Electric vehicle fuse box

By designing the locking mechanism and connection mechanism of the electric vehicle fuse box, the poor line contact problem caused by loose vibration of the fuse is solved, which significantly reduces the risk of personal property losses and improves the usage rate and safety of the fuse box.

CN222600897UActive Publication Date: 2025-03-11TIANJIN AIMA VEHICLE TECH CO LTD
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Patent Information

Application Number
CN202420482670.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-13
Publication Date
2025-03-11
Estimated Expiration
2034-03-13

AI Technical Summary

Technical Problem

The fuses in the short-circuit protection device of existing electric vehicles are prone to loosening due to vibration, resulting in poor contact with the line, and even ignition and spontaneous combustion, which harms the entire vehicle and personal property.

Method used

An electric vehicle fuse box is designed, including a housing, a connecting mechanism and a locking mechanism, which fixes the fuse through a locking mechanism to prevent loosening and makes the housing stronger through a connecting mechanism.

Benefits of technology

It effectively prevents the safety plate from loosening due to vibration during riding, resulting in poor contact with the electric vehicle line, reducing the probability of personal property loss, and improving the usage rate and safety of the safety box.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric vehicle fuse boxes, in particular to an electric vehicle fuse box which comprises a shell, a connecting mechanism and a locking mechanism. The shell comprises an upper shell and a bottom shell, the upper shell and the bottom shell are connected through the connecting mechanism, and the locking mechanism is arranged in the shell and used for fixing a safety piece. The overall size of the shell of the safety box is designed to be smaller, so that the safety box can be conveniently installed at different positions of an electric vehicle, the utilization rate of the safety box is improved, the safety piece is fixed through the locking mechanism, and the situation that the safety piece is loosened due to vibration in the riding process, so that circuits of the whole electric vehicle are in poor contact, and the service life of the electric vehicle is prolonged is prevented. And the upper shell and the bottom shell of the fuse box are fixedly connected through the connecting mechanism, so that the fuse box is firmer in the use process and cannot be damaged.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle fuse boxes, in particular to an electric vehicle fuse box. Background Art

[0002] As a means of transportation for daily short-distance travel, the safety of electric vehicles has attracted attention from the country and consumers, and short-circuit protection devices are particularly important. Electric vehicles without short-circuit protection devices may be in a state of riding, stationary or charging. Once a short circuit occurs in the line, the cables may ignite and spontaneously combust, causing damage to the entire vehicle. In severe cases, it may even cause personal injury and property loss.

[0003] Currently, the short-circuit protection devices for electric vehicles on the market mostly use fuse plugs and plastic fuse boxes. When the whole vehicle is riding, the fuse is easily loosened due to the vibration of the whole vehicle, resulting in poor contact of the whole vehicle line, and even ignition and spontaneous combustion; at the same time, the loose fuse will heat up when the current is turned on, which is easy to cause the plastic fuse box to melt and deform, which will endanger the whole vehicle and cause personal and property losses. Utility Model Content

[0004] (I) The utility model provides an electric vehicle fuse box, which alleviates the technical problem in the prior art that the loose fuse leads to poor contact of the entire vehicle circuit.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, an embodiment of the utility model provides an electric vehicle fuse box, comprising a housing, a connecting mechanism and a locking mechanism;

[0007] The housing comprises an upper housing and a bottom housing, wherein the upper housing and the bottom housing are connected via the connecting mechanism, and the locking mechanism is arranged inside the housing and is used for fixing the safety piece.

[0008] Furthermore, a mounting position is provided on the lower surface of the bottom shell, and the locking mechanism is placed in the mounting position.

[0009] Furthermore, the locking mechanism includes a bolt, the bolt is arranged on the mounting position on the lower surface of the bottom shell, and the safety piece is sleeved on the bolt.

[0010] Furthermore, the locking mechanism also includes a positioning nut, and the positioning nut cooperates with the bolt thread to fasten the safety plate.

[0011] Furthermore, a through hole is provided on a side wall of one side of the bottom shell, and the through hole is used for arranging a lead-out wire of the fuse piece.

[0012] Furthermore, a wire laying groove is provided in the bottom shell at a position connected to the through hole, and the wire laying groove extends toward the inside of the bottom shell.

[0013] Furthermore, the connecting mechanism includes a connecting component, and the connecting component is correspondingly arranged on the side wall of the shell.

[0014] Furthermore, the connecting assembly includes a card slot and a card block, the side wall of the bottom shell is provided with a groove, the card block is arranged in the groove, and the card slot is arranged on the side wall of the upper shell 101 and is arranged corresponding to the position of the card block.

[0015] Furthermore, a sealing gasket is provided at the through hole.

[0016] Furthermore, the upper shell is also provided with a viewing hole.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides an electric vehicle fuse box, comprising a shell, a connecting mechanism and a locking mechanism; the shell comprises an upper shell and a bottom shell, the upper shell and the bottom shell are connected by the connecting mechanism, and the locking mechanism is arranged inside the shell to fix the fuse plate. The utility model reduces the overall size of the shell of the fuse box, thereby facilitating its installation at various different parts of the electric vehicle, improving the utilization rate of the fuse box, and then fixes the fuse plate through the locking mechanism to prevent the fuse plate from loosening due to vibration during riding, resulting in poor contact of the entire vehicle line of the electric vehicle, greatly reducing the probability of causing personal injury and property damage, and the upper shell and the bottom shell of the fuse box are also fastened and connected by the connecting mechanism, making it more firm during use and not damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall structure of an electric vehicle fuse box provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the right side structure of an electric vehicle fuse box provided by an embodiment of the utility model;

[0022] Figure 3 The present invention is a schematic diagram of the left side structure of an electric vehicle fuse box provided in an embodiment of the present invention.

[0023] icon:

[0024] 1-shell; 101-upper shell; 1011-viewing hole; 102-bottom shell; 1021-through hole; 1022-cable laying groove; 1023-groove;

[0025] 2-connecting mechanism; 201-connecting assembly; 2011-card slot; 2012-card block;

[0026] 3-locking mechanism; 301-bolt; 302-positioning nut;

[0027] 4-fuse piece; 401-lead wire. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] like Figures 1 to 3 As shown, the utility model provides an electric vehicle fuse box, including a shell 1, a connecting mechanism 2 and a locking mechanism 3; the shell 1 includes an upper shell 101 and a bottom shell 102, the upper shell 101 and the bottom shell 102 are connected by the connecting mechanism 2, and the locking mechanism 3 is arranged inside the shell 1 for fixing the fuse plate 4.

[0032] In this embodiment, the overall size of the fuse box shell 1 is designed to be smaller, thereby facilitating its installation in various parts of the electric vehicle and improving the utilization rate of the fuse box. The locking mechanism 3 is used to fix the fuse plate 4 to prevent the fuse plate 4 from loosening due to vibration during riding, thereby preventing poor contact of the entire vehicle line of the electric vehicle, thereby greatly reducing the probability of causing personal injury and property damage. The upper shell 101 and the bottom shell 102 of the fuse box are also fastened together by the connecting mechanism 2, making it more secure during use and not damaged.

[0033] According to one embodiment of the utility model, Figure 2 and Figure 3 As shown, a mounting position is provided on the lower surface of the bottom shell 102, and the locking mechanism 3 is placed in the mounting position.

[0034] In this embodiment, a mounting position is provided on the lower surface inside the bottom shell 102, wherein, optionally, two mounting positions are provided, which are equal in size and consistent in shape, and are arranged at intervals inside the bottom shell 102, for placing the locking mechanism 3 therein, and fixing the fuse plate 4 through the locking mechanism 3, thereby preventing the fuse from being loosened due to vibration during the use of the electric vehicle, resulting in poor contact of the entire vehicle circuit, and at the same time effectively extending the service life.

[0035] Among them, optionally, the shape of the installation position includes but is not limited to a hole shape, a groove shape or other shapes, which do not deviate from the design concept of the utility model and should belong to the protection scope of the utility model.

[0036] According to one embodiment of the utility model, Figure 2 and Figure 3 As shown, the locking mechanism 3 includes a bolt 301 , which is disposed at a mounting position on the lower surface of the bottom shell 102 , and the safety piece 4 is sleeved on the bolt 301 .

[0037] In this embodiment, further, the locking mechanism 3 includes a bolt 301 for sleeved with the safety plate 4, one end of the bolt 301 is fixed in the installation position, and optionally, a thread matching the bolt 301 can be provided inside the installation position, and the bolt 301 is fixed in the installation position by threaded cooperation, and then the safety plate 4 is sleeved on the bolt 301 from the other end, so that the safety plate 4 can be fixed on the bolt 301.

[0038] According to one embodiment of the utility model, Figure 2 and Figure 3 As shown, the locking mechanism 3 further includes a positioning nut 302 , and the positioning nut 302 is threadedly matched with the bolt 301 to fasten the safety plate 4 .

[0039] In this embodiment, in addition to the bolt 301, the locking mechanism 3 also includes a positioning nut 302 used in conjunction with the bolt 301. The positioning nut 302 cooperates with the thread on the end face of the bolt 301 to fasten the safety plate 4, fixing the safety plate 4 inside the fuse box so that it will not loosen due to vibration, thereby affecting the safety of use and preventing personal injury and property loss.

[0040] Optionally, a gasket may be provided between the bolt 301 and the positioning nut 302 . The provision of the gasket can effectively protect the safety plate 4 from being damaged during threaded engagement, thereby effectively extending the service life of the safety plate 4 .

[0041] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, a through hole 1021 is opened on the side wall of one side of the bottom shell 102, and the through hole 1021 is used for laying the lead wire 401 of the fuse piece 4.

[0042] In this embodiment, a through hole 1021 is opened on the side wall of the bottom shell 102 for laying the lead wire 401 of the safety piece 4, wherein, preferably, the through hole 1021 is arranged on the side wall on the opposite side of the two bolts 301, and the position of the through hole 1021 is directly connected to the installation position where the bolt 301 is placed.

[0043] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, a wire laying groove 1022 is provided in the bottom shell 102 at a position connected to the through hole 1021 , and the wire laying groove 1022 extends toward the inside of the bottom shell 102 .

[0044] In this embodiment, a wire laying groove 1022 is further provided inside the bottom shell 102. One end of the wire laying groove 1022 is connected to the through hole 1021, and the other end extends toward the inside of the bottom shell 102 and is directly connected to the installation position, so that the lead wire 401 of the safety piece 4 can smoothly pass through the bottom shell 102.

[0045] Optionally, the side wall where the through hole 1021 and the wire laying groove 1022 are located is set to a concave shape, which facilitates the lead-out wire 401 of the fuse piece 4 to be led out, increases the aesthetics, and facilitates the replacement of the lead-out wire 401 of the fuse piece 4.

[0046] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, the connection mechanism 2 includes a connection component 201 , and the connection component 201 is correspondingly arranged on the side wall of the housing 1 .

[0047] In this embodiment, a connecting component 201 is further provided on the side wall of the shell 1, and the connecting component 201 is correspondingly arranged on the side wall on the same side of the upper shell 101 and the bottom shell 102. Preferably, three groups of connecting components 201 are respectively arranged on the three side walls without through holes 1021, so that the upper shell 101 and the bottom shell 102 of the fuse box are fastened together on three sides to ensure its safety in use. It will not loosen due to vibration during use, thereby causing the fuse plate 4 to loosen and cause damage.

[0048] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, the connecting component 201 includes a card slot 2011 and a card block 2012 . A groove 1023 is provided on the side wall of the bottom shell 102 . The card block 2012 is arranged in the groove 1023 . The card slot 2011 is provided on the side wall of the upper shell 101 and is arranged corresponding to the position of the card block 2012 .

[0049] In this embodiment, the connecting component 201 is configured as a combination of a card slot 2011 and a card block 2012. The card slot 2011 is arranged on the side wall of the upper shell 101 and extends downward along the width direction of the upper shell 101. A groove 1023 corresponding to the size of the card slot 2011 is arranged on the bottom shell 102 corresponding to its extension direction. A card block 2012 is arranged inside the groove 1023. The card slot 2011 is fastened to the card hook of the card block 2012 to complete the fixation between the upper shell 101 and the bottom shell 102, thereby ensuring that it will not loosen during use.

[0050] Among them, optionally, the connection component 201 can also be other connection methods such as buckle connection or bolt connection, the purpose of which does not deviate from the design concept of the utility model and should belong to the protection scope of the utility model.

[0051] According to an embodiment of the present invention, a sealing gasket is provided at the through hole 1021 .

[0052] In this embodiment, a sealing ring is provided at the through hole 1021, which can not only prevent water but also extend the service life of the fuse box.

[0053] According to one embodiment of the utility model, Figure 1 As shown, the upper shell 101 is also provided with a viewing hole 1011 .

[0054] In this embodiment, a viewing hole 1011 is further provided on the upper shell 101, through which the user can directly check the interior, and can always know the usage status of the fuse box, and can immediately discover and replace the fuse 4 when it fails.

[0055] The number of viewing holes 1011 includes but is not limited to one, and can be appropriately increased or decreased according to factors such as actual usage.

[0056] Among them, optionally, the shape of the viewing hole 1011 can be square, rectangular or circular, etc., and its purpose does not deviate from the design concept of the present utility model and should belong to the protection scope of the present utility model.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric vehicle fuse box, characterized in that: It comprises a housing (1), a connecting mechanism (2) and a locking mechanism (3); The housing (1) comprises an upper housing (101) and a bottom housing (102), wherein the upper housing (101) and the bottom housing (102) are connected via the connecting mechanism (2), and the locking mechanism (3) is arranged inside the housing (1) and is used to fix the safety plate (4).

2. An electric vehicle fuse box according to claim 1, characterized in that: A mounting position is provided on the lower surface of the bottom shell (102), and the locking mechanism (3) is placed in the mounting position.

3. An electric vehicle fuse box according to claim 2, characterized in that: The locking mechanism (3) comprises a bolt (301), the bolt (301) being arranged on the mounting position on the lower surface of the bottom shell (102), and the safety piece (4) being sleeved on the bolt (301).

4. An electric vehicle fuse box according to claim 3, characterized in that: The locking mechanism (3) further comprises a positioning nut (302), wherein the positioning nut (302) is threadably matched with the bolt (301) to fasten the safety plate (4).

5. The electric vehicle fuse box according to claim 1, characterized in that: A through hole (1021) is provided on a side wall of one side of the bottom shell (102), and the through hole (1021) is used for arranging a lead wire (401) of the safety piece (4).

6. An electric vehicle fuse box according to claim 5, characterized in that: A wire laying groove (1022) is provided in the bottom shell (102) at a position connected to the through hole (1021), and the wire laying groove (1022) extends toward the inside of the bottom shell (102).

7. An electric vehicle fuse box according to claim 5, characterized in that: The connection mechanism (2) comprises a connection component (201), and the connection component (201) is correspondingly arranged on the side wall of the shell (1).

8. An electric vehicle fuse box according to claim 7, characterized in that: The connecting assembly (201) comprises a card slot (2011) and a card connection block (2012); a groove (1023) is provided on the side wall of the bottom shell (102); the card connection block (2012) is arranged in the groove (1023); the card slot (2011) is provided on the side wall of the upper shell (101) and is arranged corresponding to the position of the card connection block (2012).

9. The electric vehicle fuse box according to claim 5, characterized in that: A sealing gasket is provided at the through hole (1021).

10. An electric vehicle fuse box according to claim 1, characterized in that: The upper shell (101) is also provided with a viewing hole (1011).