Fuse protection base

Abstract

The utility model relates to a fuse protection base, a fuse comprises an easy-to-fail area, and the protection base comprises a body used for fixing the fuse; the isolation part extends from the body, the isolation part is used for covering the easy-to-fail area in a first direction so as to isolate the easy-to-fail area from an external element, and the first direction is defined as the setting direction of the external element relative to the fuse; and the fixing parts are arranged on the body and located between the adjacent isolation parts, and the fixing parts are used for supporting the contact parts of the fuse. According to the invention, an easy-to-fail area of the fuse can be effectively isolated from external elements, failure risk points are shielded, the safety distance required by electronic devices placed around and the fuse is saved, the arrangement space required by the fuse is saved, the risk is reduced, and the fuse has safety; the corresponding isolation part structure is arranged at the position of the easy-to-fail area, so that the structure of the protection base can be reasonably configured, and the applicability to different fuse structures is wide.

Description

Technical Field

[0001] The present application relates to the technical field of fuses, and in particular to a fuse protection base. Background Art

[0002] Energy storage systems are developing day by day. In order to ensure the safety of the system's power connection, fuse structures are often configured between high-voltage DC distribution equipment, communication power equipment, and the power consumption and power supply ends as short-circuit and overcurrent protectors. Circuit protection devices, such as fuses, can melt the fuse with the heat generated by themselves or disconnect the fuse mechanically after the current exceeds the specified value for a period of time, thereby disconnecting the circuit to protect the equipment, instruments, etc. in the circuit. As a key component, the fuse has certain requirements for its fixed installation due to its particularity. In the related art, the traditional fixing method and base structure will expose the fuse to a large area, which requires the fuse to maintain a large distance from external electronic components to ensure electrical distance safety. The required layout space is large and the potential risk is high. Utility Model Content

[0003] Based on this, it is necessary to provide a space-saving and highly safe fuse protection base to address the above technical problems.

[0004] A fuse protection base, the fuse includes a failure-prone area, and the protection base includes:

[0005] a body for fixing the fuse; an isolating portion extending from the body, the isolating portion being used to cover the prone-to-failure region in a first direction so as to isolate the prone-to-failure region from external elements, the first direction being defined as a direction in which the external elements are arranged relative to the fuse; and

[0006] A fixing portion is provided on the main body and located between adjacent isolation portions, and the fixing portion is used to support the contact portion of the fuse.

[0007] In one embodiment, the protective base includes a fixing member, and the fixing member is used to connect the contact portion with the fixing portion.

[0008] In one embodiment, the fixing member includes a first fixing member and a second fixing member, the first fixing member is arranged on the fixing portion, the first fixing member is provided with a mounting hole and a protruding flange portion; the second fixing member can abut against one side of the flange portion, the other side of the flange portion abuts against the contact portion, and the second fixing member can pass through the contact portion to be connected with the mounting hole;

[0009] Alternatively, one side of the flange portion abuts against the contact portion and the other side abuts against the fixing portion, the second fixing member can abut against a side of the contact portion away from the first fixing member, and the second fixing member can pass through the contact portion to connect with the mounting hole.

[0010] In one embodiment, the protective base has a cavity and a first opening formed between adjacent isolation parts, the cavity is used to accommodate the fuse, the first opening is used to connect the cavity with the outside, the first opening matches the indicating part setting of the fuse, and the direction of the first opening is different from the first direction.

[0011] In one embodiment, the protective base has a cavity and a second opening formed between adjacent isolation portions, the cavity is used to accommodate the fuse, the second opening is used to connect the cavity with the outside, and the contact portion of the fuse can be arranged at the second opening.

[0012] In one embodiment, the height of the isolation portion extending from the body is higher than the height of the fuse body of the fuse.

[0013] In one embodiment, the isolation portion is provided with at least one notch, the notch is located at the edge of the isolation portion away from the main body, and / or the notch is located at the end of the isolation portion that matches the position of the contact portion; the notch is arranged to avoid the prone-to-failure area.

[0014] In one of the embodiments, a receiving portion for receiving a circuit is provided on a side of the isolation portion facing away from the fuse, and the receiving portion is provided with at least one wiring hole for the circuit to pass through.

[0015] In one of the embodiments, a fixing foot is provided at the bottom of the body, the fixing foot is provided with a through hole for setting a bolt, and the inner wall of the through hole is provided with a reinforcing sleeve.

[0016] In one embodiment, a reinforcing rib is provided on a side of the isolating portion facing away from the fuse, and the reinforcing rib is protruded on the isolating portion along a vertical direction;

[0017] And / or, the fixing portion and the main body are provided with reinforcing ribs, and the reinforcing ribs extend radially from the outer surface of the fixing portion.

[0018] The above-mentioned protective base can fix the fuse by setting the main body; the isolation part is set to effectively isolate the failure-prone area of ​​the fuse from external components, shield the failure risk point, save the safety distance required to be set between the surrounding electronic devices and the fuse, save the layout space required for the fuse, and at the same time reduce the risk and have safety; by setting the corresponding isolation part structure at the position of the failure-prone area, the structure of the protective base can be reasonably configured, and it has a wide applicability to different fuse structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a fuse in one embodiment of the present application.

[0020] Figure 2 This is a structural schematic diagram of a fuse installed on a protective base in an embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the explosion structure in one embodiment of the present application.

[0022] Figure 4 It is a schematic structural diagram of a protective base in one embodiment of the present application.

[0023] Figure 5 Schematic diagram of the structure of a fixing member in one embodiment of the present application.

[0024] Explanation of the accompanying drawings: 1. Fuse; 2. Fuse body; 3. Contact part; 4. End cover; 5. Indicator part; 51. Micro switch; 100. Protective base; 101. First opening; 102. Second opening; 110. Main body; 111. Fixing part; 1111. Fixing hole; 112. Fixing foot; 113. Reinforcement sleeve; 120. Isolation part; 121. First notch; 122. Second notch; 123. Storage part; 130. Fixing piece; 131. First fixing piece; 132. Second fixing piece; 1311. Flange part; 1312. Mounting hole. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0031] See also Figures 2 to 4 , Figures 2 to 4 The schematic diagram of the structure of the protective base in one embodiment of the present application is shown. The protective base 100 provided in one embodiment of the present application is used to install the fuse 1 in a high-voltage box, especially in a high-voltage box of an energy storage system. The fuse 1 includes a failure-prone area 6, which is an area that is easily interfered with and electric shocked by external components. The failure-prone area 6 needs to be isolated from external components by the protective base 100.

[0032] See also Figure 1 and Figure 2 , Figure 1 , Figure 2 The schematic diagram of the structure of the fuse in an embodiment of the present application and the schematic diagram of the structure of the fuse installed on the protective base are respectively shown. The fuse 1 includes a fuse body 2, an end cover 4, a contact portion 3 and an indicator portion 5. The fuse body 2 is provided with a fuse wire and other structures that can achieve circuit breaking in the event of overcurrent. The fuse body 2 is longitudinally ( Figure 2 The two ends of the fuse 1 (in the Y direction as shown in the figure) are closed by end caps 4, and the end caps 4 are connected to the fuse body 2 by screws. The contact part 3 connected to the fuse wire extends out from the end cap 4. An indicator part 5 is also provided on one side of the fuse body 1, and the indicator part 5 is arranged on the side of the fuse body 2 where the end cap 4 is not arranged. The indicator part 5 is installed on the fuse body 2 by screws, and the indicator part 5 can be an indicator and / or a micro switch 51, and the micro switch 51 can be arranged on the indicator. Since the end cap 4, the screws, and the indicator part 5 all include metal materials, the screws connecting the end cap 4 and the fuse body 2 and the screws connecting the indicator part 5 and the fuse body 2 are the easy-to-fail contacts of the fuse, and the easy-to-fail contacts themselves, the end caps 4, and the indicator part 5 are all the easy-to-fail areas 6 of the fuse. In particular, when the front and rear structures connected by the screws including metal materials are both metal, the areas at a preset distance from the screws and the structures connected thereto are all the easy-to-fail areas 6.

[0033] The protective base 100 includes a body 110 and an isolating portion 120. The body 110 is used to fix the fuse 1. The isolating portion 120 is extended from the body 110. The isolating portion 120 is used to Figure 2The first direction is defined as the arrangement direction of the external element relative to the fuse 1. When there are multiple external elements, the first direction may include multiple different directions.

[0034] The above-mentioned protective base 100 can fix the fuse 1 by setting the main body 110; the isolation part 120 is set to effectively isolate the failure-prone area 6 of the fuse 1 from external components, shield the failure risk point, shorten the safety distance required to be set between the electronic devices placed around and the fuse 1, save the layout space required for the fuse 1, and reduce risks, thereby ensuring safety; the corresponding isolation part 120 structure is set based on the position of the failure-prone area 6, so that the structure of the protective base 100 can be reasonably configured, and it has a wide applicability to different fuse 1 structures.

[0035] The body 110 and the isolating portion 120 of the protective base 100 form a cavity for accommodating and fixing the fuse 1, and the cavity can be connected to the outside. The protective base 100 is semi-enclosed relative to the fuse 1, and does not surround all sides of the fuse 1. For example, in some embodiments, the fuse 1 is a square body structure, and the protective base 100 relatively surrounds at most five sides of the fuse 1. The protective base 100 has at least one opening as a whole, and the opening is used to match the corresponding components of the fuse 1 or the matching circuit and other structures to communicate with the outside.

[0036] In one embodiment, the protective base 100 has a first opening 101 formed between adjacent isolation portions 120, the first opening 101 is used to connect the cavity with the outside, the first opening 101 matches the indicating portion 5 of the fuse 1, and the orientation of the first opening 101 is different from the first direction.

[0037] Specifically, Figure 2 As shown, the first opening 101 faces away from the main body 110, and the first opening 101 faces the vertical direction (such as Figure 2 The first opening 101 is arranged in the Z direction (as shown in the figure), which is perpendicular to the first direction. When the fuse 1 is installed, the fuse body 110 is placed on the body 110, and the indicating part 5 is arranged in a direction away from the body 110. The first opening 101 can expose the indicating part 5 in the direction of the opening, and is used to set the micro switch 51 of the indicating part 5 and the related circuits connecting the indicating part 5.

[0038] In one embodiment, the protective base 100 has a second opening 102 formed between adjacent isolation portions 120 , the second opening 102 is used to connect the cavity with the outside, and the contact portion 3 of the fuse 1 can be disposed in the second opening 102 .

[0039] like Figure 3 As shown, the direction of the second opening 102 may be different from the first direction, and / or, the direction of the second opening 102 may be different from the direction of the first opening 101, the direction is perpendicular to the first direction and the direction of the first opening 101, and the second opening 102 is oriented toward the longitudinal direction of the fuse 1. When the contact portion 3 is disposed in the second opening 102, it is exposed to the second opening 102 to be electrically connected to an external circuit, etc. The contact portion 3 may extend relative to the isolation portion 120, or may be flush with the isolation portion 120 or within the isolation portion 120, and the copper busbar and circuit connected to the contact portion 3 may extend from the second opening 102 and extend in the direction toward which the second opening 102 is oriented.

[0040] Specifically, in Figures 2 to 4 In the illustrated embodiment, the fuse 1 includes two side surfaces that are arranged opposite to each other in a first direction, and the external elements are arranged outside the two side surfaces. In order to achieve electrical isolation between the failure-prone area 6 of the fuse 1 and the external elements, when the fuse 1 is installed on the protective base 100, the two isolating portions 120 of the protective base 100 are respectively arranged between the two side surfaces of the fuse 1 and the external elements. At this time, the first direction includes the two directions toward which the two side surfaces of the fuse 1 are facing, the isolating portion 120 is flat and is arranged perpendicular to the first direction, the two isolating portions 120 are arranged in parallel, and the fuse 1 is arranged between the two isolating portions 120.

[0041] It can be understood that in other embodiments, the fuse 1 includes sides perpendicular to the longitudinal direction or perpendicular to the vertical direction, and external elements can also be arranged outside these sides. The isolation parts 120 are respectively arranged between the above-mentioned sides of the fuse and the external elements. Accordingly, the positions of the first opening 101 and the second opening 102 formed by the isolation part 120 are adjusted accordingly according to the arrangement of the circuit or the micro switch 51.

[0042] In one embodiment, the height of the isolation portion 120 extending from the body 110 is higher than the height of the fuse body 110 of the fuse 1 .

[0043] Specifically, in Figures 2 to 4 In the illustrated embodiment, the contact portion 3 of the fuse 1 is located at both ends of the longitudinal direction of the fuse body 2, and the end caps 4 are also disposed at both ends of the longitudinal direction of the fuse body 2, the longitudinal direction is perpendicular to the first direction, and the longitudinal direction is parallel to the direction of the second opening 102. In order to fix the end caps 4, most of the vulnerable contacts are located on the end caps 4, the isolation portion extends in the Y direction and exceeds both ends of the fuse body 2 in the longitudinal direction, so that most of the vulnerable contacts can be isolated, the height of the isolation portion 120 in the Z direction exceeds the height of the fuse body 2, and part of the vulnerable contacts 6 can be isolated, and preferably, the projection of the isolation portion 120 along the first direction covers the projection of the fuse 1 in the first direction.

[0044] In one embodiment, the isolation portion 120 is provided with at least one notch, and the notch is located at the edge of the isolation portion 120 away from the main body 110, or the notch is located at the end of the isolation portion 120 that matches the position of the contact portion 3, and the notch is arranged to avoid the prone-to-failure area 6.

[0045] like Figure 2 , Figure 3 As shown, the notch includes a first notch 121 and a second notch 122. The first notch 121 is located at the end of the isolation portion 120, and the position of the first notch 121 corresponds to the contact portion 3. The first notch 121 is used to pass the line connected to the contact portion 3. Figures 2 to 4 In the illustrated embodiment, the isolating portion 120 is provided with a first notch 121 at both ends parallel to the longitudinal direction of the fuse 1. The first notch 121 is provided starting from the upper edge of the isolating portion 120 and extending to the middle of the isolating portion 120, so that the contact portion 3 is exposed from the first notch 121, and it is convenient for the line or high-voltage copper busbar connected to the fuse 1 to pass through the first notch 121 in a direction perpendicular to the fuse 1. The two first notches 121 are arranged diagonally. The second notch 122 is located in the middle of the upper edge of each isolating portion 120. In the longitudinal direction of the fuse 1, each second notch 122 is located between the above two first notches 121. The position of the second notch 122 matches the position of the indicating portion 5, so that the line connecting the indicating portion 5 passes through the second notch 122. The vertical depth of the second notch 122 is less than the vertical depth of the first notch 121. It can be understood that the notch should be arranged to avoid the easy failure area 6, and the isolating portion 120 with a notch can still cover the easy failure area 6. The edges of the first notch 121 and the second notch 122 are rounded to prevent wear on the circuit.

[0046] A reinforcing rib is provided on the side of the isolating portion 120 away from the fuse 1 to increase the structural strength of the isolating portion 120. The isolating portion 120 extends upward from the body 110. Since the isolating portion 120 is a flat plate structure, the reinforcing rib is provided protrudingly on the isolating portion 120 along the vertical direction (the direction of the first opening 101) and can extend all the way to the side of the body 110 away from the fuse. A plurality of reinforcing ribs are provided at intervals.

[0047] In one of the embodiments, a storage portion 123 for storing lines is provided on the side of the isolation portion 120 away from the fuse 1. Specifically, the storage portion 123 is provided with at least one harness hole for the line to pass through. When multiple harness holes are provided, the multiple harness holes can classify and store multiple harnesses. The storage portion 123 can match the position setting of the first notch 121 or the second notch 122. The first notch 121 or the second notch 122 is formed at the edge of the isolation portion 120. The storage portion 123 is provided in the middle of the isolation portion 120 and is basically located in the same vertical plane as the first notch 121 or the second notch 122, so that the lines led out from the first notch 121 or the second notch 122 can be more reasonably stored in the storage portion 123, so as to avoid the potential safety hazards caused by the disorder of the harnesses during transportation and handling, and facilitate the reasonable connection and arrangement of other components.

[0048] In one embodiment, the body 110 is provided with a fixing portion 111 , and the fixing portion 111 is used to support the contact portion 3 of the fuse 1 . The protective base 100 includes a fixing member 130 , and the fixing member 130 is used to connect the contact portion 3 with the fixing portion 111 .

[0049] Specifically, the fixing portion 111 is protruded from the body 110, and the protruding height of the fixing portion 111 matches the position of the contact portion 3 of the fuse 1 provided on the protective base 100. The fixing portion 111 is provided with a fixing hole 1111 at a position corresponding to the through hole of the contact portion 3, and the fuse 1 and the protective base 100 are fixedly connected by a fixing member 130. The fixing portion 111 is cylindrical and protrudes from the body 110 as a whole, and a reinforcing rib is provided between the fixing portion 111 and the body 110 to increase the supporting strength of the fixing portion 111. Preferably, a plurality of reinforcing ribs are provided at intervals, and the plurality of reinforcing ribs extend radially from the outer surface of the fixing portion 111 and are connected to the body 110 and the isolation portion 120.

[0050] In one embodiment, the fixing member 130 includes a first fixing member 131 and a second fixing member 132, wherein the first fixing member 131 is disposed on the fixing portion 111, the first fixing member 131 is provided with a mounting hole 1312 and a protruding flange portion 1311, the second fixing member 132 can abut against one side of the flange portion 1311, and the other side of the flange portion 1311 abuts against the contact portion 3; the second fixing member 132 can pass through the contact portion 3 to connect with the mounting hole 1312 of the first fixing member 131. Alternatively, one side of the flange portion 1311 abuts against the contact portion 3 and the other side abuts against the fixing portion 111, the second fixing member 132 can abut against a side of the contact portion 3 away from the first fixing member 131, and the second fixing member 132 can pass through the contact portion 3 to connect with the mounting hole 1312 of the first fixing member 131.

[0051] Specifically, in Figure 5 In the illustrated embodiment, the first fixing member 131 is detachably arranged in the fixing hole 1111 of the fixing portion 111, the contact portion 3 is arranged on the fixing portion 111, and the flange portion 1311 abuts against the side of the contact portion 3 away from the fixing portion 111, that is, the contact portion 3 of the fuse 1 arranged on the protective base 100 is placed below the flange portion 1311, and the contact portion 3 is provided with a through hole corresponding to the mounting hole 1312, and the second fixing member 132 is fastened to the mounting hole 1312 of the first fixing member 131 and passes through the through hole of the contact portion 3, and the end of the second fixing member 132 after connection can abut against the side of the flange portion 1311 away from the fixing portion 111. The copper busbar or the wiring terminal of the cable is fixed to the contact portion 3 together with the second fixing member 132 and connected to the first fixing member 131, and after connection, the copper busbar or the connecting wire passes through the first notch 121.

[0052] Specifically, in other embodiments, the first fixing member 131 is arranged in the fixing hole 1111 of the fixing portion 111 by pre-embedding or other fixed connection methods, the flange portion 1311 abuts against the edge of the fixing portion 111, the contact portion 3 of the fuse 1 arranged on the protective base 100 is placed on the flange portion 1311, and the contact portion 3 is provided with a through hole corresponding to the mounting hole 1312. The second fixing member 132 passes through the through hole of the contact portion 3 and is fastened to the mounting hole 1312 of the first fixing member 131. After the connection, the end of the second fixing member 132 and the flange portion of the first fixing member 131 respectively abut against the upper and lower sides of the contact portion 3.

[0053] Furthermore, the second fixing member 132 is a bolt, the first fixing member 131 is a pre-buried nut with a flange portion 1311, and matching threads are provided inside the mounting hole 1312 and outside the second fixing member 132. Preferably, M8 bolts and nuts can be used. Figure 5 As shown, the difference between the maximum diameter D of the flange 1311 and the body diameter d of the second fixing member 132 is 1-5 mm. Preferably, the difference between the maximum diameter D and the body diameter d of the second fixing member 132 is 2 mm, 2.5 mm, or 3 mm. The thickness of the flange 1311 is 1-3 mm. Preferably, the thickness of the flange 1311 is 1.5 mm. By providing the flange 1311, the contact area between the protective base 100 and the fuse 1 or the external copper busbar can be increased. The mounting hole 1312 of the first fixing member 131 can increase the screwing length with the second fixing member 132. The first fixing member 131 is pre-buried in the fixing portion 111, so that the fuse 1 and the base are fixed more firmly.

[0054] In one embodiment, a fixing foot 112 is provided at the bottom of the body 110 , the fixing foot 112 is provided with a through hole for setting a bolt, and a reinforcing sleeve 113 is provided on the inner wall of the through hole.

[0055] Specifically, the fixing foot 112 is arranged on the side of the main body 110 extending from the isolating portion 120, and at least one fixing foot 112 is arranged on the side where each isolating portion 120 is connected to the main body. In some embodiments, the fixing feet 112 on the side of the main body from which each isolating portion 120 extends are arranged diagonally, and the outer side of the fixing foot 112 has rounded corners. The connection between the fixing foot 112 and the main body 110 is provided with reinforcing ribs to increase strength and facilitate mold making. In other embodiments, more fixing feet 112 are provided, and diagonal arrangement is not required.

[0056] The reinforcing sleeve 113 is arranged on the inner wall of the through hole of the fixed foot 112. The reinforcing sleeve 113 is annular in structure and is made of metal. The embedded reinforcing sleeve 113 in the fixed foot 112 can increase the strength of the fixed foot 112. The inner surface of the reinforcing sleeve 113 is provided with a thread to connect with the bolt, and the outer surface is provided with a knurling. The knurling on the outside of the reinforcing sleeve 113 can increase the friction with the inner wall of the fixed foot 112, making the installation more stable. The fixed foot 112 is provided with a hollowing treatment at the edge of the reinforcing sleeve 113. The hollowing treatment can facilitate the mold opening and cooling shrinkage during injection molding. In other embodiments, when the protective base 100 is formed by integrated 3D printing, in order to simplify the parts, the fixing part 130 may not be hollowed out.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A fuse protection base, characterized in that: The fuse includes a failure-prone area, and the protective base includes: The body is used to fix the fuse; an isolation portion extending from the body, the isolation portion being used to cover the prone-to-failure region in a first direction so as to isolate the prone-to-failure region from external elements, the first direction being defined as a direction in which the external elements are disposed relative to the fuse; and A fixing portion is provided on the main body and located between adjacent isolation portions, and the fixing portion is used to support the contact portion of the fuse.

2. The fuse protection base according to claim 1, characterized in that: The protective base includes a fixing member, and the fixing member is used to connect the contact portion with the fixing portion.

3. The fuse protection base according to claim 2, characterized in that: The fixing member includes a first fixing member and a second fixing member, wherein the first fixing member is arranged on the fixing portion, and the first fixing member is provided with a mounting hole and a protruding flange portion; the second fixing member can abut against one side of the flange portion, and the other side of the flange portion abuts against the contact portion, and the second fixing member can pass through the contact portion to be connected with the mounting hole; Alternatively, one side of the flange portion abuts against the contact portion and the other side abuts against the fixing portion, the second fixing member can abut against a side of the contact portion away from the first fixing member, and the second fixing member can pass through the contact portion to connect with the mounting hole.

4. The fuse protection base according to claim 1, characterized in that: The protective base has a cavity and a first opening formed between adjacent isolation parts, the cavity is used to accommodate the fuse, the first opening is used to connect the cavity with the outside, the first opening matches the indicating part setting of the fuse, and the orientation of the first opening is different from the first direction.

5. The fuse protection base according to claim 1, characterized in that: The protective base has a cavity formed between adjacent isolation parts and a second opening, the cavity is used to accommodate the fuse, the second opening is used to connect the cavity with the outside, and the contact part of the fuse can be arranged at the second opening.

6. The fuse protection base according to claim 1, characterized in that: The height of the isolating portion extending from the body is higher than the height of the fuse body of the fuse.

7. The fuse protection base according to claim 1, characterized in that: The isolation part is provided with at least one notch, the notch is located at the edge of the isolation part away from the main body, and / or the notch is located at the end of the isolation part matching the position of the contact part; the notch is arranged to avoid the prone-to-failure area.

8. The fuse protection base according to claim 1, characterized in that: A receiving portion for receiving a circuit is provided on a side of the isolation portion facing away from the fuse, and the receiving portion is provided with at least one wiring hole for the circuit to pass through.

9. The fuse protection base according to claim 1, characterized in that: The bottom of the body is provided with a fixing foot, the fixing foot is provided with a through hole for arranging a bolt, and the inner wall of the through hole is provided with a reinforcing sleeve.

10. The fuse protection base according to claim 1, characterized in that: A reinforcing rib is provided on a side of the isolating portion away from the fuse, and the reinforcing rib is protruded on the isolating portion along a vertical direction; And / or, the fixing portion and the main body are provided with reinforcing ribs, and the reinforcing ribs extend radially from the outer surface of the fixing portion.

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