Method for manufacturing electrical element, and electrical element

Abstract

The invention provides a manufacturing method of an electrical element and the electrical element, and relates to the field of electrical element manufacturing. According to the manufacturing method provided by the invention, the plurality of shell parts form the shell by curing the fluid plastic, and the shell and the conductor form the combined structure, compared with the prior art, according to the manufacturing method provided by the embodiment of the invention, the tedious process based on dispensing, combining and assembling the shell in the prior art is omitted, and the manufacturing process is simplified. Moreover, according to the manufacturing method provided by the embodiment of the invention, the sealing performance of the shell can be improved, a large amount of time can be saved, and the problem that glue overflows on the surface of the shell after glue dispensing can be avoided.

Description

Technical Field

[0001] The present application relates to the field of electrical component manufacturing, and in particular to a method for manufacturing an electrical component and an electrical component. Background Art

[0002] Among the existing electrical components, there are tube-shell devices such as fuses, which have a hollow tube shell and a conductor that penetrates the tube shell. Therefore, the manufacturing process of such electrical components often involves the following process flows: conductor preparation, shell preparation, shell glue dispensing, shell assembly, cleaning and fixing, gap glue dispensing, surface cleaning, resistance measurement, and baking and curing.

[0003] For fuses, the process also involves sand filling, sand hole glue dispensing, clamp pressing, clamp closing, appearance cleaning and product testing. Therefore, the entire product production and assembly process is relatively cumbersome, and there are problems such as low yield rate, high manufacturing cost and expensive automated production line cost in the production and assembly process.

[0004] The key link that leads to the above problems lies in the preparation of the shell of tube-shell devices. The plastic shell of tube-shell devices is usually made of two parts, the upper shell and the lower shell, which are injection-molded separately. Glue is needed to bond the shell. However, due to the influence of position and other factors during the glue dispensing process, it is difficult to maintain good stability in the uniformity and consistency of glue dispensing.

[0005] Once the shell is not firmly bonded or there is a shell gap, it is difficult to ensure the electrical insulation performance of the tube-shell device, and in serious cases, the circuit where the tube-shell device is located will be damaged. In addition, during multiple dispensing processes, excess glue seeps out of the product appearance, requiring additional cleaning steps, and the residual glue on the exposed conductors at both ends of the tube shell has a certain probability of affecting the performance of the product, which has many disadvantages. Summary of the invention

[0006] In view of this, the present invention provides a method for manufacturing an electrical component and an electrical component, aiming to solve the above technical problems to a certain extent.

[0007] A first aspect of the present application provides a method for manufacturing an electrical component, wherein the electrical component comprises a housing and a conductor passing through the housing, and the manufacturing method comprises:

[0008] A step of preparing materials and closing the mold is performed in the mold, wherein the mold is closed to injection mold a plurality of shell parts;

[0009] a transfer step, transferring the plurality of shells and the conductor to a processing position, combining the plurality of shells, and passing the conductor through the combined plurality of shells;

[0010] An assembly and mold closing step, in which the mold is closed, fluid plastic is injected between adjacent shell parts, and the fluid plastic is injected between the conductor and the shell part adjacent to the conductor, and the fluid plastic is solidified to form the shell and a combined structure of the shell and the conductor;

[0011] Wherein, when the assembly mold closing step is performed, the material preparation mold closing step is synchronously performed in the mold for the next electrical component to form the multiple shell parts of the next electrical component;

[0012] Wherein, after the assembly mold closing step, the transfer step and the assembly mold closing step are sequentially performed for the next electrical component to form the combined structure of the next electrical component.

[0013] Preferably, the material preparation and mold closing step further includes placing the conductor in a waiting-for-operation position in the mold, and the transfer step further includes transferring the conductor from the waiting-for-operation position to the processing position.

[0014] Preferably, the material preparation and mold closing step further comprises: respectively molding the plurality of shell parts at different positions, wherein at least two of the plurality of shell parts are staggered in the extension direction of the shell body.

[0015] Preferably, the assembling and closing mold step further comprises:

[0016] The fluid plastic is also located and solidified on an outer side of at least one of the adjacent shell portions.

[0017] Preferably, the step of preparing materials and closing the mold further comprises:

[0018] A recessed receiving portion is formed on an outer side of at least one of the plurality of shell portions, wherein the receiving portion is configured to receive the fluid plastic.

[0019] Preferably, the step of preparing materials and closing the mold further comprises:

[0020] The receiving portion is formed on an outer side of each of the shell portions, wherein the adjacent shell portions are configured such that the receiving portions respectively located on the adjacent shell portions are engaged with each other to provide a space for receiving the fluid plastic.

[0021] Preferably, the step of preparing materials and closing the mold further comprises:

[0022] The shell portion having the accommodating portion is constructed so that the accommodating portion has a first portion opened from an edge portion of the shell portion configured to connect adjacent shell portions, and the accommodating portion has a second portion connected to the first portion and located on a side of the first portion away from the edge portion, the second portion has a first width at a first position and a second width at a second position, the first width is smaller than the second width, and the first position is closer to the first portion than the second position.

[0023] Preferably, the step of preparing materials and closing the mold further comprises:

[0024] The shell portion formed with the accommodation portion is constructed so that the width of the second portion gradually increases from the side where the first portion is located to the side away from the first portion.

[0025] Preferably, the step of preparing materials and closing the mold further comprises:

[0026] The shell portion formed with the accommodation portion is constructed so that the width of the second portion has at least one sudden change from the side where the first portion is located to the side away from the first portion.

[0027] Preferably, the step of preparing materials and closing the mold further comprises:

[0028] The housing portion formed with the accommodation portion is configured so that the accommodation portion has a plurality of the first portions spaced apart along the edge portion, and so that the accommodation portion has a plurality of the second portions, and so that each of the second portions communicates with the corresponding first portion.

[0029] Preferably, the step of preparing materials and closing the mold further comprises:

[0030] The shell portion in which the accommodation portion is formed is configured such that an inner side portion of the shell portion in which the accommodation portion is formed is formed with a convex portion corresponding in position to the accommodation portion.

[0031] Preferably, the step of preparing materials and closing the mold further comprises:

[0032] A plurality of the accommodation portions are formed on the outer side of each shell portion, and the shell portion formed with the accommodation portions is constructed so that the shell portion formed with the accommodation portions is formed with a convex portion provided corresponding to each of the accommodation portions, and adjacent convex portions are connected.

[0033] Preferably, the step of preparing materials and closing the mold further comprises:

[0034] forming a recessed filling portion on an edge portion of the shell portion configured to connect adjacent shell portions;

[0035] wherein the adjacent shell parts are constructed so that the filling parts respectively located on the adjacent shell parts are engaged with each other to provide a space for accommodating the fluid plastic;

[0036] Wherein, on the shell portion having the receiving portion, the filling portion is communicated with the receiving portion, and the fluid plastic is configured to be injected from the receiving portion into the filling portion.

[0037] Preferably, the step of preparing materials and closing the mold further comprises:

[0038] A recessed filling portion is formed on an edge portion of the shell portion configured to connect adjacent shell portions, and the filling portion is further configured to be open from an outer side of the shell portion;

[0039] The adjacent shell parts are constructed so that the filling parts respectively located on the adjacent shell parts are engaged with each other to provide a space for accommodating the fluid plastic.

[0040] Preferably, the step of preparing materials and closing the mold further comprises:

[0041] Constructing adjacent shell portions so that a joint formed by the adjacent shell portions has a redirected extension section located on the side where the interior space of the shell is located;

[0042] The direction-changing extension section extends from the filling portion and stops extending to the inner space of the shell, and changes the extension direction at least once.

[0043] Preferably, the step of preparing materials and closing the mold further comprises:

[0044] A protruding positioning portion is formed on the inner side of the shell portion, and a portion of the positioning portion that exceeds the shell portion is configured to connect adjacent shell portions;

[0045] A recess corresponding to the positioning portion is formed at an inner side of a shell portion adjacent to the shell portion where the positioning portion is located, wherein the recess is configured to receive the positioning portion when the plurality of shell portions are combined.

[0046] Preferably, the step of preparing materials and closing the mold further comprises:

[0047] A protruding structure is formed on the inner side of the shell, and the shell is constructed such that the shell is formed with a reinforcing structure connecting the protruding structure and the inner side of the shell.

[0048] Preferably, the assembling and closing mold step further comprises:

[0049] The conductor is constructed so that the conductor has a through hole connecting two sides of the conductor, and the fluid plastic is also injected into the through hole to connect the solidified fluid plastics respectively located on two sides of the conductor after solidification;

[0050] Wherein, the two sides of the conductor face the two shell parts respectively.

[0051] Preferably, the manufacturing method further comprises testing and processing steps for the combined structure:

[0052] testing the resistance of the conductor of the combined structure;

[0053] Filling insulating particles into a shell of the combined structure and sealing the shell to form the electrical component;

[0054] The electrical components are tested for electrical properties and insulation properties.

[0055] A second aspect of the present application provides an electrical component, the electrical component comprising a housing, the housing comprising:

[0056] a plurality of shell portions, the shell portions being configured to be formed by injection molding;

[0057] A connecting member, the connecting member is located between adjacent shell parts, and is configured to connect the multiple shell parts after being combined to form the housing;

[0058] Part of the connecting member is located on the outer side of at least one of the adjacent shell parts.

[0059] Preferably, a recessed receiving portion is formed on an outer side of at least one of the plurality of shell portions, wherein the receiving portion is configured to receive the portion of the connecting member.

[0060] Preferably, the accommodating portion is formed on the outer side of each of the shell parts, and the adjacent shell parts are configured so that the accommodating portions respectively located on the adjacent shell parts can engage with each other to provide a space for accommodating the part of the connecting member.

[0061] Preferably, the accommodating portion has a first portion opened from an edge portion of the shell portion configured to connect adjacent shell portions, the accommodating portion has a second portion connected to the first portion and located on a side of the first portion away from the edge portion, the second portion has a first width at a first position and a second width at a second position, the first width is smaller than the second width, and the first position is closer to the first portion than the second position.

[0062] Preferably, the width of the second portion gradually increases from the side where the first portion is located to the side away from the first portion.

[0063] Preferably, the width of the second portion has at least one sudden change from the side where the first portion is located to the side away from the first portion.

[0064] Preferably, the accommodation portion has a plurality of the first portions spaced apart along the edge portion, and the accommodation portion has a plurality of the second portions, each of the second portions being in communication with the corresponding first portion.

[0065] Preferably, the inner side of the shell has a convex portion corresponding to the accommodating portion in position, and the convex portion protrudes from the inner side of the shell toward a direction away from the inner side of the shell.

[0066] Preferably, a plurality of the accommodating portions are formed on the outer side of each of the shell portions, and the inner side of the shell is formed with convex portions corresponding one-to-one to the accommodating portions formed by the shell, and adjacent convex portions are connected to each other.

[0067] Preferably, the adjacent shell parts are configured so that the joint formed by the adjacent shell parts has a direction-changing extension section located on the side where the inner space of the shell is located;

[0068] The shell portion is configured to form a concave filling portion on the edge portion connecting the adjacent shell portions, and the direction-changing extension section extends from the filling portion to the inner space of the shell and stops extending, and changes the extension direction at least once;

[0069] One of the adjacent shell portions is formed with a step portion protruding from an inner side portion of the shell portion, the step portion being connected to an edge portion of the one of the adjacent shell portions configured to be connected to the other of the adjacent shell portions to form a step surface;

[0070] wherein the inner side portion of the other one of the adjacent shell portions is engaged with the stepped surface to form the direction-changing extension section;

[0071] Wherein, the stepped portion is formed on the convex portion.

[0072] Preferably, the shell portion is configured to have a recessed filling portion formed on an edge portion connecting adjacent shell portions;

[0073] The adjacent shell parts are configured such that the filling parts respectively located on the adjacent shell parts are engaged with each other to provide a space for accommodating the connecting member.

[0074] Preferably, a recessed receiving portion is formed on an outer side of at least one of the plurality of shell portions, wherein the receiving portion is configured to receive the portion of the connecting member;

[0075] Wherein, adjacent shell parts are configured so that the receiving part on the same shell part is communicated with the filling part.

[0076] Preferably, the adjacent shell parts are configured so that the joint formed by the adjacent shell parts has a direction-changing extension section located on the side where the inner space of the shell is located;

[0077] The direction-changing extension section extends from the filling portion and stops extending to the inner space of the shell, and changes the extension direction at least once.

[0078] Preferably, one of the adjacent shell portions is formed with a step portion protruding from an inner side portion of the shell portion, the step portion being connected to an edge portion of the one of the adjacent shell portions configured to be connected to the other of the adjacent shell portions to form a step surface;

[0079] Wherein, an edge portion of the other one of the adjacent shell portions, which is configured to be connected to the one of the adjacent shell portions, is engaged with the stepped surface to form the direction-changing extension section.

[0080] Preferably, a protruding positioning portion is formed on the inner side of the shell portion, and the positioning portion exceeds the shell portion and is configured to connect adjacent shell portions;

[0081] A recess corresponding to the positioning portion is formed on the inner side of the shell portion adjacent to the shell portion where the positioning portion is located, wherein the recess is configured to allow the positioning portion to be inserted when the plurality of shell portions are combined.

[0082] Preferably, one of the adjacent shell portions is formed with a step portion protruding from an inner side portion of the shell portion, the step portion being connected to an edge portion of the one of the adjacent shell portions configured to be connected to the other of the adjacent shell portions to form a step surface;

[0083] wherein an edge portion of the other of the adjacent shell portions configured to be connected to the one of the adjacent shell portions is engaged with the stepped surface to form a seam, and the seam has a direction-changing extension section that changes the primary extension direction;

[0084] Wherein, the recessed portion is formed in the stepped portion.

[0085] Preferably, a protruding structure is formed on the inner side of the shell, the protruding structure has the concave portion, and the shell has a reinforcing structure connecting the protruding structure and the inner side of the shell.

[0086] Preferably, the electrical component further comprises a conductor, and the conductor passes through the housing;

[0087] Wherein, the connecting member is also located between the conductor and the shell portion to connect the shell portion and the conductor;

[0088] The conductor has a through hole connecting two sides of the conductor, and a portion of the connecting member is inserted into the through hole to connect portions of the connecting member respectively located on two sides of the conductor;

[0089] Wherein, the two sides of the conductor face the two shell parts respectively.

[0090] According to the manufacturing method provided by the present application, the above-mentioned multiple shell parts are formed into a shell by solidifying fluid plastic, and the shell and the conductor are formed into a combined structure. Compared with the prior art, the manufacturing method provided by the embodiment of the present application omits the cumbersome assembly process based on glue dispensing on the shell in the prior art, simplifying the manufacturing process. In addition, the manufacturing method provided by the embodiment of the present application is conducive to improving the sealing performance of the shell, saving a lot of time, and avoiding the problem of overflowing colloid on the surface of the shell after glue dispensing.

[0091] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0093] Figure 1 A schematic diagram showing a flow chart for manufacturing a single electrical component in a method for manufacturing an electrical component provided in an embodiment of the present application is shown.

[0094] Figure 2 A schematic diagram showing a flow chart of a continuous manufacturing process of a method for manufacturing an electrical component provided in an embodiment of the present application.

[0095] Figure 3 A schematic diagram of a three-dimensional diagram of a fuse provided according to an embodiment of the present application is shown.

[0096] Figure 4 A schematic diagram of a three-dimensional diagram of a partial structure of a fuse provided according to an embodiment of the present application is shown.

[0097] Figure 5 A schematic diagram of a three-dimensional diagram of a partial structure of another fuse provided according to an embodiment of the present application is shown.

[0098] Figure 6 Shows Figure 3 Schematic diagram of a partial view of a fuse.

[0099] Figure 7 A schematic diagram of a cross-sectional view of yet another fuse provided according to an embodiment of the present application is shown.

[0100] Figure 8 A schematic diagram of a three-dimensional diagram of a shell portion of yet another fuse provided according to an embodiment of the present application is shown.

[0101] Fig. 9 A schematic diagram of a three-dimensional diagram of yet another shell of yet another fuse provided according to an embodiment of the present application is shown.

[0102] Fig.10 A schematic diagram of a three-dimensional diagram of a partial structure of yet another fuse provided according to an embodiment of the present application is shown.

[0103] Fig.11 Shows Figure 8 Schematic diagram of a partial view of a fuse.

[0104] Fig.12 A schematic diagram of a cross-sectional view of yet another fuse provided according to an embodiment of the present application is shown.

[0105] Fig.13 Shows Figure 1 Schematic diagram of a cross-section of a fuse.

[0106] Fig.14 Shows Fig.11 Schematic diagram of a partial view of a fuse.

[0107] Fig.15 Shows Figure 1 Schematic diagram of the three-dimensional shell of the fuse.

[0108] Fig.16 Shows Figure 1 Another three-dimensional schematic diagram of the shell of the fuse.

[0109] Reference numerals:

[0110] 10-shell; 12-shell; 14-accommodating portion; 16-first portion; 18-second portion; 20-convex portion; 22-filling portion; 24-seam; 26-direction extension section; 28-step portion; 30-edge portion; 32-positioning portion; 34-recessed portion; 36-reinforcement structure; 38-connecting member; 40-conductor; 42-through hole; 44-vibrating sand hole; 46-protruding structure. DETAILED DESCRIPTION

[0111] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0112] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0113] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0114] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0115] According to a first aspect of an embodiment of the present application, a method for manufacturing an electrical component is provided. Figures 1 to 16 The steps of the method for manufacturing an electric component are described in detail.

[0116] According to a first aspect of an embodiment of the present application, a method for manufacturing an electrical component is provided. Figure 1 The electrical component includes a housing 10 and a conductor 40 passing through the housing 10, and the manufacturing method includes the following steps:

[0117] The step S110 of preparing materials and closing the mold is performed in the mold, and the mold is closed to injection mold a plurality of shell parts 12 .

[0118] In the transfer step S120 , the plurality of shells 12 and the conductor 40 are transferred to a processing position, the plurality of shells 12 are combined, and the conductor 40 is passed through the combined plurality of shells 12 .

[0119] In the assembly and mold closing step S130 , the mold is closed, fluid plastic is injected between adjacent shell portions 12 , and fluid plastic is injected between the conductor 40 and the shell portion 12 adjacent to the conductor 40 , and the fluid plastic is solidified to form the shell 10 and a combined structure of the shell 10 and the conductor 40 .

[0120] Thus, according to the manufacturing method provided in the embodiment of the present application, the above-mentioned multiple shell parts 12 are formed into a shell 10 by solidifying fluid plastic, and the shell 10 and the conductor 40 are formed into a combined structure. Compared with the prior art, the manufacturing method provided in the embodiment of the present application omits the cumbersome assembly process based on gluing the shell 10 in the prior art, thereby simplifying the manufacturing process. In addition, the manufacturing method provided in the embodiment of the present application is conducive to improving the sealing performance of the shell 10, saves a lot of time, and can also avoid the problem of overflowing colloid on the surface of the shell 10 after gluing. In the embodiment, when the assembly mold closing step is performed, the material preparation mold closing step is synchronously performed for the next electrical component in the mold to form the above-mentioned multiple shell parts 12 of the next electrical component;

[0121] In an embodiment, after the assembly and mold closing step, a transfer step and an assembly and mold closing step are sequentially performed for the next electrical component to form a combined structure of the next electrical component.

[0122] like Figure 2 As shown, then, according to the manufacturing method provided in the embodiment of the present application, for the electrical component to be produced currently, in the assembly and mold closing step, not only the combined structure of the housing 10 and the conductor 40 of the electrical component to be produced currently is manufactured in the form of injecting the fluid plastic and curing the fluid plastic, but also, while the assembly and mold closing step is being performed, the current electrical component (refer to Figure 2 The material preparation and mold closing steps are performed synchronously with the next electrical component to be produced (that is, the n+1th electrical component) to form multiple shell portions 12 of the next electrical component.

[0123] In other words, when assembling the combined structure of the current electrical component, the multiple shell parts 12 of the next electrical component have been synchronously manufactured. Subsequently, after the assembly mold closing step of the current electrical component, that is, after the material preparation mold closing step of the next electrical component, the transfer step and the assembly mold closing step are further performed for the next electrical component to produce the combined structure of the housing 10 and the conductor 40 of the next electrical component. At this time, the "next electrical component" is the "current electrical component" currently being produced, and the material preparation mold closing step is again performed synchronously with the assembly mold closing step of the electrical component, and the transfer step and the assembly mold closing step are continued after the material preparation mold closing step to produce the combined structure of the subsequent electrical components.

[0124] Therefore, according to the manufacturing method provided by the embodiment of the present application, when the assembly and mold closing step of the previous electrical component is executed, the material preparation and mold closing step is executed to form the multiple shells 12 of the next electrical component, and the transfer step and assembly and mold closing step of the next electrical component are executed accordingly. In this way, a cycle of manufacturing steps is formed.

[0125] exist Figure 2 In the example, "arrows" are used to represent the timing of step execution, which is intended to indicate that the step pointed by the "arrow" is executed after the step at the starting position of the "arrow". Figure 2 In the figure, the two steps in parallel in the horizontal direction represent that the two steps are executed synchronously, that is, the assembly and mold closing step of the nth electrical component and the material preparation and mold closing step of the n+1th electrical component are executed synchronously, that is, the assembly and mold closing step of the current electrical component and the material preparation and mold closing step of the next electrical component mentioned in the above description are executed synchronously. Figure 2 In the figure, the “dashed box” indicates that there is a mold closing operation in the step within the “dashed box”. Figure 2 It can be seen that the assembly mold closing step of the nth electrical component and the material preparation mold closing step of the n+1th electrical component share one mold closing operation.

[0126] According to the manufacturing method provided in the embodiment of the present application, on the one hand, the manufacturing method is ensured to be carried out continuously and efficiently in the above manner, that is, the production of electrical components is ensured to be continuous, thereby facilitating the efficient production of electrical components. On the other hand, according to the manufacturing method provided in the embodiment of the present application, the mold closing operation of the mold is cleverly reused to achieve high efficiency, which will be explained in detail in the following description.

[0127] According to the manufacturing method provided in the embodiment of the present application, the purpose of simplifying the production process of electrical components, more precisely, the purpose of simplifying the production process of the combined structure formed by the shell 10 and the conductor 40 of the electrical component, is to optimize the local steps and the overall process of the manufacturing method.

[0128] As mentioned in the above description of this article, the optimization of the local steps of the manufacturing method is mainly reflected in the material preparation and mold closing steps and the assembly and mold closing steps. In these two steps, the manufacturing method provided according to the embodiment of the present application does not rely on the cumbersome assembly steps based on the dispensing operation in the prior art, but forms a plurality of shell parts 12 of the shell 10 to be formed by the first mold closing of the mold in the material preparation and mold closing step. Here, the plurality of shell parts 12 are produced as components of the electrical components. Then in the assembly and mold closing step, the second mold closing is performed. In the mold, the fluid plastic is injected by injection molding to connect these shell parts 12 and the conductor 40 as a whole to form a combined structure.

[0129] Therefore, the optimization of the local steps of the manufacturing method is mainly reflected in the fact that both the material preparation and mold closing steps and the assembly and mold closing steps are significantly better than the assembly steps based on the dispensing operation, because the injection molding process has significantly higher uniformity, consistency and sealing than the dispensing operation, which can effectively maintain the stability of the product. During the process execution, the injection molding process is relative to the dispensing operation. The material (for injection molding, the material is the aforementioned fluid plastic, and for dispensing, the material is the glue itself) does not or is not easy to overflow, and does not need to be repeatedly cleaned. Therefore, there is basically no need to consider that the residual material may be left on the conductor 40 during the injection molding process, which affects the performance of the conductor 40 and even the electrical components.

[0130] Specifically, the material is affected by the injection pressure and high-temperature fluid state, and its bonding performance to the shell 12 is better than the glue bonding in the dispensing operation. The sealing inside the shell 10 of the electrical component is also better, and there is no risk of glue leakage on the product surface. Therefore, the installation and fixation of the clamp, the cleaning of the overflowed glue, and the baking and curing processes can be directly eliminated. This not only simplifies the steps required for the process, but also solves a series of product quality problems caused by the instability of manual dispensing or equipment dispensing and the unstable glue control caused by equipment fluctuations.

[0131] As mentioned in the above description of this article, the optimization of the overall process of the manufacturing method is essentially the reuse of the mold closing operation provided by the manufacturing method provided in the embodiment of the present application. As is well known, when the injection molding operation is performed, the mold is in a mold closing state, and each injection molding is performed in the mold closing state. Referring to the above description of the optimization of the local steps of the manufacturing method, the manufacturing method provided in the embodiment of the present application performs two mold closing steps in the material preparation mold closing step and the assembly mold closing step, respectively. For the same electrical component, the first mold closing corresponds to the first injection molding, which is to produce multiple shell parts 12 of the housing 10 of the electrical component, and the second mold closing corresponds to the second injection molding, which is to combine and connect these shell parts 12 and the conductor 40 into a combined structure.

[0132] In other words, for the same electrical component, the first mold closing is to produce the components of the electrical component by injection molding, and the second mold closing is to connect these components and the conductor 40 by injection molding. Therefore, compared with a simple linear production process, according to the manufacturing method provided in the embodiment of the present application, the second mold closing is always reused, that is, the mold closing in the assembly mold closing step. When the mold is closed for the second time, the first mold closing and the first injection molding of the next electrical component are synchronously performed in the mold to form multiple shells 12 of the next electrical component. Therefore, from the overall process of the manufacturing method, the mold closing process is fully utilized.

[0133] According to the manufacturing method provided in the embodiment of the present application, the material preparation and mold closing step may further include placing the conductor 40 in the waiting position for operation in the mold, and the transfer step may further include transferring the conductor 40 from the waiting position for operation to the processing position.

[0134] Thus, according to the manufacturing method provided in the embodiment of the present application, since the material preparation and mold closing step is performed for the next electrical component after the assembly and mold closing step of the currently produced electrical component, the material preparation and mold closing step for the next electrical component after the currently produced electrical component also includes, as mentioned in the above description, placing the conductor 40 of the next electrical component in the standby position in the mold, and then the conductor 40 will be transferred from the standby position to the processing position in the transfer step performed later.

[0135] The manufacturing method provided according to the embodiment of the present application will be further described below in combination with the actual production process.

[0136] In the embodiment, the electronic component may be a fuse, for example. The fuse housing 10, commonly referred to as a tube shell, may be, for example, a square, circular or elliptical structure (these shapes may be used as the cross-sectional shape of the housing 10), and the material of the tube shell includes but is not limited to a material that can realize an injection molding process. Preferably, the material of the tube shell can be a thermoplastic material with flame retardant buffering effect, for example, PA6T+GF (PA6T, nylon 6t, nylon 6T; GF, glass fiber, glass fiber, PA6T+GF is glass fiber reinforced nylon 6T, the same below), PA5T+GF (glass fiber reinforced nylon 5T, PA5T), PA10T+GF (glass fiber reinforced nylon 10T), PA66+GF (glass fiber reinforced nylon 66, PA66), PEEK+GF (glass fiber reinforced polyetheretherketone; PEEK, Polyetheretherketone, polyetheretherketone) or PPSU+GF (glass fiber reinforced polyphenylene sulfone resin; PPSU, Polyphenylene sulfone resins, polyphenylene sulfone resin) and other materials. The conductor 40 of the fuse is what is commonly called the fuse.

[0137] In the embodiment, the material of the shell 12 and the material of the fluid plastic can be the same or different.

[0138] In the embodiment, the injection molding process of forming the combined structure is substantially a one-time buried mold injection molding process. Specifically, the manufacturing method provided in the embodiment of the present application can be implemented in the following manner.

[0139] The fuse link is positioned and installed by means of a fixture, and a corresponding automatic loading and unloading device (mechanical arm and clamping and positioning fixture) is provided. The action and movement path of the automatic loading and unloading device are adjusted and set, and preparation work is done before the embedded mold injection molding of the fuse link.

[0140] Next, the fuse is grasped by an automated loading and unloading device, positioned and installed at a reserved position for the fuse in the mold, that is, the position to be operated as mentioned in the above method description. This position may be, for example, a recess 34 for accommodating the fuse, so that the fuse arranged here does not interfere with the mold closing when the mold is closed.

[0141] Then the first mold closing action is performed, and the mold is formed by an integrated molding mold (with multiple cavities and mechanical mechanisms arranged in the mold cavity). During the first mold closing, multiple shell parts 12 of the fuse tube shell are formed at the same time (for example, there are two shell parts 12, and according to the docking direction of the two shell parts 12, the two are called the upper shell part 12 and the lower shell part 12). After the mold is opened, the multiple shell parts after injection molding are switched and transferred to the corresponding processing positions to be combined (that is, the spatial positions of the multiple shell parts after the transfer are changed), and the fuse is loaded into the processing position reserved in the mold (the processing position is located at the center of the multiple shell parts). Before the second mold closing, the relative positions between the fuse and the multiple shell parts are determined, but they are in an uncombined state that has not yet been connected.

[0142] On the basis of the above unassembled state, the second mold closing is performed. At this time, the buried mold injection molding of the fuse (forming the combined structure of the fuse and the tube shell) and the upper shell 12 and the lower shell 12 of the next fuse are simultaneously performed at different cavities in the mold. After each single mold closing action, the upper shell 12 and the lower shell 12 of the tube shell of the next fuse can be formed at the same time, and the combined structure formed by the buried mold injection molding of the fuse of the fuse to be manufactured currently can be formed. Therefore, two injection moldings on two fuses are synchronously completed through one mold closing action without manual intervention.

[0143] After the injection molding corresponding to the second mold closing is completed, the mold opening action is performed, and the mold mechanical mechanism is used to complete the displacement of the molding chamber. As an example, in the embodiment, the chamber for molding the above-mentioned multiple shell parts can be an independent chamber, and the chamber for assembling the shell parts and the fuse is another independent chamber. The two chambers can be arranged on the same slide rail to achieve the displacement of the entire chamber in the mold. In other words, the chamber that has completed the molding of multiple shell parts is moved to the position where the assembly and mold closing are to be performed through the chamber displacement, so as to perform the assembly and mold closing. Since the other chamber has completed the assembly of the combined structure in the last mold closing, the chamber can be translated to a position for the automated grasping device to take the combined structure out of the chamber.

[0144] The automatic loading and unloading device grabs the new fuse (i.e. the fuse of the next fuse) for positioning and installation, and simultaneously takes out the finished product (i.e. the combined structure of the fuse shell and the fuse) that has been integrally molded in the mold within one displacement stroke. Subsequently, the automatic loading and unloading device grabs the new fuse (the fuse of the next fuse), stands by at the designated stroke position (i.e. the standby position mentioned in the above description), waits for the completion of this injection molding, and prepares for the next injection molding of the fuse, and operates reciprocatingly and continuously.

[0145] In the above implementation process, the above three actions (i.e., the material preparation and mold closing step, the transfer step, and the assembly and mold closing step corresponding to the same fuse) are connected to form the injection molding cycle of the finished product. The injection molding cycle generally takes 20 to 100 seconds, and can also be 30 to 60 seconds, 40 to 80 seconds, etc. The above mold opening and closing actions are repeated, and the injection molded inserts (fuse links) and injection molded products (combined structures) are automatically loaded and unloaded, which can realize stable and reliable automatic continuous production operations.

[0146] According to the manufacturing method provided in the embodiment of the present application, the step of preparing the material and closing the mold may further include: forming a plurality of shell parts 12 at different positions, wherein at least two of the aforementioned plurality of shell parts 12 are staggered in the extension direction of the housing 10. In the embodiment, such staggered arrangement facilitates the simplification of the movement of each mechanism in the mold and facilitates the conversion of the position of the cavity used for the assembly and closing of the mold when the conductor is embedded in the assembly and closing of the mold step.

[0147] In the embodiment, the “extension direction of the shell 10” referred to here should be understood to have the following meaning: the shell 10 has a regular or relatively regular geometric shape, and the extension direction of the feature that can be obtained from the geometric shape and used to determine the specific shape of the geometric shape can be used as the extension direction of the shell 10.

[0148] Here, taking a prism as an example, a prism can be regarded as a regular geometric shape, and the edge sandwiched between the two base surfaces is the feature that can be used to determine the specific shape of the prism. Then the extension direction of the edge is the extension direction of the prism.

[0149] In addition, for relatively regular geometric shapes, a cylinder in a more general sense is taken as an example. The cylinder has two identical bottom surfaces, and the bottom surfaces can be regular geometric shapes, such as square (in this case, the cylinder is a quadrangular prism), circular (in this case, the cylinder may be a cylinder), and elliptical as mentioned in the above description. Taking the bottom surface of an ellipse as an example, the side surface sandwiched between the two bottom surfaces is the feature that can be used to determine the specific shape of the cylinder, and the extension direction of the side surface is the extension direction of the cylinder.

[0150] In an embodiment, as an example, the shell 10 of the electrical component manufactured by the manufacturing method provided in the embodiment of the present application can be, for example, a cylinder as above, and the bottom surface can be, for example, circular, so that the shell 10 is formed as a cylinder, and the bottom surface can also be, for example, square (rectangular), so that the shell 10 can be, for example, formed as a cuboid.

[0151] It should be noted that, in practical applications, for example, in an example where the housing 10 is a rectangular parallelepiped, the adjacent side surfaces of the housing 10 may be transitioned with fillets, and in an example where the housing 10 is a cylinder, the bottom surface and the side surfaces of the housing 10 may also be transitioned with fillets or chamfers. These transition forms make the shape of the housing 10 not a rectangular parallelepiped or a cylinder in the strict sense, but it should be understood that, herein, the rectangular parallelepiped shape, cylindrical shape, and other shapes not specifically described in the housing 10 of the electrical component manufactured by the manufacturing method provided in the embodiment of the present application are not inconsistent with these shapes due to the setting of the fillets and / or chamfers of the housing 10 itself.

[0152] In the embodiment, taking the rectangular parallelepiped shell 10 as an example, its extension direction may include a length direction, a width direction and a height direction according to its length, width and height. For the length direction and the width direction, when the two are horizontal, they may be referred to as the left-right direction and the front-back direction in space. In other words, at least two of the above-mentioned multiple shell portions 12 may be staggered in the left-right direction or in the front-back direction. The so-called "staggered" here means having a certain interval in the corresponding direction, such as the left-right direction, and also having a certain interval perpendicular to the left-right direction, such as the height direction.

[0153] In addition, according to the manufacturing method provided in the embodiment of the present application, the staggering of at least two shell parts 12 means that when each of the shell parts 12 referred to by the at least two shell parts 12 can have a corresponding other shell part 12, the two present the above staggered state in space. As an example, the shell 10 can be formed by two shell parts 12, for example, the shell 10 can be a rectangular parallelepiped as above, and the two shell parts 12 can be connected together along the height direction. For the example here, the two shell parts 12 can be staggered with each other in the width direction of the shell 10 when forming.

[0154] In addition, in the embodiment, the staggering of at least two shells 12 should be understood as the staggered state of the shells 12 in the spatial position as described above, and the posture of the shells 12 in space itself may not be specifically limited. In other words, in the process of combining different shells 12 into a combined structure after molding, different clamping motion paths can be configured for the shells 12 according to the position of the shells 12 and their spatial posture. Specifically, the shells 12 can be clamped to the processing position by translational motion, or by translational motion combined with rotation.

[0155] According to the manufacturing method provided in the embodiment of the present application, the assembly and mold closing step may further include: the fluid plastic is also located and solidified on the outer side of at least one of the adjacent shell parts 12 .

[0156] In the embodiment, when adjacent shells 12 are connected, the fluid plastic is located on the outer side of at least one of them, so that after the fluid plastic is solidified, the fluid plastic can generally include a portion between adjacent shells 12 for connecting adjacent shells 12, and can also include a portion located on the outer side of at least one shell 12, which is connected to the plastic between the shells 12 and attached to the outer side of at least one shell 12. The plastic attached to the outer side of at least one shell 12 provides additional adhesion between the plastic and the attached shell 12, thereby ensuring that the solidified fluid plastic has a better connection effect.

[0157] In the embodiment, the plastic part located on the outside of at least one shell portion 12 is referred to herein as a connecting member 38. As an example, the connecting member 38 may protrude from the outside of the shell portion 12 to which it is attached. However, in other examples, the connecting member 38 may also be filled in some recessed features pre-molded in the outside of the shell portion 12 in the material preparation and mold closing step, so as to be flush with the outside of the shell portion 12. In the following, the description will focus on these examples.

[0158] According to the manufacturing method provided by the embodiment of the present application, as mentioned in the above description, the step of preparing the material and closing the mold may further include: forming a recessed receiving portion 14 on the outer side of at least one of the multiple shell portions 12, wherein the receiving portion 14 is configured to receive the fluid plastic. This is conducive to defining the shape of the connecting member 38 and facilitating the execution of the injection molding process.

[0159] According to the manufacturing method provided by the embodiment of the present application, the material preparation and mold closing step may also include: forming a receiving portion 14 on the outer side of each shell portion 12, wherein adjacent shell portions 12 are constructed so that the receiving portions 14 respectively located on adjacent shell portions 12 are engaged with each other to provide a space for receiving fluid plastic.

[0160] In the embodiment, the connecting member 38 formed by the solidified injection molded plastic is divided into two parts, one part is distributed in the receiving portion 14 of one of the adjacent shell parts 12, and the other part is distributed in the receiving portion 14 of the other separated shell parts 12, and these two parts are connected together and attached to the corresponding shell parts 12 respectively, thereby providing a greater joining force for the connection of the adjacent shell parts 12, thereby obtaining better connection reliability.

[0161] According to the manufacturing method provided by the embodiment of the present application, the material preparation and mold closing step may also include: constructing a shell portion 12 with a housing portion 14, so that the housing portion 14 has a first portion 16 opened from an edge portion 30 of the shell portion 12 configured to connect an adjacent shell portion 12, and the housing portion 14 has a second portion 18 connected to the first portion 16 and located on a side of the first portion 16 away from the edge portion 30, the second portion 18 has a first width at a first position and a second width at a second position, the first width is smaller than the second width, and the first position is closer to the first portion 16 than the second position.

[0162] First of all, it should be made clear that the "edge portion 30" referred to herein is a term derived from the thickness of the shell portion 12. Specifically, since one shell portion 12 is to form a housing 10 with other shell portions 12, that is, as a hollow tube shell of a fuse, in essence, each shell portion 12 is a part of the wall portion of the housing 10 that defines the hollow portion of the housing 10, and the wall portion reflects the thickness of the housing 10. In other words, the shape of each shell portion 12 is generally concave to one side in space, so as to define a part of the space of the hollow portion of the housing 10 that is finally formed, and therefore, the thickness of each shell portion 12 is the thickness of the wall portion of the corresponding part of the housing 10.

[0163] After clarifying the concept of the thickness of the shell 12 , the edge portion 30 is essentially the exposed thickness surface of the shell 12 based on the concept of the thickness of the shell 12 . The thickness surface is generally strip-shaped, and its width is exactly the thickness of the shell 12 .

[0164] Therefore, the first portion 16 is open at the edge portion 30, which means that one side of the first portion 16 is cut away from the edge portion 30 (intended to characterize the structure of the first portion 16, and does not mean that the edge portion 30 is formed by a mechanism capable of performing a "cut away" action), and a cut is formed, thereby communicating with the space outside the first portion 16. In the embodiment, the first portion 16 extends from the cut away from the edge portion 30 to the second portion 18.

[0165] Further, as mentioned in the above description, the second portion 18 includes a first position closer to the first portion 16 and a second position relatively far from the first portion 16 , and the first position is narrower than the second position, that is, has a smaller width.

[0166] In the embodiment, the width of the first position and the second position can be determined in the following manner. Specifically, as described above, the edge portion 30 of the shell portion 12 is substantially a strip-shaped thickness surface. When adjacent shell portions 12 are connected, the edge portions 30 of the two will be connected together, so the directions of the edge portions 30 of the two that are configured to be connected to each other are substantially consistent. In the embodiment, the two edge portions 30 are butted together to form a seam 24. Generally, because the edge portion 30 is strip-shaped, the seam 24 is also strip-shaped, and the direction in which it extends is within the plane where the thickness surface is located. Here, the direction parallel to the thickness surface of the seam 24 is used as the direction for determining the width direction of the first position and the second position.

[0167] In the embodiment, in the assembled structure of the manufactured electrical component, the shell 12 and the connecting member 38 may be subjected to a force that causes the two to separate from each other. This force is often along the extension direction perpendicular to the joint 24 or perpendicular to the thickness surface, that is, this force gives the connecting member 38 a tendency to escape from the accommodating portion 14 along the above-mentioned notch. However, the first part 16 and the second part 18 provided in the above description, especially the second part 18, effectively curb this tendency. Because the first position is narrower than the second position, when the connecting member 38 is subjected to this pulling force, the position of the connecting member 38 corresponding to the second position cannot pass through the narrower first position because it has a larger width.

[0168] On the basis of the above shape of the second portion 18, the second portion 18 may have a more specific different shape. Specifically, according to the manufacturing method provided in the embodiment of the present application, the step of preparing the material and closing the mold may also include: constructing the shell portion 12 with the accommodating portion 14 so that the width of the second portion 18 gradually increases from the side where the first portion 16 is located to the side away from the first portion 16. In this way, in the embodiment, the second portion 18 gradually increases in width along the direction away from the first portion 16, presenting a "tapered" structure.

[0169] In an embodiment, the step of preparing materials and closing the mold may further include: constructing the shell 12 formed with the accommodating portion 14 to have a plurality of second portions 18, and these second portions 18 are arranged at intervals along the extension direction of the first portion 16, that is, the extension direction of the above-mentioned seam 24. In this way, according to the manufacturing method provided in the embodiment of the present application, these second portions 18 are used to provide a certain degree of anti-separation protection for different positions of the seam 24.

[0170] According to the manufacturing method provided by the embodiments of the present application, in other examples, the material preparation and mold closing step may also include: constructing a shell portion 12 with a accommodating portion 14, so that the width of the second portion 18 has at least one mutation from the side where the first portion 16 is located to the side away from the first portion 16.

[0171] In this example, unlike the gradual extension of the width of the second portion 18 mentioned in the above description, the width of the second portion 18 in this example has at least one mutation. The "mutation" referred to here should be understood to include the following meaning: along the direction away from the first portion 16, at a certain position (hereinafter referred to as the mutation position), the width of the second portion 18 changes significantly compared to before the certain position, and this change makes the second portion 18 present a step shape.

[0172] According to the manufacturing method provided in the embodiment of the present application, with the step-shaped mutation mentioned above, when the portion of the connecting member 38 in the second part 18 attempts to detach from the notch of the first part 16, the portion of the connecting member 38 in the second part 18 with a larger width after the mutation position will be directly stuck in the step position of the second part 18, thereby curbing the tendency of the connecting member 38 to move outward.

[0173] According to the manufacturing method provided in an embodiment of the present application, the material preparation and mold closing step may also include: constructing a shell portion 12 with a accommodating portion 14, so that the accommodating portion 14 has a plurality of first portions 16 spaced apart along the edge portion 30, and the accommodating portion 14 has a plurality of second portions 18 (as mentioned in the above description), and each second portion 18 is connected to the corresponding first portion 16.

[0174] See also Figure 3 and Figure 4 , taking the case 10 having two shell parts 12 as an example, Figure 3 and Figure 4 , a first portion 16 arranged in a surrounding shape and a plurality of second portions 18 connected to the first portion 16 are shown. For one shell portion 12 , two second portions 18 may be arranged on two sides of the shell portion 12 where the conductor 40 does not pass, for example.

[0175] See also Figure 5 , Figure 5 Another example is shown in Figure 5 In FIG. 1 , the second portion 18 is not shown, but it can be seen that the first portion 16 is filled with the connecting member 38. Figure 5 In the example given, the edge portion 30 of the adjacent shell portion 12, that is, the thickness surface is provided with a filling portion 22 (obviously, the filling portion 22 is concave) capable of accommodating the solidified fluid plastic, that is, the connecting member 38, and the first portion 16 can connect the filling portion 22 provided on the thickness surface with the external environment, so that the fluid plastic can be injected into the filling portion 22. In this example, a plurality of first portions 16 can be arranged at intervals along the seam 24, for example, a first portion 16 is arranged on each side that does not pass through the conductor 40, so that the fluid plastic can be injected into the filling portion 22.

[0176] According to the manufacturing method provided by the embodiment of the present application, the material preparation and mold closing step may further include: constructing a shell portion 12 with an accommodating portion 14, so that the inner side of the shell portion 12 with the accommodating portion 14 is formed with a convex portion 20 corresponding in position to the accommodating portion 14.

[0177] According to the manufacturing method provided in the embodiment of the present application, the convex portion 20 formed on the inner side of the shell portion 12 has a reinforcing effect. Specifically, Figure 6 As shown, this reinforcement effect is reflected in the position of the convex portion 20 corresponding to the receiving portion 14. In this way, the thinner position of the shell 12 caused by the structure of the receiving portion 14 is reinforced by the inner convex portion 20, ensuring that the shell 12 will not reduce the strength due to the setting of the receiving portion 14. In the embodiment, among the adjacent shells 12, since the receiving portion 14 can be formed on only one shell 12, the convex portion 20 can be formed on the inner side of the position corresponding to the receiving portion 14 of only one shell 12. In addition, in some examples, the adjacent shells 12 all have receiving portions 14, and the convex portions 20 can be correspondingly set.

[0178] In the embodiment, the protrusion 20 is configured to limit the displacement and deviation of the electrical component in the length direction of the electrical component during the integral injection molding process. At the same time, considering the use characteristics of the electrical component, the strength of the housing can also be improved to a certain extent.

[0179] Furthermore, in the embodiment, preferably, the convex portion 20 as described above is not provided around the hole portion of the housing 10 through which the conductor 40 passes.

[0180] In addition, as an additional example based on the example of providing the convex parts 20 on the inner sides of the adjacent shell parts 12, the convex parts 20 respectively located in the adjacent shell parts 12 can be engaged with each other when the adjacent shell parts 12 are joined. Figure 6 As shown, Figure 6 In the embodiment, a concave structure is further formed on the convex part 20, and in another shell part 12 not shown and connected with the shell part 12, the convex part 20 at the corresponding position may have a boss structure, and the boss structure may be slightly larger than the concave structure in size so as to be embedded in the concave structure, so that the two convex parts 20 are in a clamping state. In this way, the connection strength between adjacent shell parts 12 is increased.

[0181] In addition, as an alternative example, the convex portion 20 can also be used as a sealing structure for sealing the fluid plastic during the second injection molding process. Specifically, the convex portion 20 of one of the adjacent shell portions 12 can extend through the gap formed by the thickness surface of the adjacent shell portion 12 and abut against the inner side of the other, so that the gap between the convex portion 20 and the inner side of the other and the gap between the aforementioned thickness surfaces form a maze structure, thereby preventing the fluid plastic from flowing into the assembled shell 10.

[0182] According to the manufacturing method provided in the embodiment of the present application, the step of preparing materials and closing the mold may also include:

[0183] A plurality of receiving portions 14 are formed on the outer side of each shell portion 12, and the shell portion 12 formed with the receiving portions 14 is structured so that the shell portion 12 formed with the receiving portions 14 is formed with a convex portion 20 corresponding to each receiving portion 14, and adjacent convex portions 20 are connected. Thus, adjacent convex portions 20 are connected, so that these convex portions 20 have better integrity, and therefore, it is more conducive to increasing the strength of the housing 10.

[0184] According to the manufacturing method provided in the embodiment of the present application, the step of preparing materials and closing the mold may also include:

[0185] A recessed filling portion 22 is formed on an edge portion 30 of the shell portion 12 configured to connect adjacent shell portions 12 . In an embodiment, the adjacent shell portions 12 are constructed so that the filling portions 22 respectively located on the adjacent shell portions 12 are engaged with each other to provide a space for accommodating fluid plastic.

[0186] In the embodiment, as explained in the above description herein, on the shell portion 12 having the receiving portion 14 , the filling portion 22 is in communication with the receiving portion 14 , and the fluid plastic is configured to be injected from the receiving portion 14 into the filling portion 22 .

[0187] According to the manufacturing method provided in the embodiment of the present application, the step of preparing materials and closing the mold may also include:

[0188] A recessed filling portion 22 is formed on an edge portion 30 of the shell portion 12 configured to connect adjacent shell portions 12, and the filling portion 22 is also configured to be open from the outer side of the shell portion 12. In an embodiment, adjacent shell portions 12 are constructed so that the filling portions 22 respectively located on adjacent shell portions 12 are engaged with each other to provide a space for accommodating fluid plastic.

[0189] Different from the above example, in this example, the filling portion 22 may no longer be connected to the external environment via the accommodating portion 14, but may be directly connected to the external environment by providing an open structure on the outer side of the shell portion 12, for example, by injecting fluid plastic into the filling portion 22 through an injection hole located on the outer side and directly connected to the filling portion 22.

[0190] According to the manufacturing method provided in the embodiment of the present application, the step of preparing materials and closing the mold may also include:

[0191] Adjacent shell portions 12 are configured so that the joint 24 formed by the adjacent shell portions 12 has a direction-changing extension section 26 located on the side where the inner space of the shell 10 is located. In an embodiment, the direction-changing extension section 26 extends from the filling portion 22 to the inner space of the shell 10 and changes its extension direction at least once.

[0192] In the embodiment, during the second injection molding, the fluid plastic may flow into the shell 10 under the action of high temperature and high pressure. Here, through the redirected extension section 26, the joint 24 essentially forms a labyrinth sealing structure that changes the extension direction, thereby preventing the fluid plastic from flowing into the interior of the shell 10.

[0193] In the embodiment, Figure 5 For example, Figure 5 An example of a shell 10 is given in the figure, in which the redirecting extension section 26 can be jointly defined by a step portion 28 inside the shell portion 12 and an inner side of another shell portion 12 adjacent to the shell portion 12, wherein the extension manner of the step portion 28 can be the same as the extension manner of the above protrusion 20, so that the redirecting extension section 26 can be perpendicular to the portion of the seam 24 between the thickness surfaces.

[0194] According to the manufacturing method provided in the embodiment of the present application, the step of preparing materials and closing the mold may also include:

[0195] A protruding positioning portion 32 is formed on the inner side of the shell 12, and the portion of the positioning portion 32 that exceeds the shell 12 is configured to connect adjacent shells 12. In an embodiment, a recess 34 corresponding to the positioning portion 32 is formed on the inner side of the shell 12 adjacent to the shell 12 where the positioning portion 32 is located, wherein the recess 34 is configured to be inserted into the positioning portion 32 when a plurality of shells 12 are combined. In an embodiment, the connection strength between adjacent shells 12 is further increased through such plug-in fit.

[0196] Combination Figure 6 and Figure 7 In the embodiment, the positioning portion 32 may be, for example, a column structure, such as a cylindrical structure, and the recess 34 may be, for example, a recessed structure provided on the end surface of the columnar portion. In the embodiment, as an example, the end surface of the columnar portion may be flush with the end surface of the stepped portion 28 as described above, that is, higher than the thickness surface of the shell portion 12 where the columnar portion is located.

[0197] According to the manufacturing method provided in the embodiment of the present application, the step of preparing materials and closing the mold may also include:

[0198] A protruding structure 46 is formed on the inner side of the shell 12 (the protruding structure 46 is the columnar portion mentioned above, combined with Figure 5 as well as Figure 7 , which is equivalent to protruding from the inner side of the shell 12), and the shell 12 is constructed so that the shell 12 is formed with a reinforcing structure 36 connecting the protruding structure 46 and the inner side of the shell 12. Figure 7 As shown, the reinforcement structure 36 may be, for example, a reinforcement rib connecting the protruding structure 46 and the inner side of the shell 12 , so as to improve the connection strength between the protruding structure 46 and the shell 12 where it is located.

[0199] According to the manufacturing method provided in the embodiment of the present application, the assembly and mold closing step may further include: constructing the conductor 40 so that the conductor 40 has a through hole 42 connecting the two sides of the conductor 40, and the fluid plastic is also injected into the through hole 42 to connect the solidified fluid plastic located on the two sides of the conductor 40 after solidification. In the embodiment, the two sides of the conductor 40 face the two shell parts 12 respectively.

[0200] In an embodiment, the conductor 40, that is, the fuse as described above, may have a wiring structure located at both ends and a fuse structure located in the middle of the wiring structure as a whole. In an embodiment, the wiring structure may be, for example, in a plate shape. In an embodiment, the conductor 40 passes through the housing 10 as a whole, and the two wiring structures may be sandwiched between the two shell parts 12, and the two sides of each wiring structure, that is, the "two sides of the conductor 40" as mentioned above, are the two sides of the wiring structure referred to here.

[0201] In the embodiment, the housing 10, that is, the housing 10 formed by the shell part 12, can be respectively provided with holes for the conductor 40 to pass through on two opposite sides (for the cylindrical housing 10, substantially on two bottoms). In the embodiment, the two wiring structures are correspondingly penetrated in the two through holes 42.

[0202] In the embodiment, the fluid plastic is also filled between the inner side of the through hole 42 and the outer side of the wiring structure passing through the through hole 42 to connect the wiring structure and the housing 10. In the embodiment, the through hole 42 on the conductor 40, specifically the through hole 42 on the wiring structure, can be filled with the fluid plastic, so that after curing, the plastic in the through hole 42 can connect the plastics on both sides of the wiring structure.

[0203] In the embodiment, when the through hole 42 is not provided, the plastics on both sides of the wiring structure are not connected. Therefore, after the fluid plastic solidifies, the shrinkage of the plastics on both sides of the wiring structure is uneven, the edges in the width direction of the wiring structure are relatively uniform, and the middle part in the width direction of the wiring structure shrinks unevenly. After the through hole 42 is provided to connect the plastics on both sides, the plastics in the through hole 42 are used as a "bridge" to promote the transmission of force between the plastics on both sides, so as to cause the plastics on both sides to shrink to a relatively uniform state, thereby reducing the internal stress of the plastics after shrinkage.

[0204] In addition, in the embodiment, the plastic in the through hole 42 acts as a “bridge” to bridge the plastic on both sides of the wiring structure, which is equivalent to further bridging the two shell parts 12 , thereby improving the strength and structural stability of the housing 10 .

[0205] In the embodiment, as a strength, the number of through holes 42 provided here may be, for example, two, but it is not limited thereto, and the number of through holes 42 may be, for example, one, three, four or even more.

[0206] In other examples, considering the performance requirement of the pressure-bearing strength of the inner cavity of the shell 10, it is also possible to reserve an anti-plastic shrinkage groove surface on the part of the wiring structure connected to the two shell parts 12, and a closed groove may be formed corresponding to the anti-plastic shrinkage groove surface at the corresponding position of the wiring structure. During the second injection molding, the fluid plastic flow will fill the matched anti-plastic shrinkage groove surface and the closed groove, thereby storing a certain amount of fluid plastic. After the shell 10 is cooled, although there may be a certain shrinkage gap between the shell 10 and the wiring structure, a certain amount of plastic is stored in the matched anti-plastic shrinkage groove surface and the closed groove, which can compensate for this shrinkage, thereby still ensuring the pressure sealing of the shell 10, and further improving the sealing strength of the shell 10, so that it does not cause a series of problems such as pressure loss and insufficient strength of the shell 10, and the applicable scenarios are more extensive.

[0207] Considering the use environment in the electrical field, in order to improve the stability of pressure sealing and structural strength in the shell 10 under different working conditions (when the air pressure changes), for the high pressure bearing capacity (1-2500MPa, or even higher) of the sealed cavity formed inside the upper shell 12 and the lower shell 12 after integral injection molding, by comparing the manual glue bonding and the split assembly process, the complete shell 10 formed by integral molding mold injection molding according to the manufacturing method provided in the embodiment of the present application, and utilizing different selection and design considerations of the wall thickness of the shell 10, the electrical sealing performance, high-voltage withstand voltage stability, insulation reliability, and anti-seismic and anti-compression rupture performance of the shell 10 are significantly improved. For example, when the wall thickness of the shell 10 is selected to be >3mm, the inner cavity of the shell 10 should be able to withstand a pressure of >1982.5MPa when the current of the reference fuse is 20kA, and the inner cavity of the shell 10 should be able to withstand a pressure of >49MPa when the current of the fuse is 1kA.

[0208] According to the manufacturing method provided in the embodiment of the present application, the manufacturing method also includes testing and processing steps performed for the combined structure, and the testing and processing steps may include: testing the resistance of the conductor 40 of the combined structure; filling insulating particles into the shell 10 of the combined structure and sealing the shell 10 to form an electrical component; and performing electrical performance and insulation performance tests on the electrical component.

[0209] In the embodiment, the testing and processing steps essentially follow the production process of electrical components such as fuses in the prior art. After testing the resistance of the fuse, the shell 10 of the combined structure is filled with an insulating material such as quartz sand. The quartz sand can be filled through the vibration sand hole 44 formed on the shell 10 (i.e., on one of the shell parts 12). After filling, the hole is sealed to form a finished fuse. Finally, the electrical performance and insulation performance of the fuse are tested.

[0210] In the embodiment, the testing and processing steps are relatively independent of the material preparation and mold closing steps, the transfer steps, and the assembly and mold closing steps mentioned in the previous description, that is, the testing and processing steps have no direct impact on the material preparation and mold closing steps, the transfer steps, and the assembly and mold closing steps. However, it is precisely because the embodiment of the present application provides the above material preparation and mold closing steps, the transfer steps, and the assembly and mold closing steps that the embodiment of the present application is allowed to directly perform the testing and processing steps on the combined structure after obtaining the combined structure, without the need to perform post-processing of the glue dispensing operation and the installation of the clamp on the shell 10 as in the prior art. Therefore, after obtaining the combined structure, the embodiment of the present application directly performs the testing and processing steps on the combined structure, which represents the substantial simplification of the manufacturing process of electrical components by the manufacturing method provided by the embodiment of the present application.

[0211] According to a second aspect of an embodiment of the present application, an electrical component is provided, which may include a housing 10, and the housing 10 may include a plurality of shell portions 12 and a connecting member 38. In an embodiment, the shell portion 12 is configured to be formed by injection molding, and the connecting member 38 is located between adjacent shell portions 12, so as to be configured to connect the multiple shell portions 12 after combination, thereby forming the housing 10. In an embodiment, a portion of the connecting member 38 is located on the outer side of at least one of the adjacent shell portions 12. In this way, the shell portion 12 is formed by injection molding, and then the shell portion 12 is connected by using the connecting member 38, and a portion of the connecting member 38 is located on the outer side of at least one of the adjacent shell portions 12, which effectively improves the integrity and strength of the combined shell portion 12.

[0212] As an example, in the embodiment, the electrical component can be manufactured, for example, by the manufacturing method provided according to the first aspect of the embodiment of the present application, and the terms appearing in the second aspect of the embodiment of the present application all use the terms used in the first aspect of the embodiment of the present application, and they refer to the same content and have the same beneficial effects, which will not be repeated here. In addition, as an example, as described in the above description, the electrical component can be, for example, a fuse.

[0213] Specifically, a recessed receiving portion 14 is formed on the outer side of at least one of the plurality of shell portions 12 , wherein the receiving portion 14 is configured to receive a portion of the connecting member 38 .

[0214] Specifically, an accommodating portion 14 is formed on the outer side of each shell portion 12 , and adjacent shell portions 12 are configured such that the accommodating portions 14 respectively located on the adjacent shell portions 12 can engage with each other to provide a space for accommodating a portion of the connecting member 38 .

[0215] Specifically, the accommodating portion 14 has a first portion 16 opened from an edge portion 30 of the shell portion 12 configured to connect an adjacent shell portion 12, and the accommodating portion 14 has a second portion 18 connected to the first portion 16 and located on a side of the first portion 16 away from the edge portion 30, and the second portion 18 has a first width at a first position and a second width at a second position, the first width is smaller than the second width, and the first position is closer to the first portion 16 than the second position.

[0216] Specifically, the width of the second portion 18 gradually increases from the side where the first portion 16 is located to the side away from the first portion 16 .

[0217] Specifically, the width of the second portion 18 has at least one sudden change from the side where the first portion 16 is located to the side away from the first portion 16 .

[0218] Specifically, the receiving portion 14 has a plurality of first portions 16 spaced apart along the edge portion 30 , and the receiving portion 14 has a plurality of second portions 18 , each of the second portions 18 being in communication with a corresponding first portion 16 .

[0219] Specifically, the inner side of the shell 12 has a protrusion 20 corresponding to the receiving portion 14 in position, and the protrusion 20 protrudes from the inner side of the shell 12 toward a direction away from the inner side of the shell 12 .

[0220] Specifically, a plurality of accommodating portions 14 are formed on the outer side of each shell portion 12 , and convex portions 20 corresponding to the accommodating portions 14 formed on the inner side of the housing 10 are formed, and adjacent convex portions 20 are connected to each other.

[0221] Specifically, in addition, the adjacent shell portions 12 are configured such that the joint 24 formed by the adjacent shell portions 12 has a direction-changing extension section 26 located on the side where the inner space of the housing 10 is located;

[0222] The direction-changing extension section 26 extends from the filling portion 22 to the inner space of the housing 10 and changes its extension direction at least once.

[0223] One of the adjacent shell portions 12 is formed with a step portion 28 protruding from the inner side of the shell portion 12, and the step portion 28 is connected to an edge portion 30 of one of the adjacent shell portions 12 configured to be connected to the other of the adjacent shell portions 12 to form a step surface;

[0224] The inner side of the other adjacent shell portion 12 is joined to the stepped surface to form a direction-changing extension section 26 ; wherein the stepped portion 28 is formed on the convex portion 20 .

[0225] Specifically, a recessed filling portion 22 is formed on the edge portion 30 of the shell portion 12 which is configured to connect adjacent shell portions 12; wherein the adjacent shell portions 12 are constructed so that the filling portions 22 respectively located on the adjacent shell portions 12 are engaged with each other to provide a space for accommodating the connecting member 38.

[0226] Specifically, the adjacent shell portions 12 are configured such that the receiving portion 14 on the same shell portion 12 communicates with the filling portion 22 .

[0227] Specifically, as an alternative, the adjacent shell portions 12 are configured such that the joint 24 formed by the adjacent shell portions 12 has a direction-changing extension section 26 located on the side where the internal space of the housing 10 is located;

[0228] The direction-changing extension section 26 extends from the filling portion 22 to the inner space of the housing 10 and changes its extension direction at least once.

[0229] Specifically, as an alternative, one of the adjacent shell portions 12 is formed with a step portion 28 protruding from the inner side of the shell portion 12, and the step portion 28 is connected to an edge portion 30 of one of the adjacent shell portions 12 configured to be connected to the other of the adjacent shell portions 12 to form a step surface;

[0230] The edge portion 30 of the other adjacent shell portion 12 configured to be connected to one of the adjacent shell portions 12 is engaged with the stepped surface to form the direction-changing extension section 26 .

[0231] Specifically, a protruding positioning portion 32 is formed on the inner side of the shell portion 12 , and the positioning portion 32 exceeds the shell portion 12 and is configured to connect adjacent shell portions 12 ;

[0232] A recess 34 corresponding to the positioning portion 32 is formed in the inner side of the shell 12 adjacent to the shell 12 where the positioning portion 32 is located, wherein the recess 34 is configured to receive the positioning portion 32 when a plurality of shells 12 are combined.

[0233] Specifically, one of the adjacent shell portions 12 is formed with a step portion 28 protruding from the inner side of the shell portion 12, and the step portion 28 is connected to an edge portion 30 of one of the adjacent shell portions 12 configured to be connected to the other of the adjacent shell portions 12 to form a step surface;

[0234] The edge portion 30 of the other adjacent shell portion 12 configured to be connected to one of the adjacent shell portions 12 is joined with the stepped surface to form a joint 24, and the joint 24 has a direction-changing extension section 26 that changes the primary extension direction;

[0235] The recessed portion 34 is formed in the stepped portion 28 .

[0236] Specifically, a protruding structure 46 is formed on the inner side of the shell 12 , the protruding structure 46 has a recess 34 , and the shell 12 has a reinforcing structure 36 connecting the protruding structure 46 and the inner side of the shell 12 .

[0237] Specifically, the electrical component further includes a conductor 40, and the conductor 40 penetrates the housing 10;

[0238] The connecting member 38 is also located between the conductor 40 and the shell 12 to connect the shell 12 and the conductor 40;

[0239] The conductor 40 has a through hole 42 connecting two sides of the conductor 40 , and a portion of the connecting member 38 is inserted into the through hole 42 to connect the portions of the connecting member 38 located at two sides of the conductor 40 ;

[0240] The two sides of the conductor 40 face the two shell parts 12 respectively.

[0241] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. All equivalent structural changes made by using the contents of the present application specification and drawings under the innovative concept of the present application, or directly / indirectly applied in other related technical fields are included in the protection scope of the present application.

Claims

1. A method for manufacturing an electrical component, characterized in that: The electrical component comprises a housing and a conductor passing through the housing, and the manufacturing method comprises: A step of preparing materials and closing the mold is performed in the mold, wherein the mold is closed to injection mold a plurality of shell parts; a transfer step, transferring the plurality of shells and the conductor to a processing position, combining the plurality of shells, and passing the conductor through the combined plurality of shells; An assembly and mold closing step, in which the mold is closed, fluid plastic is injected between adjacent shell parts, and the fluid plastic is injected between the conductor and the shell part adjacent to the conductor, and the fluid plastic is solidified to form the shell and a combined structure of the shell and the conductor; Wherein, when the assembly mold closing step is performed, the material preparation mold closing step is synchronously performed in the mold for the next electrical component to form the multiple shell parts of the next electrical component; Wherein, after the assembly mold closing step, the transfer step and the assembly mold closing step are sequentially performed for the next electrical component to form the combined structure of the next electrical component.

2. The manufacturing method according to claim 1, characterized in that: The material preparation and mold closing step further includes placing the conductor in a waiting position in the mold, and the transfer step further includes transferring the conductor from the waiting position to the processing position.

3. The manufacturing method according to claim 1, characterized in that: The material preparation and mold closing step further includes: respectively molding the multiple shell parts at different positions, wherein at least two of the multiple shell parts are staggered in the extension direction of the shell body.

4. The manufacturing method according to claim 1, characterized in that: The assembly and mold closing step also includes: The fluid plastic is also located and solidified on an outer side of at least one of the adjacent shell portions.

5. The manufacturing method according to claim 4, characterized in that: The step of preparing materials and closing the mold also includes: A recessed receiving portion is formed on an outer side of at least one of the plurality of shell portions, wherein the receiving portion is configured to receive the fluid plastic.

6. The manufacturing method according to claim 5, characterized in that: The step of preparing materials and closing the mold also includes: The receiving portion is formed on an outer side of each of the shell portions, wherein the adjacent shell portions are configured such that the receiving portions respectively located on the adjacent shell portions are engaged with each other to provide a space for receiving the fluid plastic.

7. The manufacturing method according to claim 5, characterized in that: The step of preparing materials and closing the mold also includes: The shell portion having the accommodating portion is constructed so that the accommodating portion has a first portion opened from an edge portion of the shell portion configured to connect adjacent shell portions, and the accommodating portion has a second portion connected to the first portion and located on a side of the first portion away from the edge portion, the second portion has a first width at a first position and a second width at a second position, the first width is smaller than the second width, and the first position is closer to the first portion than the second position.

8. The manufacturing method according to claim 7, characterized in that: The step of preparing materials and closing the mold also includes: The shell portion formed with the accommodation portion is constructed so that the width of the second portion gradually increases from the side where the first portion is located to the side away from the first portion.

9. The manufacturing method according to claim 7, characterized in that: The step of preparing materials and closing the mold also includes: The shell portion formed with the accommodation portion is constructed so that the width of the second portion has at least one sudden change from the side where the first portion is located to the side away from the first portion.

10. The manufacturing method according to claim 7, characterized in that: The step of preparing materials and closing the mold also includes: The housing portion formed with the accommodation portion is configured so that the accommodation portion has a plurality of the first portions spaced apart along the edge portion, and so that the accommodation portion has a plurality of the second portions, and so that each of the second portions communicates with the corresponding first portion.

11. The manufacturing method according to claim 5, characterized in that: The step of preparing materials and closing the mold also includes: The shell portion in which the accommodation portion is formed is configured such that an inner side portion of the shell portion in which the accommodation portion is formed is formed with a convex portion corresponding in position to the accommodation portion.

12. The manufacturing method according to claim 11, characterized in that: The step of preparing materials and closing the mold also includes: A plurality of the accommodation portions are formed on the outer side of each shell portion, and the shell portion formed with the accommodation portions is constructed so that the shell portion formed with the accommodation portions is formed with a convex portion provided corresponding to each of the accommodation portions, and adjacent convex portions are connected.

13. The manufacturing method according to claim 5, characterized in that: The step of preparing materials and closing the mold also includes: forming a recessed filling portion on an edge portion of the shell portion configured to connect adjacent shell portions; wherein the adjacent shell parts are constructed so that the filling parts respectively located on the adjacent shell parts are engaged with each other to provide a space for accommodating the fluid plastic; Wherein, on the shell portion having the receiving portion, the filling portion is communicated with the receiving portion, and the fluid plastic is configured to be injected from the receiving portion into the filling portion.

14. The manufacturing method according to claim 1, characterized in that: The step of preparing materials and closing the mold also includes: A recessed filling portion is formed on an edge portion of the shell portion configured to connect adjacent shell portions, and the filling portion is further configured to be open from an outer side of the shell portion; The adjacent shell parts are constructed so that the filling parts respectively located on the adjacent shell parts are engaged with each other to provide a space for accommodating the fluid plastic.

15. The manufacturing method according to claim 13 or 14, characterized in that: The step of preparing materials and closing the mold also includes: Constructing adjacent shell portions so that a joint formed by the adjacent shell portions has a redirected extension section located on the side where the interior space of the shell is located; The direction-changing extension section extends from the filling portion and stops extending to the inner space of the shell, and changes the extension direction at least once.

16. The manufacturing method according to any one of claims 1 to 14, characterized in that: The step of preparing materials and closing the mold also includes: A protruding positioning portion is formed on the inner side of the shell portion, and a portion of the positioning portion that exceeds the shell portion is configured to connect adjacent shell portions; A recess corresponding to the positioning portion is formed at an inner side of a shell portion adjacent to the shell portion where the positioning portion is located, wherein the recess is configured to receive the positioning portion when the plurality of shell portions are combined.

17. The manufacturing method according to any one of claims 1 to 14, characterized in that: The step of preparing materials and closing the mold also includes: A protruding structure is formed on the inner side of the shell, and the shell is constructed such that the shell is formed with a reinforcing structure connecting the protruding structure and the inner side of the shell.

18. The manufacturing method according to any one of claims 1 to 14, characterized in that: The assembly and mold closing step also includes: The conductor is constructed so that the conductor has a through hole connecting two sides of the conductor, and the fluid plastic is also injected into the through hole to connect the solidified fluid plastics respectively located on two sides of the conductor after solidification; Wherein, the two sides of the conductor face the two shell parts respectively.

19. The manufacturing method according to any one of claims 1 to 14, characterized in that: The manufacturing method also includes testing and processing steps for the combined structure: testing the resistance of the conductor of the combined structure; Filling insulating particles into a shell of the combined structure and sealing the shell to form the electrical component; The electrical components are tested for electrical properties and insulation properties.

20. An electrical component, characterized in that: The electrical component comprises a housing, the housing comprising: a plurality of shell portions, the shell portions being configured to be formed by injection molding; A connecting member, the connecting member is located between adjacent shell parts, and is configured to connect the multiple shell parts after being combined to form the housing; Part of the connecting member is located on the outer side of at least one of the adjacent shell parts.

21. The electrical component according to claim 20, characterized in that A recessed receiving portion is formed on an outer side of at least one of the plurality of shell portions, wherein the receiving portion is configured to receive the portion of the connecting member.

22. The electrical component according to claim 21, characterized in that The receiving portion is formed on the outer side of each of the shell parts, and the adjacent shell parts are configured so that the receiving portions respectively located on the adjacent shell parts can be engaged with each other to provide a space for receiving the part of the connecting member.

23. The electrical component according to claim 21, characterized in that The accommodating portion has a first portion opened from an edge portion of the shell portion configured to connect adjacent shell portions, the accommodating portion has a second portion connected to the first portion and located on a side of the first portion away from the edge portion, the second portion has a first width at a first position and a second width at a second position, the first width is smaller than the second width, and the first position is closer to the first portion than the second position.

24. The electrical component according to claim 23, characterized in that The width of the second portion gradually increases from the side where the first portion is located to the side away from the first portion.

25. The electrical component according to claim 23, characterized in that The width of the second portion has at least one sudden change from the side where the first portion is located to the side away from the first portion.

26. The electrical component according to claim 23, characterized in that The receiving portion has a plurality of first portions spaced apart along the edge portion, and the receiving portion has a plurality of second portions, each of the second portions being in communication with the corresponding first portion.

27. The electrical component according to claim 21, characterized in that The inner side of the shell has a convex portion corresponding to the accommodating portion in position, and the convex portion protrudes from the inner side of the shell toward a direction away from the inner side of the shell.

28. The electrical component according to claim 27, characterized in that A plurality of the accommodating portions are formed on the outer side of each shell portion, and the inner side of the shell is formed with convex portions corresponding to the accommodating portions formed on the shell, and adjacent convex portions are connected to each other.

29. The electrical component according to claim 27, characterized in that The adjacent shell parts are configured so that a joint formed by the adjacent shell parts has a direction-changing extension section located on the side where the interior space of the shell is located; The shell portion is configured to form a concave filling portion on the edge portion connecting the adjacent shell portions, and the direction-changing extension section extends from the filling portion to the inner space of the shell and stops extending, and changes the extension direction at least once; One of the adjacent shell portions is formed with a step portion protruding from an inner side portion of the shell portion, the step portion being connected to an edge portion of the one of the adjacent shell portions configured to be connected to the other of the adjacent shell portions to form a step surface; wherein the inner side portion of the other one of the adjacent shell portions is engaged with the stepped surface to form the direction-changing extension section; Wherein, the stepped portion is formed on the convex portion.

30. The electrical component according to claim 20, characterized in that The shell portion is configured to form a recessed filling portion on an edge portion connecting adjacent shell portions; The adjacent shell parts are configured such that the filling parts respectively located on the adjacent shell parts are engaged with each other to provide a space for accommodating the connecting member.

31. The electrical component according to claim 30, characterized in that A recessed receiving portion is formed on an outer side of at least one of the plurality of shell portions, wherein the receiving portion is configured to receive the portion of the connecting member; Wherein, adjacent shell parts are configured so that the receiving part on the same shell part is communicated with the filling part.

32. The electrical component according to claim 30, characterized in that The adjacent shell parts are configured so that a joint formed by the adjacent shell parts has a direction-changing extension section located on the side where the interior space of the shell is located; The direction-changing extension section extends from the filling portion and stops extending to the inner space of the shell, and changes the extension direction at least once.

33. The electrical component according to claim 32, characterized in that One of the adjacent shell portions is formed with a step portion protruding from an inner side portion of the shell portion, the step portion being connected to an edge portion of the one of the adjacent shell portions configured to be connected to the other of the adjacent shell portions to form a step surface; Wherein, an edge portion of the other one of the adjacent shell portions, which is configured to be connected to the one of the adjacent shell portions, is engaged with the stepped surface to form the direction-changing extension section.

34. The electrical component according to claim 20, characterized in that The inner side of the shell portion is formed with a protruding positioning portion, and the positioning portion exceeds the shell portion and is configured to connect adjacent shell portions; A recess corresponding to the positioning portion is formed on the inner side of the shell portion adjacent to the shell portion where the positioning portion is located, wherein the recess is configured to allow the positioning portion to be inserted when the plurality of shell portions are combined.

35. The electrical component according to claim 34, characterized in that One of the adjacent shell portions is formed with a step portion protruding from an inner side portion of the shell portion, the step portion being connected to an edge portion of the one of the adjacent shell portions configured to be connected to the other of the adjacent shell portions to form a step surface; wherein an edge portion of the other of the adjacent shell portions configured to be connected to the one of the adjacent shell portions is engaged with the stepped surface to form a seam, and the seam has a direction-changing extension section that changes the primary extension direction; Wherein, the recessed portion is formed in the stepped portion.

36. The electrical component according to claim 35, characterized in that A protruding structure is formed on the inner side of the shell, the protruding structure has the concave portion, and the shell has a reinforcing structure connecting the protruding structure and the inner side of the shell.

37. The electrical component according to any one of claims 20 to 36, characterized in that The electrical component further includes a conductor, the conductor passing through the housing; Wherein, the connecting member is also located between the conductor and the shell portion to connect the shell portion and the conductor; The conductor has a through hole connecting two sides of the conductor, and a portion of the connecting member is inserted into the through hole to connect portions of the connecting member respectively located on two sides of the conductor; Wherein, the two sides of the conductor face the two shell parts respectively.

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