shaped tube is configured as C-shaped, S-shaped or O-shaped.

7. The injection mold of claim 6, wherein The first liquid cooling assembly (3) further includes a first outer tube (34) and a second outer tube (35). The first end of the first outer tube (34) is inserted into the stationary mold (1) and communicates with the end of the first side tube (31). The first end of the second outer tube (35) is inserted into the stationary mold (1) and communicates with the end of the first inner tube (32). The second ends of the first outer tube (34) and the second ends of the second outer tube (35) are both connected to a refrigerant circulation container. The second liquid cooling assembly (4) further includes a third outer tube (44) and a fourth outer tube (45). The first end of the third outer tube (44) is inserted into the moving mold (2) and communicates with the end of the second side tube (41). The first end of the fourth outer tube (45) is located outside the moving mold (2) and communicates with the end of the second inner tube (42) that extends outside the moving mold (2). The second ends of the third outer tube (44) and the second ends of the fourth outer tube (45) are both connected to a refrigerant circulation container.

8. The injection mold of claim 7, wherein, The second inner tube (42) is provided in multiple groups, and each group of the second inner tube (42) is provided with multiple tubes. Each group of the second inner tube (42) corresponds to one of the fourth outer tubes (45), and the end of the second inner tube (42) of each group that extends out of the moving mold (2) is connected to the corresponding fourth outer tube (45).

9. The injection mold of claim 7, wherein, The static mold (1) has a first hole (11) and a second hole (12). The first hole (11) is corresponding to the first outer tube (34), and the second hole (12) is corresponding to the second outer tube (35). The first outer tube (34) passes through the corresponding first hole (11), and the second outer tube (35) passes through the corresponding second hole (12). The moving mold (2) has a third hole (21) and a fourth hole (22). The third hole (21) is corresponding to the third outer tube (44), and the fourth hole (22) is corresponding to the second inner tube (42). The third outer tube (44) passes through the corresponding third hole (21), and the second inner tube (42) passes through the corresponding fourth hole (22).

10. The injection mold of claim 9, wherein, The first sealing ring (13) is arranged between the first hole (11) and the first outer tube (34), the second sealing ring (14) is arranged between the second hole (12) and the second outer tube (35), the third sealing ring (23) is arranged between the third hole (21) and the third outer tube (44), and the fourth sealing ring (24) is arranged between the fourth hole (22) and the second inner tube (42).

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