A pole mold

Abstract

The embodiment of the present application discloses a pole mold for forming a pole, and the pole mold includes a bottom mold, a fixed mold and a movable mold. The fixed mold and the movable mold are arranged on the bottom mold, and the fixed mold, the movable mold and the bottom mold are detachably connected, and the fixed mold, the movable mold and the bottom mold are surrounded to form at least two cavities, and the cavities match the shape of the pole. The pole mold of the embodiment of the present application is helpful to improve the problem of difficult demolding and improve production efficiency by setting an auxiliary demolding mechanism. The pole mold of the embodiment of the present application, by setting the pole mold to include a bottom mold, a fixed mold and a movable mold, the bottom mold can be used to support and fix the entire pole mold system, which is helpful to improve the stability, reliability and assembly efficiency of the pole mold. In addition, by surrounding the fixed mold, the movable mold and the bottom mold to form at least two cavities, the pole mold can be formed into a solid-sealed body of at least two poles in a single injection molding process, thereby improving production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of pole molds, and in particular to a pole mold. Background Art

[0002] Pole-mounted circuit breaker is an important device used to protect the safe operation of power systems. It is usually installed on the poles of transmission lines. It can quickly cut off the circuit when the transmission status is abnormal to prevent dangers such as overload and short circuit and protect the power system.

[0003] Taking the integral casting of the pole by the pole mold as an example, in the related art, the pole mold used for forming the pole can only produce one piece of the pole sealing body in one injection molding process, which has the problem of low production efficiency. Summary of the invention

[0004] In view of this, an embodiment of the present application hopes to provide a pole mold, which is conducive to improving production efficiency.

[0005] To solve the above problems, the technical solution of the embodiment of the present application is implemented as follows:

[0006] The present application embodiment provides a pole mold, including:

[0007] Bottom mold;

[0008] A fixed mold and a movable mold, wherein the fixed mold and the movable mold are arranged on the bottom mold, the fixed mold, the movable mold and the bottom mold are detachably connected, and the fixed mold, the movable mold and the bottom mold are surrounded to form at least two cavities, and the cavities match the shape of the pole.

[0009] In some embodiments, the number of the cavities is two, the two cavities are symmetrically arranged with respect to a reference plane, and the closing direction of the fixed mold and the movable mold and the height direction of the pole mold are parallel to the reference plane.

[0010] In some embodiments, the pole comprises a sealing body, a conductive rod and a first insulating cylinder, the first insulating cylinder is electrically connected to the conductive rod, the sealing body has a first installation cavity, and the first insulating cylinder is disposed in the first installation cavity;

[0011] The pole mold includes a first core puller, which is detachably arranged in the cavity. The first core puller positions the conductive rod, and the shape of the first core puller matches the shape of the first mounting cavity. The first core puller and the conductive rod are spaced apart from at least a portion of the cavity wall of the cavity to form at least a partial spacing space, and the spacing space is used for casting and molding the solid seal body.

[0012] In some embodiments, the pole mold includes a die assembly having a first die, the first die is connected to the conductive rod, and the first die is disposed at the first core puller to position the conductive rod.

[0013] In some embodiments, the pole includes a vacuum interrupter and a first connector, and the end of the conductive rod close to the vacuum interrupter has a first connecting hole, and the first connecting hole is used to connect to the vacuum interrupter through the first connector after the solid seal is cast;

[0014] The pole mold includes a second connecting piece, and the first die head has a second connecting hole. When the first die head is installed on the conductive rod, the second connecting hole is correspondingly connected to the first connecting hole and is connected through the second connecting piece.

[0015] In some embodiments, the second connection hole is a through hole that passes through the first die head, and the first connection hole is open only on one side close to the second connection hole;

[0016] From the side of the second connecting hole away from the first connecting hole, the second connecting member is sequentially penetrated through the second connecting hole and the first connecting hole, and the side of the first die head away from the first connecting hole is fitted with the first core pulling.

[0017] In some embodiments, the conductive rod includes a rod body and a connecting portion, an end of the rod body close to the first core pulling is connected to the connecting portion, the first die head is connected to the connecting portion, and a partial area of ​​the connecting portion extends along the radial direction of the rod body to form a positioning protrusion;

[0018] A partial area of ​​one side of the first die head close to the positioning protrusion is recessed to form a first positioning groove for positioning and installing the positioning protrusion.

[0019] In some embodiments, a partial area of ​​the first core pulling portion on a side close to the first die head is recessed to form a second positioning groove, and at least a partial area of ​​the first die head is disposed in the second positioning groove.

[0020] In some embodiments, the pole includes a vacuum arc chamber, and the conductive rod is connected to the vacuum arc chamber; toward the side away from the vacuum arc chamber, the outer dimensions of the area where the first die head at least extends into the second positioning groove gradually decrease.

[0021] In some embodiments, the die assembly includes a second die, which is connected to one end of the conductive rod away from the first core pulling; the pole mold includes a positioning structure, which is arranged on the fixed mold and abuts against one end of the second die away from the conductive rod to position the conductive rod.

[0022] In some embodiments, the positioning structure includes a mounting seat, a driving member and an abutment portion, the mounting seat is disposed on the fixed die, the driving member is threadedly connected to the mounting seat, and the abutment portion is disposed at one end of the driving member close to the second die head;

[0023] The driving member drives the abutting portion to move toward an end close to the second die head to position the second die head.

[0024] In some embodiments, the positioning structure includes a locking member, which is disposed on the movable die. The locking member can move toward the direction approaching the second die head and abut against the second die head to lock and position the second die head.

[0025] In some embodiments, the pole includes an inlet terminal and a second insulating tube, the second insulating tube is connected to the inlet terminal, the sealing body has a second installation cavity separated from the first installation cavity, and the second insulating tube is arranged in the second installation cavity;

[0026] The pole mold includes a second core puller, which is detachably arranged in the cavity. The shape of the second core puller matches the shape of the second installation cavity, and the second core puller is respectively spaced apart from the first core puller and at least a partial area of ​​the cavity wall of the cavity.

[0027] In some embodiments, the pole includes a first connecting cap electrically connected to the incoming line end, and the first connecting cap is used to connect to the second insulating tube after the solid sealing body is cast and formed; the die assembly includes a third die, one end of the third die is detachably connected to the first connecting cap, and the other end of the third die is detachably connected to the second core pulling.

[0028] In some embodiments, the pole includes a second connecting cap electrically connected to the conductive rod, and the second connecting cap is used to connect to the first insulating tube after the solid sealing body is cast and formed; the die assembly includes a fourth die, one end of the fourth die is detachably connected to the second connecting cap, and the other end of the fourth die is detachably connected to the first core pulling.

[0029] In some embodiments, the pole mold includes an ejection mechanism, and the ejection mechanism is disposed on the fixed mold and / or the movable mold to eject the pole when the fixed mold and the movable mold are separated.

[0030] In some embodiments, the ejection mechanism includes a first ejection mechanism, which is disposed on the fixed mold. The first ejection mechanism includes a transmission shaft, an eccentric wheel and a first ejection rod. The eccentric wheel is fixed to the transmission shaft, and the transmission shaft drives the eccentric wheel to rotate to drive the first ejection rod to move toward the movable mold.

[0031] In some embodiments, the ejection mechanism includes a second ejection mechanism, which is disposed on the movable mold, and includes an elastic member and a second ejection rod; during the process of closing the movable mold with the fixed mold, the elastic member is squeezed and elastically deformed, and during the demolding process, the elastic member restores the elastic deformation to drive the second ejection rod to move toward the direction close to the fixed mold.

[0032] In some embodiments, the pole mold includes at least one temperature sensor;

[0033] The fixed mold includes a first molding plate and a first back plate, the first molding plate, the movable mold and the bottom mold are arranged to form the mold cavity, the first back plate is connected to the side of the first molding plate away from the movable mold; the first molding plate is provided with a first mounting groove for installing the temperature sensor, and a first wiring groove connected to the first mounting groove is formed between the first back plate and the first molding plate, and the first wiring groove is used to accommodate the wiring of the temperature sensor.

[0034] In some embodiments, the movable mold includes a second molding plate and a second back plate, the second molding plate, the fixed mold and the bottom mold are arranged to form the mold cavity, the second back plate is connected to the side of the second molding plate facing away from the fixed mold; the second molding plate is provided with a second mounting groove for installing the temperature sensor, and a second wiring groove connected to the second mounting groove is formed between the second back plate and the second molding plate, and the second wiring groove is used to accommodate the wiring of the temperature sensor.

[0035] The pole mold of the embodiment of the present application is used to form a pole. By setting the pole mold to include a bottom mold, a fixed mold and a movable mold, the bottom mold can be used to support and fix the entire pole mold system, which is conducive to improving the stability, reliability and assembly efficiency of the pole mold. In addition, by surrounding the fixed mold, the movable mold and the bottom mold to form at least two cavities, the pole mold can form at least two poles in a single injection molding process, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a pole mold according to an embodiment of the present application;

[0037] Figure 2 for Figure 1 A schematic diagram of a partial structure of a pole mold shown;

[0038] Figure 3 for Figure 1 A cross-sectional view of the pole mold shown;

[0039] Figure 4 for Figure 1 A cross-sectional view of the pole mold from another perspective shown;

[0040] Figure 5 for Figure 1 A schematic diagram of a part of the structure of the pole mold from another perspective shown;

[0041] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0042] Figure 7 for Figure 5 A partial enlarged view from another angle at point A in the middle; the vacuum interrupter and the conducting rod are hidden in the picture;

[0043] Figure 8 for Figure 7 The structural diagram of the second core pulling;

[0044] Fig. 9 for Figure 7 A schematic diagram of the structure of the first die head;

[0045] Fig.10 for Figure 6 Schematic diagram of the structure of the conductive rod;

[0046] Fig.11 for Figure 7 A schematic diagram of the structure of the second die head;

[0047] Fig.12 A partial structural schematic diagram of a pole housing according to an embodiment of the present application.

[0048] Description of Reference Numerals

[0049] 10. Pole mold; 10a. Cavity; 10b. Spacing space; 11. Moving mold; 111. Second molding plate; 111a. Second wiring groove; 111b. Opening; 112. Second back plate; 12. Fixed mold; 121. First molding plate; 122. First back plate; 13. First core pulling; 13a. Second positioning groove; 13b. Third positioning groove; 131. Third core pulling part; 132. Fourth core pulling part; 14. Second core pulling; 15. Third core pulling; 16. Die assembly; 161. First die; 161a. Second connecting hole; 161b. First positioning groove; 162. Second die; 163. Third die; 165. Fifth die; 166. Sixth die; 17. Bottom mold; 1 8. Positioning structure; 181. Mounting seat; 182. Driving member; 183. Abutment portion; 184. Locking member; 19. Ejection mechanism; 191. First ejection mechanism; 1911. Transmission shaft; 1912. Eccentric wheel; 1913. First ejection rod; 192. Second ejection mechanism; 1921. Elastic member; 1922. Second ejection rod; 21. Inlet terminal; 22. Outlet terminal; 23. Solid sealing body; 23a. First mounting cavity; 23b. Second mounting cavity; 23ba. Third sub-cavity; 23bb. Fourth sub-cavity; 23c. Third mounting cavity; 24. Vacuum arc extinguishing chamber; 25. Conductive rod; 25a. First connecting hole; 251. Rod body; 252. Connecting portion; 253. Positioning protrusion. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and are therefore only used as examples, and the protection scope of the present application cannot be limited by this. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0051] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0054] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0055] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0056] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] The present application embodiment provides a pole mold 10, see Figures 1 to 12 The pole mold 10 is used to form the pole. The pole mold 10 includes a bottom mold 17, a fixed mold 12 and a movable mold 11. The fixed mold 12 and the movable mold 11 are arranged on the bottom mold 17, the fixed mold 12, the movable mold 11 and the bottom mold 17 are detachably connected, and the fixed mold 12, the movable mold 11 and the bottom mold 17 are surrounded to form at least two cavities 10a, and the cavity 10a matches the shape of the pole.

[0058] Exemplarily, the pole includes a sealed body 23, an incoming line terminal 21, a vacuum arc chamber 24 and a conductive rod 25, the conductive rod 25 has an outgoing line terminal 22, the two ends of the vacuum arc chamber 24 are electrically connected to the incoming line terminal 21 and the conductive rod 25 respectively, and the high voltage current flows from the incoming line terminal 21 through the vacuum arc chamber 24 and flows out from the outgoing line terminal 22 of the conductive rod 25.

[0059] The inlet terminal 21 of the pole is used for supplying high voltage current into the pole, and the outlet terminal 22 of the conductive rod 25 is used for supplying high voltage current out of the pole.

[0060] Exemplarily, the pole includes an insulating rod, which is used to connect one end of the vacuum interrupter 24 to the electrically connected conductive rod 25. When an abnormality is detected in the distribution network line, the mechanism box pulls the insulating rod downward, so that the insulating rod pulls the moving contact in the vacuum interrupter 24 downward, and the inside of the vacuum interrupter 24 is disconnected, thereby disconnecting the above-mentioned path to achieve the effect of isolating the fault.

[0061] Exemplarily, the pole includes a first insulating tube and a second insulating tube, and the first insulating tube and the second insulating tube are disposed in the sealing body 23 .

[0062] Here, the first insulating tube and the second insulating tube are both tube structures, and the interiors thereof are used to install capacitors (such as voltage sensors or high-voltage capacitors of power extraction devices).

[0063] The first insulating tube is connected to the outlet terminal 22 of the conductive rod 25 , that is, the first insulating tube is electrically connected to the conductive rod 25 , so that the capacitor in the first insulating tube can be connected to the outlet terminal 22 .

[0064] The second insulating tube is connected to the incoming line terminal 21 , that is, the capacitor in the second insulating tube is connected to the incoming line terminal 21 .

[0065] The fixed mold 12, the movable mold 11 and the bottom mold 17 of the pole mold 10 are separable and closable. When the fixed mold 12, the movable mold 11 and the bottom mold 17 are closed, the three can enclose at least two mold cavities 10a.

[0066] Here, the pole mold 10 may have two cavities 10 a inside, or may have more than two cavities 10 a.

[0067] It should be noted that the pole mold 10 can be used for casting the solid sealing body 23, and can be used for integrally injection molding of part of the pole structure (such as the vacuum interrupter 24, the conductive rod 25, etc.) and the solid sealing body 23. It is understandable that the pole mold 10 is used for casting the solid sealing body 23, and is not used for molding the vacuum interrupter 24, the conductive rod 25, the insulating pull rod, the first insulating cylinder, the second insulating cylinder and other structures of the pole.

[0068] The cavity 10a is the cavity inside the pole mold 10 after the mold is closed, and the shape of the cavity 10a matches the shape of the pole. That is to say, after installing some structures of the pole (such as the vacuum arc extinguishing chamber 24, the conductive rod 25, etc.), various core pullers and other accessory structures (such as the die head assembly 16) into the cavity 10a, the casting material is injected into the cavity 10a, and after it is cooled and demolded, the solid sealing body 23 can be formed, and the vacuum arc extinguishing chamber 24, the conductive rod 25, various core pullers and other accessories and other structures have been installed in the solid sealing body 23. Then, the various core pullers and other accessory structures are pulled out of the solid sealing body 23, and then the insulating pull rods and various insulating tube structures are installed in the corresponding positions to complete the assembly of the pole.

[0069] The pole mold 10 of the embodiment of the present application is used to form a pole. By setting the pole mold 10 to include a bottom mold 17, a fixed mold 12 and a movable mold 11, the bottom mold 17 can be used to support and fix the entire pole mold 10 system, which is conducive to improving the stability, reliability and assembly efficiency of the pole mold 10. In addition, by surrounding the fixed mold 12, the movable mold 11 and the bottom mold 17 to form at least two cavities 10a, the pole mold 10 can form at least two poles in a single injection molding process. The solid seal body 23 improves production efficiency.

[0070] In some embodiments, see Figure 3 and Figure 5 The number of the cavities 10a is two, and the two cavities 10a are symmetrically arranged with respect to the reference plane. The closing direction of the fixed mold 12 and the movable mold 11 and the height direction of the pole mold 10 are parallel to the reference plane.

[0071] Here, by setting the number of the cavities 10a to two, the pole mold 10 can form two pole sealing bodies 23 in one injection molding process, which improves production efficiency and is also beneficial to the molding of the pole mold 10.

[0072] In this embodiment, the two cavities 10a are symmetrically arranged with respect to the reference plane, which is beneficial to the layout of the pole mold 10, thereby improving the structural compactness of the pole mold 10. In addition, it is also beneficial to fix the inserts of the pole (such as the vacuum arc chamber 24, the conductive rod 25, etc.).

[0073] Exemplarily, the sealing body 23 has a first installation cavity 23 a , and the first insulation tube is disposed in the first installation cavity 23 a .

[0074] In some embodiments, see Figures 3 to 5The pole mold 10 includes a first core pull 13, which is detachably arranged in the cavity 10a. The first core pull 13 positions the conductive rod 25, and the shape of the first core pull 13 matches the shape of the first installation cavity 23a. The first core pull 13 and the conductive rod 25 are spaced apart from at least part of the cavity wall of the cavity 10a to form at least part of the spacing space 10b, and the spacing space 10b is used for casting and molding the solid seal body 23.

[0075] That is to say, after the sealing body 23 is cast and formed, the cavity formed after the first core pulling 13 is removed is the first installation cavity 23a.

[0076] In the pole mold 10 of the embodiment of the present application, on the one hand, by matching the shape of the first core pull 13 with the shape of the first installation cavity 23a, a first installation cavity 23a capable of installing the first insulating tube can be formed in the solid sealing body 23 cast by the pole mold 10. On the other hand, it is convenient to position and install the conductive rod 25 at the corresponding position in the cavity 10a, and after the solid sealing body 23 is cast by the pole mold 10, the conductive rod 25 can be located at the installation position in the solid sealing body 23 without further assembly. In addition, the first core pull 13 can have a good fixing effect on the conductive rod 25, and can improve the installation stability of the conductive rod 25 in the pole mold 10.

[0077] For example, see Figures 3 to 6 , the insulating pull rod is also arranged in the first installation cavity 23a.

[0078] Since the first insulating tube is connected to the outlet terminal 22, and the insulating rod is also connected to one end of the vacuum arc chamber 24 which is electrically connected to the outlet terminal 22, when the vacuum arc chamber 24 of the pole is disconnected, the first insulating tube and the insulating rod are both at the same or similar low potential, and there is no large voltage difference between the two, so no local discharge will occur between the two.

[0079] Here, the first core puller 13 can be set larger, with a size larger than the total outer dimensions of the first insulating tube and the insulating rod, so that the size of the first installation cavity 23a formed by the first core puller 13 is larger than the total outer dimensions of the first insulating tube and the insulating rod, thereby facilitating the installation of both the first insulating tube and the insulating rod in the first installation cavity 23a. The first insulating tube and the insulating rod do not need to be placed in separate installation cavities respectively, thereby reducing the amount of casting material used in the solid sealing body 23.

[0080] As a result, the space for installing the insulating rod in the sealing body 23 is connected to the space for installing the first insulating tube, which can reduce the amount of casting material between the insulating rod and the first insulating tube, thereby reducing the overall casting material amount in the process of forming the pole, thereby reducing material costs and further reducing the weight of the pole.

[0081] Exemplarily, the sealing body 23 has a second installation cavity 23 b separated from the first installation cavity 23 a , and the insulating pull rod and the second insulating cylinder are both arranged in the second installation cavity 23 b .

[0082] In some embodiments, see Figures 6 to 8 The pole mold 10 includes a second core puller 14, which is detachably arranged in the cavity 10a. The shape of the second core puller 14 matches the shape of the second installation cavity 23b, and the second core puller 14 is respectively spaced apart from the first core puller 13 and at least a partial area of ​​the cavity wall of the cavity 10a.

[0083] That is to say, after the sealing body 23 is cast and formed, the cavity formed after the second core pulling 14 is removed is the second installation cavity 23b.

[0084] In the pole mold 10 of the embodiment of the present application, by matching the shape of the second core pull 14 with the shape of the second installation cavity 23b, a second installation cavity 23b for installing the second insulating tube can be formed in the solid sealing body 23 cast by the pole mold 10.

[0085] Since the first core pull 13 and the second core pull 14 are spaced apart from each other, rather than being fitted together, during the casting process, the casting material will fill the space between the first core pull 13 and the second core pull 14. After the casting is completed, the first core pull 13 and the second core pull 14 are separated, and the first installation cavity 23a and the second installation cavity 23b formed by the two respectively will also be separated from each other.

[0086] It should be noted that since the second insulating tube is connected to the incoming line terminal 21, and the insulating rod is connected to the end of the vacuum arc chamber 24 that is electrically connected to the outgoing line terminal 22, when the vacuum arc chamber 24 of the pole is disconnected, the second insulating tube is still at a high potential, while the insulating rod maintains a low potential, which results in a large voltage difference between the second insulating tube and the insulating rod, which poses a risk of local discharge and easily causes damage to the structure.

[0087] Therefore, in the process of forming the pole by the pole mold 10, the first core puller 13 and the second core puller 14 are spaced apart from each other, so that the first installation cavity 23a and the second installation cavity 23b are also separated from each other, so that the second insulating tube is separated from the insulating pull rod and the first insulating tube by the solid sealing body 23, respectively, thereby reducing the risk of local discharge through the insulating effect of the solid sealing body 23.

[0088] It should be noted that the first core puller 13 may be spaced apart from a part of the cavity wall of the cavity 10a, or may be spaced apart from the entire cavity wall of the cavity 10a. The second core puller 14 may be spaced apart from a part of the cavity wall of the cavity 10a, or may be spaced apart from the entire cavity wall of the cavity 10a.

[0089] Thus, the interval between the first core pull 13 and the second core pull 14 , the interval between the first core pull 13 and the cavity wall of the cavity 10a , and the interval between the second core pull 14 and the cavity wall of the cavity 10a together form an interval space 10b for casting material to cast the solid sealing body 23 .

[0090] It should be noted that, in some embodiments, the pole may include only the first insulating cylinder and the second insulating cylinder, and in other embodiments, the pole may further include other insulating cylinders.

[0091] For example, see Fig.12 The pole also includes a third insulating tube, which is connected to the incoming line terminal 21. The sealing body 23 also has a third installation cavity 23c, which is separated from the first installation cavity 23a and the second installation cavity 23b respectively, and the third insulating tube is arranged in the third installation cavity 23c.

[0092] See 7 and Fig.12 The pole mold 10 also includes a third core pull 15, which is detachably arranged in the cavity 10a. The shape of the third core pull 15 matches the shape of the third installation cavity 23c, and the third core pull 15 is spaced apart from the first core pull 13, the second core pull 14 and at least part of the cavity wall of the cavity 10a. Therefore, by adding the third core pull 15, after the solid seal 23 is cast and formed by the pole mold 10, a third installation cavity 23c can be formed in the solid seal 23 for installing the third insulating cylinder. At the same time, since the third core pull 15 is spaced apart from the first core pull 13 and the second core pull 14, respectively, the third installation cavity 23c is also separated from the first installation cavity 23a, so that the third insulating cylinder is separated from the insulating pull rod and the first insulating cylinder by the solid seal 23, respectively, thereby reducing the risk of partial discharge through the insulating effect of the solid seal 23.

[0093] In fact, in the case where the pole also includes other insulating cylinders, all the insulating cylinders connected to the incoming terminal 21 can be placed in the first installation cavity 23a.

[0094] For example, the pole also includes a third insulating cylinder, which is connected to the incoming line terminal 21, and the second installation cavity 23b includes a first sub-cavity and a second sub-cavity that are interconnected. The second insulating cylinder is arranged in the first sub-cavity, and the third insulating cylinder is arranged in the second sub-cavity.

[0095] The second core pull 14 includes a first core pull 13 part and a second core pull 14 part connected to each other. The shape of the first core pull 13 part matches the shape of the first sub-cavity, and the shape of the second core pull 14 part matches the shape of the second sub-cavity. Therefore, the second installation cavity 23b formed by the second core pull 14 can be used to install the second insulation cylinder and the third insulation cylinder at the same time. Compared with the situation where the second insulation cylinder and the third insulation cylinder are installed in separate installation cavities, installing the second insulation cylinder and the third insulation cylinder into the second installation cavity 23b can reduce the amount of casting material used and reduce the deadweight of the pole.

[0096] It should be noted that the first sub-cavity and the second sub-cavity are not separated from each other, but are interconnected, and belong to different areas of the second installation cavity 23b respectively.

[0097] Similarly, the first core pulling portion 13 and the second core pulling portion 14 are not separated from each other, and both belong to different areas of the second core pulling portion 14 .

[0098] For some examples, see Fig.12 The first installation cavity 23a includes a third sub-cavity 23ba and a fourth sub-cavity 23bb which are interconnected. The third sub-cavity 23ba is used to install the first insulating cylinder, and the fourth sub-cavity 23bb is used to install the insulating pull rod.

[0099] See also Figure 5 The first core pulling part 13 includes a third core pulling part 131 and a fourth core pulling part 132 connected to each other, the shape of the third core pulling part 131 matches the shape of the third sub-cavity 23ba, the shape of the fourth core pulling part 132 matches the shape of the fourth sub-cavity 23bb, and the outer dimensions of the fourth core pulling part 132 are greater than the outer dimensions of the third core pulling part 131. Thus, the amount of casting material used can be further reduced.

[0100] Specifically, since the first core pulling part 13 is used to form the first installation cavity 23a, and the first installation cavity 23a is used to install the first insulating cylinder and the insulating pull rod, by increasing the outer dimensions of the fourth core pulling part 132, the size of the fourth sub-cavity 23bb for installing the insulating pull rod can be increased, and the overall size of the first installation cavity 23a can be increased, thereby reducing the amount of casting material for the solid seal 23.

[0101] For some examples, see Figures 3 to 7The pole mold 10 also includes a die assembly 16, which is detachably disposed in the cavity 10a. At least one of the vacuum arc chamber 24 and the conductive rod 25 is connected to the die assembly 16 to be positioned and installed in the cavity 10a. Thus, on the one hand, it is convenient to position and install at least one of the vacuum arc chamber 24 and the conductive rod 25 in the corresponding position in the cavity 10a. After the solid seal 23 is cast in the pole mold 10, at least one of the vacuum arc chamber 24 and the conductive rod 25 can be located in the installation position in the solid seal 23 without further assembly. On the other hand, the die assembly 16 can have a good fixing effect, which can improve the installation stability of at least one of the vacuum arc chamber 24 and the conductive rod 25 in the pole mold 10.

[0102] It should be noted that the die assembly 16 is detachably disposed in the mold cavity 10 a and can be detached after the casting of the sealing body 23 is completed.

[0103] Depending on the actual situation, only the vacuum arc chamber 24 can be connected to the die head assembly 16 to be positioned and installed in the cavity 10a, or only the conductive rod 25 can be connected to the die head assembly 16 to be positioned and installed in the cavity 10a, or both the vacuum arc chamber 24 and the conductive rod 25 can be connected to the die head assembly 16 to be positioned and installed in the cavity 10a.

[0104] It should be noted that the specific structure and location of the die assembly 16 need to be set according to actual conditions.

[0105] For example, see Figure 3 , Figure 7 and Fig. 9 The die assembly 16 includes a first die 161, which is connected to the conductive rod 25. The first die 161 is arranged on the first core puller 13 to position the conductive rod 25. Thus, the conductive rod 25 can be easily positioned and installed at a set position in the cavity 10a, and can also play a role in fixing the conductive rod 25.

[0106] In fact, the first die head 161 and the conductive rod 25 are detachably connected, so that the first die head 161 can be easily detached from the conductive rod 25 after the casting of the solid sealing body 23 is completed.

[0107] The manner of detachable connection between the first die head 161 and the conductive rod 25 is not limited.

[0108] For example, see Fig. 9 and Fig.10 The pole includes a first connecting piece, and one end of the conductive rod 25 close to the vacuum arc extinguishing chamber 24 has a first connecting hole 25a, and the first connecting hole 25a is used to connect with the vacuum arc extinguishing chamber 24 through the first connecting piece after the solid sealing body 23 is cast.

[0109] The pole mold 10 includes a second connector. The first die head 161 has a second connection hole 161 a. When the first die head 161 is mounted on the conductive rod 25 , the second connection hole 161 a is correspondingly connected to the first connection hole 25 a and connected through the second connector.

[0110] Specifically, after the pole is formed, the conductive rod 25 of the pole is connected to the vacuum interrupter 24 through the first connector, thereby realizing the passage of the circuit in the pole. The connection method between the first connector and the vacuum interrupter 24 is not limited.

[0111] It is understandable that the first connector is an electrical connector, and its specific material is not limited. For example, the first connector is a metal material. For another example, the first connector is a metal "soft connector". Its material is relatively soft and has a certain elasticity, which can facilitate the connection between the conductive rod 25 and the vacuum arc chamber 24.

[0112] After the pole is formed, the first connection hole 25a of the conductive rod 25 is used to connect with the first connecting member.

[0113] During the casting process of the pole mold 10, the first connection hole 25a of the conductive rod 25 is connected to the second connection hole 161a on the first die head 161, so that the second connection piece passes through the two connection holes in sequence, thereby realizing the connection between the two. That is to say, during the casting process of the pole mold 10, the first connection hole 25a of the conductive rod 25 is used to connect with the first die head 161 through the second connection piece to play a role in installation and fixing. At the same time, since the second connection piece is inserted into the first connection hole 25a of the conductive rod 25 during the casting process of the pole mold 10, it can prevent the casting material from entering the first connection hole 25a. It can avoid the problem that the first connection hole 25a cannot be connected to the first connection piece due to being blocked by the casting material after the pole is formed.

[0114] It should be noted that the specific structures of the first connection hole 25a, the second connection hole 161a and the second connection member are not limited.

[0115] For example, the first connection hole 25a and the second connection hole 161a are both threaded holes. The second connection member is a screw or a bolt.

[0116] In some embodiments, the second connection hole 161 a is a through hole that penetrates the first die head 161 , and the first connection hole 25 a is open only at one side close to the second connection hole 161 a .

[0117] From the side of the second connecting hole 161 a facing away from the first connecting hole 25 a , the second connecting member passes through the second connecting hole 161 a and the first connecting hole 25 a in sequence.

[0118] The side of the first die head 161 facing away from the first connecting hole 25a is in contact with the second core puller 14. Thus, the risk of the casting material entering the first connecting hole 25a can be further reduced.

[0119] Specifically, only one side of the first connection hole 25a close to the second connection hole 161a is open, while the other sides are closed, so as to prevent the casting material from entering the first connection hole 25a from the other sides of the first connection hole 25a.

[0120] The side of the first connecting hole 25a close to the second connecting hole 161a is connected to the second connecting hole 161a, and on the side of the second connecting hole 161a away from the first connecting hole 25a, the outer surface of the first die head 161 is in contact with the second core pull 14. Therefore, under the blocking of the second core pull 14, the risk of the casting material entering the first connecting hole 25a can be further reduced.

[0121] For some examples, see Fig. 9 and Fig.10 The conductive rod 25 includes a rod body 251 and a connecting portion 252. The end of the rod body 251 close to the first core puller 13 is connected to the connecting portion 252. The first die head 161 is connected to the connecting portion 252. A part of the connecting portion 252 extends along the radial direction of the rod body 251 to form a positioning protrusion 253. Thus, a uniform electric field can be achieved.

[0122] A part of the first die head 161 near the positioning protrusion 253 is recessed to form a first positioning groove 161b for positioning and installing the positioning protrusion 253. Thus, the conductive rod 25 can be easily installed and positioned on the first die head 161, and the two can be easily connected.

[0123] It should be noted that the radial cross-sectional dimension of the positioning protrusion 253 along the rod body 251 is larger than the cross-sectional dimension of the rod body 251, thereby preventing the end of the rod body 251 from being too sharp and causing the problem of tip discharge, and making the electric field more uniform.

[0124] The area where the first die head 161 fits the positioning protrusion 253 is recessed, thereby forming a first positioning groove 161 b, which can facilitate the positioning of the positioning protrusion 253 in the first positioning groove 161 b, and further facilitate the installation and positioning of the conductive rod 25 on the first die head 161 .

[0125] It should be noted that the shape of the first positioning groove 161b can be set according to actual conditions.

[0126] For example, see Fig. 9 and Fig.10The size of the first positioning groove 161b matches the outer dimensions of the positioning protrusion 253. In other words, the first positioning groove 161b adopts the same shape and size as the positioning protrusion 253, thereby further improving the installation stability of the positioning protrusion 253 in the first positioning groove 161b.

[0127] For another example, the first positioning groove 161b is a semicircular groove, which is convenient for processing and manufacturing.

[0128] For some examples, see Figure 8 , a part of the first core puller 13 near the first die head 161 is recessed to form a second positioning groove 13a, and at least a part of the first die head 161 is disposed in the second positioning groove 13a. Thus, the first die head 161 can be positioned and installed on the first core puller 13, and the conductive rod 25 can be positioned and matched with the first core puller 13.

[0129] It should be noted that, the first die head 161 may be disposed in the second positioning groove 13 a only partially or in its entirety.

[0130] For some examples, see Figure 8 , toward the side away from the vacuum interrupter 24, the outer dimensions of the area where the first die head 161 at least extends into the second positioning groove 13a gradually decrease.

[0131] Therefore, on the one hand, it is convenient to install the first die head 161 into the second positioning groove 13 a , and on the other hand, it is helpful to remove the first die head 161 from the sealing body 23 without interfering with the first die head 161 on the conductive rod 25 .

[0132] In some embodiments, the die assembly 16 includes a fifth die 165, which is connected to one end of the vacuum arc chamber 24 close to the first core puller 13, and the fifth die 165 is arranged on the first core puller 13 to position and install the vacuum arc chamber 24 in the cavity 10a.

[0133] That is, the fifth die head 165 is used to install the vacuum interrupter 24 on the first core pulling 13, so as to position and install the vacuum interrupter 24 at a set position in the cavity 10a.

[0134] For some examples, see Figure 8 The first core puller 13 is partially recessed near the vacuum interrupter 24 to form a third positioning groove 13b, and at least a portion of the fifth die head 165 is disposed in the third positioning groove 13b. Thus, the fifth die head 165 can be conveniently positioned and installed on the first core puller 13, and the vacuum interrupter 24 can be conveniently positioned and matched with the first core puller 13.

[0135] It should be noted that, the fifth die head 165 may be disposed in the third positioning groove 13b only partially or in its entirety.

[0136] For some examples, see Figure 3 The die assembly 16 includes a sixth die 166, which is connected to the end of the vacuum interrupter 24 away from the first core puller 13, and is disposed on the cavity wall of the cavity 10a to position and install the vacuum interrupter 24 in the cavity 10a. In other words, the end of the vacuum interrupter 24 away from the first core puller 13 is installed through the sixth die 166, thereby realizing the positioning and installation of the vacuum interrupter 24 at a set position in the cavity 10a.

[0137] For some examples, see Figure 7 The pole includes a first connection cap electrically connected to the inlet terminal 21, and the first connection cap is used to connect to the second insulating cylinder after the solid seal 23 is cast and formed. The die assembly 16 includes a third die 163, one end of the third die 163 is detachably connected to the first connection cap, and the other end of the third die 163 is detachably connected to the second core puller 14. In this way, the first connection cap can be easily positioned and installed in the pole mold 10.

[0138] Specifically, before pouring, the first connection cap needs to be installed on the second core pull 14, and the first connection cap on the second core pull 14 needs to be connected to the incoming line terminal 21. After pouring is completed and the core pull is pulled out, the first connection cap needs to be connected to the second insulating tube.

[0139] Before pouring, the first connecting cap is installed on the second core puller 14 through the third die head 163. After the pouring is completed, the third die head 163 can be detached.

[0140] In some embodiments, the pole includes a second connection cap electrically connected to the conductive rod 25, and the second connection cap is used to connect to the first insulating cylinder after the solid seal 23 is cast and formed. The die assembly 16 includes a fourth die, one end of the fourth die is detachably connected to the second connection cap, and the other end of the fourth die is detachably connected to the first core puller 13. Thus, it is convenient to position and install the second connection cap in the pole mold 10.

[0141] Specifically, before pouring, the second connection cap needs to be installed on the first core pull 13, and the second connection cap on the first core pull 13 needs to be connected to the outlet terminal 22. After the pouring is completed and the core pull is pulled out, the second connection cap needs to be connected to the first insulating tube.

[0142] Before pouring, the second connecting cap is installed on the first core puller 13 through the fourth die head, and after the pouring is completed, the fourth die head can be detached.

[0143] In some embodiments, the pole mold 10 further includes a third core puller 15, the pole further includes a third insulating tube and a third connecting cap electrically connected to the first connecting cap, and the third connecting cap is used to connect to the third insulating tube after the solid seal 23 is cast and molded. The die assembly 16 includes a seventh die, one end of the seventh die is detachably connected to the third connecting cap, and the other end of the seventh die is detachably connected to the third core puller 15. Thus, the third connecting cap can be easily positioned and installed in the pole mold 10.

[0144] In some embodiments, the pole includes at least three insulating tubes, and two of the insulating tubes can be selected to respectively set the high-voltage capacitor of the voltage sensor and the high-voltage capacitor of the power extraction device.

[0145] For some examples, see Figures 1 to 3 The die assembly 16 includes a second die 162, which is connected to one end of the conductive rod 25 away from the first core puller 13; the pole mold 10 includes a positioning structure 18, which is arranged on the fixed mold 12 and abuts against one end of the second die 162 away from the conductive rod 25 to position the conductive rod 25.

[0146] The second die head 162 is connected to an end of the conductive rod 25 away from the first core pulling 13 , that is, the positioning structure can be used to position the conductive rod 25 along the axial direction.

[0147] Here, the second die head 162 and the conductive rod 25 are detachably connected, so that the second die head 162 can be easily detached from the conductive rod 25 after the casting of the solid sealing body 23 is completed.

[0148] There is no limitation on the manner in which the second die head 162 and the conductive rod 25 are detachably connected. For example, the second die head 162 and the conductive rod 25 are threadedly connected.

[0149] In this embodiment, a second die head 162 and a positioning structure 18 are provided. The positioning structure abuts against one end of the second die head 162 away from the conductive rod 25 to position the conductive rod 25, thereby further facilitating the positioning and installation of the conductive rod 25 at a set position in the cavity 10a and fixing the conductive rod 25.

[0150] It should be noted that the specific structure of the positioning structure is not limited here.

[0151] For some examples, see Figure 3The positioning structure includes a mounting seat 181, a driving member 182 and an abutting portion 183. The mounting seat 181 is disposed on the fixed die 12, the driving member 182 is threadedly connected to the mounting seat 181, and the abutting portion 183 is disposed at one end of the driving member 182 close to the second die head 162. The driving member 182 drives the abutting portion 183 to move toward the end close to the second die head 162 to position the second die head 162.

[0152] Here, the positioning structure is arranged on the fixed mold 12 through the mounting seat 181 to achieve the installation and fixation of the positioning structure.

[0153] The driving member 182 is threadably connected to the mounting seat 181 , so that the driving member 182 can be rotated to cause the driving member 182 to be displaced relative to the mounting seat 181 .

[0154] The abutment portion 183 is disposed at one end of the driving member 182 close to the second die head 162, that is, the abutment portion 183 can abut against the second die head 162. Here, since the abutment portion requires a high structural strength, the material and structure of the abutment portion 183 can be designed according to requirements, thereby improving the reliability of the positioning structure.

[0155] In this embodiment, by rotating the driving member 182 , the driving member 182 can drive the abutting portion 183 to move toward one end close to the second die head 162 , so that the abutting portion 183 abuts against the second die head 162 , thereby positioning the second die head 162 .

[0156] For some examples, see Figures 2 to 3 The positioning structure includes a locking member 184 , which is disposed on the movable mold 11 . The locking member 184 can move toward the direction close to the second die head 162 and abut against the second die head 162 to lock and position the second die head 162 .

[0157] For example, the locking member 184 can be rotated to move toward or away from the second die head 162 .

[0158] Exemplarily, the locking member 184 moves along the closing direction of the fixed mold 12 and the movable mold 11 and abuts against the radial direction of the second die head 162, or a locking hole is provided in the radial direction of the second die head 162, and the locking member 184 is inserted into the locking hole to lock and position the second die head 162.

[0159] Here, when the abutting portion 183 is abutted in place, the locking member 184 can move toward the second die head 162 and abut against the second die head 162 to lock and position the second die head 162, so that the positioning structure 18 can better position the conductive rod 25.

[0160] For some examples, see Figures 1 to 4 The pole mold 10 includes an ejection mechanism 19, which is disposed on the fixed mold 12 and / or the movable mold 11 to eject the pole when the fixed mold 12 and the movable mold 11 are separated.

[0161] Here, the fixed mold 12 may be provided with the ejection mechanism 19, the movable mold 11 may be provided with the ejection mechanism 19, or both the fixed mold 12 and the movable mold 11 may be provided with the ejection mechanism 19.

[0162] An ejection mechanism 19 is provided on the fixed mold 12 and / or the movable mold 11 to eject the molded product when the movable mold 11 is separated from the fixed mold.

[0163] It should be noted that the specific type of the ejection mechanism 19 is not limited here.

[0164] For some examples, see Figures 1 to 4 The ejection mechanism 19 includes a first ejection mechanism 191, which is disposed on the fixed mold 12. The first ejection mechanism 191 includes a transmission shaft 1911, an eccentric wheel 1912 and a first ejection rod 1913. The eccentric wheel 1912 is fixed to the transmission shaft 1911. The transmission shaft 1911 drives the eccentric wheel 1912 to rotate to drive the first ejection rod 1913 to move toward the direction close to the movable mold 11.

[0165] The number of the first ejection mechanism 191 may be one or more.

[0166] The multiple mentioned in the embodiments of the present application refers to a number of two or more.

[0167] Exemplarily, the first ejection mechanism 191 may be a manual ejection mechanism 19 .

[0168] Exemplarily, the first ejection mechanism 191 includes a driving structure, which is disposed on the transmission shaft 1911 and is drivingly connected to the transmission shaft 1911 .

[0169] Here, the driving structure can be driven to drive the transmission shaft 1911 to rotate, and the transmission shaft 1911 drives the eccentric wheel 1912 to rotate, so that the first ejector rod 1913 can be driven to move toward the direction close to the movable mold 11. The first ejector rod 1913 can extend into the cavity 10a and eject the product.

[0170] The position where the first ejector rod 1913 abuts is not limited here. For example, the first ejector rod 1913 abuts on the sixth die head 166. The first ejector rod 1913 of the first ejector mechanism 191 moves toward the direction close to the movable mold 11 and abuts the sixth die head 166 to eject the solid sealing body 23. Here, the first ejector mechanism 191 abuts the sixth die head 166, that is, the first ejector mechanism 191 does not need to abut against the solid sealing body 23, thereby avoiding the situation where the ejector mechanism 191 damages the solid sealing body 23.

[0171] Of course, the first ejection mechanism 191 can also abut against other dies of the die assembly 16, or can abut against the conductive rod 25. That is to say, the first ejection mechanism 191 abuts against the conductive rod 25 to eject the pole out of the cavity 10a, which is beneficial for demolding.

[0172] The specific location of the first ejection mechanism 191 is not limited herein. For example, the first ejection mechanism 191 can be arranged at an end of the fixed mold 12 away from the bottom mold 17, or can be arranged in the middle area of ​​the fixed mold 12 along the height direction.

[0173] For some examples, see Figures 1 to 4 The ejection mechanism 19 includes a second ejection mechanism 192, which is arranged on the movable mold 11. The second ejection mechanism 192 includes an elastic member 1921 and a second ejection rod 1922. During the process of closing the movable mold 11 and the fixed mold 12, the elastic member 1921 is squeezed and elastically deformed. During the demolding process, the elastic member 1921 restores the elastic deformation to drive the second ejection rod 1922 to move toward the direction close to the fixed mold 12.

[0174] The number of the second ejection mechanism 192 may be one or more.

[0175] Exemplarily, the second ejection mechanism 192 may be an automatic ejection mechanism 19 .

[0176] Exemplarily, the elastic member 1921 may be a spring.

[0177] During the closing process of the movable mold 11 and the fixed mold 12, the second ejector rod 1922 squeezes the elastic member 1921 to put it in a compressed state and accumulate elastic force. After the solid seal 23 in the molding cavity 10a is formed, during the demolding process, the second ejector rod 1922 in the movable mold 11 cavity moves toward the fixed mold 12 after the elastic member 1921 releases the elastic force, thereby ejecting the formed solid seal 23 from the movable mold 11 cavity, which facilitates the demolding of the solid seal 23 from the movable mold 11 cavity.

[0178] The position where the second ejector rod 1922 abuts is not limited here. For example, the second ejector rod 1922 abuts on the sixth die head 166. The second ejector rod 1922 of the second ejector mechanism 192 moves toward the direction close to the fixed mold 12 and abuts the sixth die head 166 to eject the solid sealing body 23 out of the cavity of the movable mold 11. Here, the second ejector mechanism 192 abuts against the sixth die head 166, that is, the second ejector mechanism 192 does not need to abut against the solid sealing body 23, thereby avoiding the situation where the ejector mechanism 19 damages the solid sealing body 23.

[0179] Of course, the second ejection mechanism 192 can also abut against other dies of the die assembly 16, or can abut against the conductive rod 25. That is to say, the second ejection mechanism 192 abuts against the conductive rod 25 to eject the pole out of the cavity 10a, which is beneficial for demolding.

[0180] The specific location of the second ejection mechanism 192 is not limited herein. For example, the second ejection mechanism 192 can be arranged at an end of the fixed mold 12 away from the bottom mold 17, or can be arranged in the middle area of ​​the fixed mold 12 along the height direction.

[0181] Exemplarily, the arrangement position of the second ejection mechanism 192 corresponds to the arrangement position of the first ejection mechanism 191 , that is, the second ejection mechanism 192 is arranged opposite to the first ejection mechanism 191 .

[0182] In some embodiments, the pole mold 10 includes at least one temperature sensor. Here, the temperature sensor is used to detect the temperature of the pole mold 10.

[0183] It should be noted that the specific location of the temperature sensor is not limited here.

[0184] For example, see Figure 2 The temperature sensor is arranged on the fixed mold 12. The fixed mold 12 includes a first molding plate 121 and a first back plate 122. The first molding plate 121, the movable mold 11 and the bottom mold 17 are arranged to form a cavity 10a. The first back plate 122 is connected to the side of the first molding plate 121 away from the movable mold 11. The first molding plate 121 is provided with a first mounting groove for mounting the temperature sensor. A first wiring groove connected to the first mounting groove is formed between the first back plate 122 and the first molding plate 121. The first wiring groove is used to accommodate the wiring of the temperature sensor.

[0185] The first molding plate 121 and the first back plate 122 may be connected by bolts.

[0186] Here, the number of the first installation grooves may be one or more.

[0187] When there are multiple first installation slots, there are also multiple temperature sensors. In this case, the first wiring groove is connected to all the first installation slots, so that all the temperature sensors arranged in the first installation slots can be routed through the first wiring groove.

[0188] Exemplarily, the specific shape of the first wiring trough is not limited here, and the first wiring trough can be in the shape of an “I”.

[0189] Exemplarily, one end of the first wiring groove has an opening 111b communicating with the outside, and the wiring harness of the temperature sensor can be connected to the outside through the opening 111b.

[0190] For some examples, see Figure 2 The movable mold 11 includes a second molding plate 111 and a second back plate 112. The second molding plate 111, the fixed mold 12 and the bottom mold 17 are arranged to form a cavity 10a. The second back plate 112 is connected to the side of the second molding plate 111 away from the fixed mold 12. The second molding plate 111 is provided with a second mounting groove for installing a temperature sensor. A second wiring groove 111a connected to the second mounting groove is formed between the second back plate 112 and the second molding plate 111. The second wiring groove 111a is used to accommodate the wiring of the temperature sensor.

[0191] The second forming plate 111 and the second back plate 112 may be connected by bolts.

[0192] Here, the number of the second installation slots may be one or more.

[0193] When there are multiple second installation slots, there are also multiple temperature sensors. In this case, the second wiring groove 111a is connected to all the second installation slots, so that all the temperature sensors arranged in the second installation slots can be routed through the second wiring groove 111a.

[0194] Exemplarily, the specific shape of the second wiring groove 111 a is not limited here, and the second wiring groove 111 a may be in an “I” shape.

[0195] Exemplarily, one end of the second wiring groove 111 a has an opening 111 b communicating with the outside, and the wiring harness of the temperature sensor can be connected to the outside through the opening 111 b.

[0196] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0197] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A pole mold for forming a pole, characterized in that: The pole mold comprises: Bottom mold; A fixed mold and a movable mold, wherein the fixed mold and the movable mold are arranged on the bottom mold, the fixed mold, the movable mold and the bottom mold are detachably connected, and the fixed mold, the movable mold and the bottom mold are surrounded to form at least two cavities, and the cavities match the shape of the pole; The pole comprises a sealing body, an insulating rod, a vacuum interrupter, a conductive rod and a first insulating cylinder, wherein the first insulating cylinder is electrically connected to the conductive rod, the sealing body has a first mounting cavity, the insulating rod is connected to one end of the vacuum interrupter electrically connected to the conductive rod, and the insulating rod and the first insulating cylinder are arranged in the first mounting cavity; The pole mold includes a first core puller, which is detachably arranged in the cavity, and the first core puller positions the conductive rod, and the shape of the first core puller matches the shape of the first installation cavity, and the first core puller and the conductive rod are spaced from at least a part of the cavity wall of the cavity to form at least a part of the spacing space, and the spacing space is used for casting and molding the solid seal body; The pole mold includes a die assembly having a first die, wherein the first die is connected to the conductive rod, and the first die is arranged at the first core puller to position the conductive rod.

2. The pole mold according to claim 1, characterized in that: The number of the cavities is two, and the two cavities are symmetrically arranged with respect to a reference plane. The closing direction of the fixed mold and the movable mold and the height direction of the pole mold are both parallel to the reference plane.

3. The pole mold according to claim 1, characterized in that: The pole comprises a vacuum interrupter and a first connecting piece, and the end of the conductive rod close to the vacuum interrupter has a first connecting hole, and the first connecting hole is used to connect with the vacuum interrupter through the first connecting piece after the solid sealing body is cast and formed; The pole mold includes a second connecting piece, and the first die head has a second connecting hole. When the first die head is installed on the conductive rod, the second connecting hole is correspondingly connected to the first connecting hole and is connected through the second connecting piece.

4. The pole mold according to claim 3, characterized in that: The second connection hole is a through hole that passes through the first die head, and the first connection hole is open only on one side close to the second connection hole; From the side of the second connecting hole away from the first connecting hole, the second connecting member is sequentially penetrated through the second connecting hole and the first connecting hole, and the side of the first die head away from the first connecting hole is fitted with the first core pulling.

5. The pole mold according to claim 1, characterized in that: The conductive rod comprises a rod body and a connecting portion, wherein one end of the rod body close to the first core pulling device is connected to the connecting portion, the first die head is connected to the connecting portion, and a partial area of ​​the connecting portion extends along the radial direction of the rod body to form a positioning protrusion; A partial area of ​​one side of the first die head close to the positioning protrusion is recessed to form a first positioning groove for positioning and installing the positioning protrusion.

6. The pole mold according to claim 1, characterized in that: A partial area of ​​the first core puller on a side close to the first die head is recessed to form a second positioning groove, and at least a partial area of ​​the first die head is arranged in the second positioning groove.

7. The pole mold according to claim 6, characterized in that: The pole comprises a vacuum arc extinguishing chamber, and the conductive rod is connected to the vacuum arc extinguishing chamber; toward the side away from the vacuum arc extinguishing chamber, the outer dimensions of the area where the first die head at least extends into the second positioning groove gradually decrease.

8. The pole mold according to claim 1, characterized in that: The die assembly includes a second die, which is connected to one end of the conductive rod away from the first core pulling; the pole mold includes a positioning structure, which is arranged on the fixed mold and abuts against one end of the second die away from the conductive rod to position the conductive rod.

9. The pole mold according to claim 8, characterized in that: The positioning structure comprises a mounting seat, a driving member and an abutment portion, wherein the mounting seat is arranged on the fixed die, the driving member is threadedly connected to the mounting seat, and the abutment portion is arranged at one end of the driving member close to the second die head; The driving member drives the abutting portion to move toward an end close to the second die head to position the second die head.

10. The pole mold according to claim 9, characterized in that: The positioning structure includes a locking member, which is arranged on the movable die. The locking member can move toward the direction close to the second die head and abut against the second die head to lock and position the second die head.

11. The pole mold according to claim 3, characterized in that: The pole comprises an inlet end and a second insulating tube, the second insulating tube is connected to the inlet end, the sealing body comprises a second mounting cavity separated from the first mounting cavity, and the second insulating tube is arranged in the second mounting cavity; The pole mold includes a second core puller, which is detachably arranged in the cavity. The shape of the second core puller matches the shape of the second installation cavity, and the second core puller is respectively spaced apart from the first core puller and at least a partial area of ​​the cavity wall of the cavity.

12. The pole mold according to claim 11, characterized in that: The pole comprises a first connection cap electrically connected to the incoming line end, the first connection cap is used to connect to the second insulating tube after the solid seal is cast; the die assembly comprises a third die, one end of the third die is detachably connected to the first connection cap, and the other end of the third die is detachably connected to the second core puller; and / or, The pole includes a second connecting cap electrically connected to the conductive rod, and the second connecting cap is used to connect to the first insulating tube after the solid sealing body is cast; the die assembly includes a fourth die, one end of the fourth die is detachably connected to the second connecting cap, and the other end of the fourth die is detachably connected to the first core pulling.

13. The pole mold according to any one of claims 1 to 12, characterized in that: The pole mold comprises an ejection mechanism, and the ejection mechanism is arranged on the fixed mold and / or the movable mold to eject the pole when the fixed mold and the movable mold are separated.

14. The pole mold according to claim 13, characterized in that: The ejection mechanism includes a first ejection mechanism, which is arranged on the fixed mold. The first ejection mechanism includes a transmission shaft, an eccentric wheel and a first ejection rod. The eccentric wheel is fixed to the transmission shaft. The transmission shaft drives the eccentric wheel to rotate to drive the first ejection rod to move toward the movable mold.

15. The pole mold according to claim 13, characterized in that: The ejection mechanism includes a second ejection mechanism, which is arranged on the movable mold, and includes an elastic member and a second ejection rod; during the process of clamping the movable mold and the fixed mold, the elastic member is squeezed and elastically deformed, and during the demolding process, the elastic member restores the elastic deformation to drive the second ejection rod to move in a direction close to the fixed mold.

16. The pole mold according to any one of claims 1 to 12, characterized in that: The pole mold includes at least one temperature sensor; The fixed mold includes a first molding plate and a first back plate, the first molding plate, the movable mold and the bottom mold are arranged to form the mold cavity, the first back plate is connected to the side of the first molding plate away from the movable mold; the first molding plate is provided with a first mounting groove for mounting the temperature sensor, a first wiring groove connected to the first mounting groove is formed between the first back plate and the first molding plate, and the first wiring groove is used to accommodate the wiring of the temperature sensor; and / or, The movable mold includes a second molding plate and a second back plate, the second molding plate, the fixed mold and the bottom mold are arranged to form the mold cavity, the second back plate is connected to the side of the second molding plate away from the fixed mold; the second molding plate is provided with a second mounting groove for installing the temperature sensor, and a second wiring groove connected to the second mounting groove is formed between the second back plate and the second molding plate, and the second wiring groove is used to accommodate the wiring of the temperature sensor.

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