Fuse box
By designing the terminal position guarantee member in the fuse box and using the elastic arm and protruding structure to achieve correct positioning of the terminals, the problem of unstable positioning of the terminals in the existing fuse box is solved and the safety is improved.
Patent Information
- Application Number
- CN202420578327.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The existing direct plug-in fuse box lacks positioning members for terminals, which poses safety hazards.
A fuse box is designed including a base having a terminal accommodating opening and a terminal position guarantee member, the latter including a plastic substrate, a first and a second protruding structure. The first protruding structure consists of first and second elastic arms of different lengths, and is fixed to the base through a clamping connection, and the second protruding structure locks the terminals.
By setting the terminal position guarantee member, the correct installation and positioning of the terminals in the fuse box is ensured, which improves safety and avoids the problem of unstable terminal positioning.
Smart Images
Figure CN222762909U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile electrical equipment, in particular to a fuse box. Background Art
[0002] In the electrical system, the fuse box is an important electrical component that distributes current and provides protection for the subsequent module circuits. Usually, the fuse box is equipped with fuses, relays and terminals for power distribution, circuit protection and high current control. The existing plug-in fuse box does not have a component for positioning the terminals, so there are certain safety hazards. Utility Model Content
[0003] The embodiments of the present disclosure provide a fuse box to at least partially solve the problem of unstable terminal positioning.
[0004] The specific technical solutions provided by the embodiments of the present disclosure are as follows:
[0005] A fuse box is proposed, comprising a base with a terminal accommodating opening and a terminal position ensuring component installed outside the terminal accommodating opening to fix the terminal, the terminal position ensuring component comprising a plastic substrate, the plastic substrate being provided with at least one first protrusion structure and at least one second protrusion structure, the first protrusion structure comprising a first elastic arm and a second elastic arm arranged in a pair, a first length of the first elastic arm extending from the plastic substrate being different from a second length of the second elastic arm extending from the plastic substrate, wherein in a first position of the terminal position ensuring component, the first elastic arm is clamped and connected to the base; in a second position of the terminal position ensuring component, the second elastic arm is clamped and connected to the base, and the second protrusion structure locks the terminal.
[0006] Preferably, the base is provided with at least one component retaining cavity for inserting the first protrusion structure, and the relative inner surfaces of the component retaining cavity are provided with a first clamping point and a second clamping point, and a first horizontal plane perpendicular to the component insertion direction at which the first clamping point is located is lower than a second horizontal plane perpendicular to the component insertion direction at which the second clamping point is located.
[0007] Preferably, the first length is greater than the second length, and in the first position of the terminal position ensuring member, the first clamping point is clamped and connected to the first elastic arm, and in the second position of the terminal position ensuring member, the second clamping point is clamped and connected to the second elastic arm.
[0008] Preferably, a first pawl is provided at the extended end of the first elastic arm, and a second pawl is provided at the extended end of the second elastic arm. In the first position of the terminal position ensuring member, the first pawl is clamped and connected to the first clamping point, and the second pawl is in contact with the second clamping point; in the second position of the terminal position ensuring member, the second pawl is clamped and connected to the second clamping point, and the first pawl is separated from the first clamping point.
[0009] Preferably, the base is provided with at least one terminal accommodating cavity, and the terminal accommodating cavity has a first terminal accommodating opening and a second terminal accommodating opening which are arranged opposite to each other, the first terminal accommodating opening is for inserting the second protrusion structure, and the second terminal accommodating opening is for inserting the terminal.
[0010] Preferably, the inner wall of the terminal accommodating cavity is provided with a third elastic arm extending toward the first terminal accommodating opening, and the third elastic arm is provided with a third pawl. After the terminal is inserted into the terminal accommodating cavity, the third pawl clamps the terminal.
[0011] Preferably, an insertion space is formed between the third elastic arm and the inner wall of the terminal accommodating cavity. In the second position of the terminal position ensuring member, the second protrusion structure is inserted into the insertion space to squeeze the third elastic arm so that the third elastic arm abuts against the terminal.
[0012] Preferably, in the first position of the terminal position ensuring member, there is a vertical distance between the third horizontal plane where the plastic matrix is located and the top surface of the base having the first terminal accommodating opening; in the second position of the terminal position ensuring member, the plastic matrix is arranged close to the top surface.
[0013] Preferably, the second protrusion structure is a spring sheet extending perpendicularly to the plastic matrix, and the thickness of the spring sheet gradually decreases in a direction away from the plastic matrix.
[0014] Preferably, the second protrusion structure array is arranged on the plastic substrate.
[0015] According to the fuse box of this article, by setting a terminal position guarantee member, the correct installation and positioning of the terminal in the fuse box can be guaranteed. Specifically, the terminal position guarantee member has a first protrusion structure and a second protrusion structure, and the first protrusion structure includes a first elastic arm and a second elastic arm of different lengths. In the first position of the terminal position guarantee member, the first elastic arm is clamped and connected with the base, which can ensure that the terminal position guarantee member does not separate from the base; in the second position of the terminal position guarantee member, the second elastic arm is clamped and connected with the base, and the second protrusion structure locks the terminal, thereby locking the terminal for correct installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a three-dimensional exploded view of the fuse box of the preferred embodiment of this article.
[0018] Figure 2 for Figure 1 A three-dimensional view of the middle terminal position assurance component.
[0019] Figure 3 for Figure 1 A three-dimensional view of the middle terminal position assurance component from another perspective.
[0020] Figure 4 for Figure 1 A cross-sectional view of a fuse box, wherein the terminal position ensuring member is in a first position.
[0021] Figure 5 for Figure 1 A cross-sectional view of a fuse box, wherein the terminal position ensuring member is in a first position and the terminal is engaged with a third pawl.
[0022] Figure 6 for Figure 1 A cross-sectional view of a fuse box, wherein the terminal position ensuring member is in a second position.
[0023] Description of Reference Numerals
[0024] Base 10 Terminal position securing member 20
[0025] Terminal 30 Plastic base 200
[0026] The first protruding structure 201 and the second protruding structure 202
[0027] First elastic arm 203 Second elastic arm 204
[0028] The first pawl 205 and the second pawl 206
[0029] Component holding cavity 100 First clamping point 101
[0030] Second clamping point 102 Terminal receiving cavity 103
[0031] First terminal receiving opening 104 Second terminal receiving opening 105
[0032] The third elastic arm 106 and the third pawl 107
[0033] Vertical spacing L Component insertion direction D
[0034] Top surface 108 DETAILED DESCRIPTION
[0035] The preferred embodiments of the present disclosure are described below in conjunction with the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure. In addition, the embodiments and features in the embodiments of the present disclosure may be combined with each other if no conflict occurs.
[0036] like Figures 1 to 6 As shown, this article provides a fuse box of a preferred embodiment, including:
[0037] A base 10 having a terminal accommodating opening and a terminal position ensuring component 20 installed on the outside of the terminal accommodating opening to fix the terminal 30, the terminal position ensuring component 20 includes a plastic substrate 200, and the plastic substrate 200 is provided with at least one first protrusion structure 201 and at least one second protrusion structure 202, the first protrusion structure 201 includes a first elastic arm 203 and a second elastic arm 204 arranged in a pair, the first length of the first elastic arm 203 extending from the plastic substrate 200 is different from the second length of the second elastic arm 204 extending from the plastic substrate 200, wherein in the first position of the terminal position ensuring component 20, the first elastic arm 203 is clamped and connected to the base 10; in the second position of the terminal position ensuring component 20, the second elastic arm 204 is clamped and connected to the base 10, and the second protrusion structure 202 locks the terminal 30.
[0038] Thus, by providing the terminal position assurance member 20 , the correct installation and positioning of the terminal 30 in the fuse box can be ensured.
[0039] like Figure 1 and Figure 4 As shown, the base is provided with at least one component retaining cavity 100 for inserting the first protrusion structure 201, and the relative inner surfaces of the component retaining cavity 100 are provided with a first clamping point 101 and a second clamping point 102, and the first horizontal plane perpendicular to the component insertion direction D at which the first clamping point 101 is located is lower than the second horizontal plane perpendicular to the component insertion direction D at which the second clamping point 102 is located.
[0040] Specifically, Figure 2 As shown, the first length of the first elastic arm 203 is greater than the second length of the second elastic arm 204. In the first position of the terminal position assurance member 20, as shown in FIG. Figure 4As shown, the first clamping point 101 is clamped and connected with the first elastic arm 203. In the second position of the terminal position ensuring member 20, as shown in FIG. Figure 6 As shown, the second clamping point 102 is clamped and connected with the second elastic arm 204 .
[0041] More specifically, if Figure 2 and Figure 3 As shown, the first elastic arm 203 is provided with a first pawl 205 at the extended end, and the second elastic arm 204 is provided with a second pawl 206 at the extended end. In the first position of the terminal position assurance member 20, as shown in FIG. Figure 4 As shown, the first pawl 205 is connected with the first clamping point 101, and the second pawl 206 is in contact with the second clamping point 102; in the second position of the terminal position ensuring member 20, as shown in FIG. Figure 6 As shown, the second pawl 206 is clamped and connected with the second clamping point 102 , and the first pawl 205 is separated from the first clamping point 101 .
[0042] Since the first length of the first elastic arm 203 is greater than the second length of the second elastic arm 204, and the first horizontal plane perpendicular to the component insertion direction D at the first clamping point 101 is lower than the second horizontal plane perpendicular to the component insertion direction D at the second clamping point 102, during the process of the first protrusion structure 201 being inserted into the component holding cavity 100, the first pawl 205 on the first elastic arm 203 contacts the first clamping point 101 earlier and crosses the first clamping point 101 to be clamped and connected thereto, and at this time, the second pawl 206 contacts the second clamping point 102, which can ensure that the terminal position guarantee member 20 is supported in the first position and does not separate from the base 10. When the terminal position guarantee member 20 continues to be inserted downward and reaches the second position, the second pawl 206 crosses the second clamping point 102 to be clamped and connected thereto, and the first pawl 205 continues to move downward gradually away from the first clamping point 101.
[0043] In some embodiments, Figure 4 , Figure 5 and Figure 6 As shown, the base 10 is provided with at least one terminal accommodating cavity 103 , and the terminal accommodating cavity 103 has a first terminal accommodating opening 104 and a second terminal accommodating opening 105 arranged opposite to each other, the first terminal accommodating opening 104 is for inserting the second protrusion structure 202 , and the second terminal accommodating opening 105 is for inserting the terminal 30 .
[0044] Specifically, Figure 4 and Figure 5 As shown, the inner wall of the terminal accommodating cavity 103 is provided with a third elastic arm 106 extending toward the first terminal accommodating opening 104 , and the third elastic arm 106 is provided with a third pawl 107 . After the terminal 30 is inserted into the terminal accommodating cavity 103 , the third pawl 107 holds the terminal 30 .
[0045] More specifically, an insertion space is formed between the third elastic arm 106 and the inner wall of the terminal receiving cavity 103. When the terminal position ensuring member 20 is in the second position, as shown in FIG. Figure 6 As shown, the second protrusion structure 202 is inserted into the insertion space to press the third elastic arm 106 so that the third elastic arm 106 abuts against the terminal 30 .
[0046] In some embodiments, in the first position of the terminal position assurance member 20, as shown in FIG. Figure 4 As shown, there is a vertical distance L between the third horizontal plane where the plastic substrate 200 is located and the top surface of the base 10 having the first terminal receiving opening 104; in the second position of the terminal position ensuring member 20, as shown Figure 6 As shown, the plastic base 200 is disposed close to the top surface.
[0047] Preferably, if Figure 2 and Figure 3 As shown, the second protrusion structure 202 is a spring extending perpendicularly to the plastic matrix 200, and the thickness of the spring gradually decreases in the direction away from the plastic matrix 200. More preferably, the second protrusion structure 202 is arranged in an array on the plastic matrix 200. It can be understood that the plurality of second protrusion structures 202 are arranged in a one-to-one correspondence with each terminal receiving cavity 103 in the fuse box. The specific position of the terminal receiving cavity 103 is not limited herein.
[0048] According to the fuse box of this invention, by providing the terminal position assurance member 20 , the correct installation and positioning of the terminal 30 in the fuse box can be ensured.
[0049] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.
[0050] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.
[0051] It should also be understood that in the embodiments of this article, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0052] Specific embodiments are used in this article to illustrate the principles and implementation methods of this article. The description of the above embodiments is only used to help understand the methods and core ideas of this article. At the same time, for general technicians in this field, according to the ideas of this article, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on this article.
Claims
1. A fuse box, characterized in that: It includes a base with a terminal accommodating opening and a terminal position ensuring component installed on the outside of the terminal accommodating opening to fix the terminal, the terminal position ensuring component includes a plastic substrate, and the plastic substrate is provided with at least one first protrusion structure and at least one second protrusion structure, the first protrusion structure includes a first elastic arm and a second elastic arm arranged in a pair, the first length of the first elastic arm extending from the plastic substrate is different from the second length of the second elastic arm extending from the plastic substrate, wherein, in the first position of the terminal position ensuring component, the first elastic arm is clamped and connected to the base; in the second position of the terminal position ensuring component, the second elastic arm is clamped and connected to the base, and the second protrusion structure locks the terminal.
2. The fuse box according to claim 1, characterized in that: The base is provided with at least one component holding cavity for inserting the first protrusion structure, and the relative inner surfaces of the component holding cavity are provided with a first clamping point and a second clamping point, and a first horizontal plane perpendicular to the component insertion direction at which the first clamping point is located is lower than a second horizontal plane perpendicular to the component insertion direction at which the second clamping point is located.
3. The fuse box according to claim 2, characterized in that: The first length is greater than the second length. In the first position of the terminal position ensuring component, the first clamping point is clamped and connected to the first elastic arm. In the second position of the terminal position ensuring component, the second clamping point is clamped and connected to the second elastic arm.
4. The fuse box according to claim 3, characterized in that: A first pawl is provided at the extended end of the first elastic arm, and a second pawl is provided at the extended end of the second elastic arm. In the first position of the terminal position ensuring member, the first pawl is clamped and connected to the first clamping point, and the second pawl is in contact with the second clamping point; in the second position of the terminal position ensuring member, the second pawl is clamped and connected to the second clamping point, and the first pawl is separated from the first clamping point.
5. The fuse box according to claim 1, characterized in that: The base is provided with at least one terminal accommodating cavity, and the terminal accommodating cavity has a first terminal accommodating opening and a second terminal accommodating opening which are arranged opposite to each other, the first terminal accommodating opening is for inserting the second protrusion structure, and the second terminal accommodating opening is for inserting the terminal.
6. The fuse box according to claim 5, characterized in that: The inner wall of the terminal accommodating cavity is provided with a third elastic arm extending toward the first terminal accommodating opening, and the third elastic arm is provided with a third pawl. After the terminal is inserted into the terminal accommodating cavity, the third pawl clamps the terminal.
7. The fuse box according to claim 6, characterized in that: An insertion space is formed between the third elastic arm and the inner wall of the terminal accommodating cavity. In the second position of the terminal position ensuring member, the second protrusion structure is inserted into the insertion space to squeeze the third elastic arm so that the third elastic arm abuts against the terminal.
8. The fuse box according to claim 5, characterized in that: In the first position of the terminal position ensuring member, there is a vertical distance between the third horizontal plane where the plastic matrix is located and the top surface of the base having the first terminal accommodating opening; in the second position of the terminal position ensuring member, the plastic matrix is arranged close to the top surface.
9. The fuse box according to claim 1, characterized in that: The second protrusion structure is a spring sheet extending perpendicularly to the plastic matrix, and the thickness of the spring sheet gradually decreases in a direction away from the plastic matrix.
10. The fuse box according to claim 1, characterized in that: The second protrusion structure array is arranged on the plastic substrate.