A fuse access cable suitable for ultra-low resistance circuits

Abstract

The present invention relates to the field of cables, and in particular to a fuse access cable suitable for use in an ultra-low resistance circuit, comprising a wiring harness and a fuse holder, wherein the middle of the wiring harness is connected by the fuse holder, a socket is provided at the upper end of the fuse holder, a cover is connected to one side of the fuse holder, the cover is used to close the socket, a waterproof cover is movably provided on the cover, and the waterproof cover is used to close the gap after the cover and the socket are matched. The connection between the fuse and the wiring harness is closed by setting the fuse holder to avoid the intrusion of water vapor or oil droplets, and since the fuse is a consumable and the socket of the fuse holder is used as the insertion port of the fuse, the sealing of the cover and the socket is also particularly important. In order to prevent the gap after the cover and the socket are connected from being invaded by water vapor or oil droplets, the waterproof cover is provided to block it, so as to improve the waterproof and oil-proof performance and ensure the normal operation of the fuse in the ultra-low resistance circuit.

Description

Technical Field

[0001] The invention relates to the field of cables, and in particular to a fuse access cable suitable for an ultra-low resistance loop. Background Art

[0002] Ultra-low resistance circuits are often used in current protection, power management and other occasions, and are often set up in conjunction with fuses. Take the fuse device in the vehicle as an example. The fuse on the cable is simply inserted into the fuse holder. Although it is convenient for customers to disassemble and replace, there are also major hidden dangers. For example, the fuse is directly exposed to the outside and close to other materials. During the use of the vehicle, if there is an abnormal situation such as water leakage or oil leakage, if water or oil drips onto the fuse pins or the metal part of the fuse holder, it will cause oxidation of the fuse pins and shorten the service life. In severe cases, it may cause leakage, damage other products or cause safety accidents. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a waterproof and oil-proof fuse access cable suitable for an ultra-low resistance circuit.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fuse access cable suitable for an ultra-low resistance circuit, comprising a wiring harness and a fuse holder, the middle part of the wiring harness is connected by the fuse holder, a socket is provided at the upper end of the fuse holder, a cover is connected to one side of the fuse holder, the cover is used to close the socket, a waterproof cover is movably provided on the cover, and the waterproof cover is used to close the gap after the cover and the socket are matched.

[0005] The beneficial effect of the present invention is that the connection between the fuse and the wiring harness is sealed by arranging the fuse holder to avoid the invasion of water vapor or oil droplets. Since the fuse is a consumable item and the socket of the fuse holder is used as the insertion port of the fuse, the sealing of the cover and the socket is also particularly important. In order to prevent the gap between the cover and the socket from being invaded by water vapor or oil droplets, the waterproof cover is arranged to block it, so as to improve the waterproof and oil-proof performance and ensure the normal operation of the fuse in the ultra-low resistance circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of a fuse access cable suitable for an ultra-low resistance loop according to a specific embodiment of the present invention;

[0007] Figure 2 It is a structural schematic diagram of a fuse holder and a cover when the fuse holder is separated from the cable connected to the fuse in the ultra-low resistance circuit according to a specific embodiment of the present invention;

[0008] Figure 3A top view of the upper end of a fuse holder for connecting a fuse to a cable in an ultra-low resistance loop according to a specific embodiment of the present invention;

[0009] Figure 4 It is a structural schematic diagram of a waterproof cover for a fuse access cable in an ultra-low resistance loop according to a specific embodiment of the present invention;

[0010] Figure 5 It is a side view of a fuse holder and a cover after being matched, which are suitable for connecting a fuse to a cable in an ultra-low resistance loop according to a specific embodiment of the present invention.

[0011] Description of labels:

[0012] 1. Wiring harness; 2. Fuse holder; 21. Socket; 22. Socket; 23. First slot; 24. Anti-slip pattern;

[0013] 3. Cover; 31. Slide; 32. Second slot;

[0014] 4. Waterproof cover; 41. First connecting part; 411. First plug-in block; 42. Second connecting part; 421. Second plug-in block; 43. Sleeve connection part;

[0015] 5. Connecting belt. DETAILED DESCRIPTION

[0016] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0017] Please refer to Figures 1 to 5 A fuse access cable suitable for an ultra-low resistance circuit includes a wiring harness 1 and a fuse holder 2. The middle part of the wiring harness 1 is connected by the fuse holder 2. A socket 21 is provided at the upper end of the fuse holder 2. A cover 3 is connected to one side of the fuse holder 2. The cover 3 is used to close the socket 21. A waterproof cover 4 is movably provided on the cover 3. The waterproof cover 4 is used to close the gap between the cover 3 and the socket 21 after they are matched.

[0018] From the above description, it can be seen that the beneficial effect of the present invention is that the connection between the fuse and the wiring harness 1 is sealed by setting the fuse holder 2 to avoid the invasion of water vapor or oil droplets. The fuse is a consumable item and the socket 21 of the fuse holder 2 is used as the insertion port of the plug-in fuse. Therefore, the sealing of the cover 3 and the socket 21 is also particularly important. In order to prevent the gap between the cover 3 and the socket 21 from being invaded by water vapor or oil droplets after the cover 3 and the socket 21 are connected, the waterproof cover 4 is set to block it, so as to improve the waterproof and oil-proof performance and ensure the normal operation of the fuse in the ultra-low resistance circuit.

[0019] Furthermore, a socket 22 protrudes from the edge of the jack, the lower end of the cover 3 has an opening that is plugged into the socket 22, a slide groove 31 is provided on the cover 3, and the slide groove 31 extends from the upper end of the cover 3 to the lower end of the cover 3, and the waterproof cover 4 is movable along the slide groove 31.

[0020] It can be known from the above description that the socket 22 is used to position and guide the cooperation between the cover 3 and the socket 21 , and the slide groove 31 is used as a sliding guide for the waterproof cover 4 .

[0021] Furthermore, the waterproof cover 4 includes a first connecting portion 41 parallel to the upper end of the fuse holder 2, and the upper end of the fuse holder 2 is provided with a first slot 23 corresponding to the first connecting portion 41, and the first connecting portion 41 of the waterproof cover 4 is provided with a first plug block 411 toward the upper end of the fuse holder 2, and the first plug block 411 cooperates with the first slot 23.

[0022] It can be seen from the above description that after the waterproof sleeve 4 slides from the upper end of the cover 3 along the slide groove 31 to the lower end of the cover 3, its first connecting portion 41 fits with the upper end of the fuse holder 2, and the first plug block 411 of the first connecting portion 41 is inserted into the first slot 23, which connects the waterproof sleeve 4 and the fuse holder 2 while enhancing the waterproof effect, and the first plug block 411 serves as a water-blocking component for the gap between the first connecting portion 41 and the fuse holder 2.

[0023] Furthermore, the waterproof cover 4 includes a second connecting portion 42 that is parallel to and fitted with the side of the cover 3, the second connecting portion 42 is provided with a second plug block 421 toward the side of the cover 3, and the side of the cover 3 is provided with a second slot 32 parallel to the first slot 23 at one end thereof close to the upper end of the fuse holder 2, and the second plug block 421 cooperates with the second slot 32.

[0024] As can be seen from the above description, the second connection part 42 is arranged so that the first connection part 41 and the second connection part 42 are combined to form an approximately L-shaped structure, wherein the horizontal part is the first connection part 41, and the vertical part is the second connection part 42, and the second connection part 42 is parallel to the side of the cover 3. After the waterproof cover 4 slides from the upper end to the lower end of the cover 3, the first connection part 41 is plugged into the first slot 23, and at the same time, the second plug block 421 of the second connection part 42 is opposite to the second slot 32 on the side of the cover 3. The user moves the second connection part 42 toward The side of the cover 3 is pressed in so that the second plug block 421 cooperates with the second slot 32; the cooperation among the waterproof cover 4, the fuse holder 2 and the cover 3 is strengthened through the cooperation between the first socket 21 and the first slot 23 and the second plug block 421 and the second slot 32. At the same time, the first plug block 411 serves as a water-blocking component for the gap between the first connecting part 41 of the waterproof cover 4 and the upper end of the fuse holder 2, and the second plug block 421 serves as a water-blocking component for the gap between the second connecting part 42 of the waterproof cover 4 and the side of the cover 3, thereby achieving waterproof and oil-proofing in multiple positions.

[0025] Furthermore, it also includes a connecting belt 5, one end of which is connected to the side where the fuse holder 2 is connected to the wiring harness 1, and the other end of the connecting belt 5 is connected to the side of the adjacent cover 3. The waterproof cover 4 includes a sleeve portion 43, and the first connecting portion 41 and the second connecting portion 42 are connected to form a connecting ring. The side of the connecting ring close to the connecting belt 5 is connected by the sleeve portion 43, and the connecting belt 5 is bent and sleeved in the sleeve portion 43.

[0026] As can be seen from the above description, the connecting belt 5 is a component that connects the cover 3 and the fuse holder 2. In the actual injection molding process, the connecting belt 5, the cover 3 and the fuse holder 2 are formed in one piece; however, the connecting belt 5 will have a certain length after the cover 3 and the fuse holder 2 are matched, which makes it easy to pull the connecting belt 5 to drive the cover 3 to separate from the fuse holder 2 when repairing other components; through the setting of the sleeve part 43 of the waterproof cover 4, when the waterproof cover 4 slides from the upper end of the cover 3 to the lower end, the user can bend the connecting belt 5 through the sleeve part 43, and the sleeve part 43 fixes the connecting belt 5 to prevent it from being pulled.

[0027] Furthermore, the cover 3 includes a front side, a rear side, a left side and a right side, the connecting belt 5 is connected to the front side of the cover 3, the slide groove 31 is arranged on the rear side of the cover 3, and the left side and the right side are provided with a second slot 32 corresponding to the second plug block 421.

[0028] Furthermore, a side of the cover 3 close to the connection belt 5 is an inclined surface, and the inclined surface faces a side of the cover 3 away from the fuse holder 2 .

[0029] From the above description, it can be known that by setting the inclined surface on the side of the cover 3 close to the connecting belt 5, the cover 3 as a whole has a right-angled trapezoidal structure, and when the waterproof cover 4 slides, the distance between the inclined surface and the sleeve portion 43 will change, and the inclined surface is formed on the cover 3 so that the upper end of the cover 3 is smaller than the lower end of the cover 3. When the sleeve portion 43 slides, the original gap between the sleeve portion 43 and the upper end of the cover 3 decreases as the sleeve portion 43 slides, so that the connecting belt 5 can quickly penetrate the gap between the sleeve portion 43 and the side of the cover 3 when the sleeve portion 43 does not slide toward the lower end of the cover 3. As the sleeve portion 43 moves, the gap decreases, and relatively, the connecting belt 5 is pressed against the side of the cover 3 by the sleeve portion 43.

[0030] Furthermore, the distance between the end of the socket 22 close to the cover 3 and the upper end of the fuse holder 2 is greater than the distance between the second slot 32 and the upper end of the fuse.

[0031] It can be seen from the above description that when the connecting belt 5 is pulled, taking the case where the connecting belt 5 is pulled in the length direction of the wiring harness 1 as an example, the force applied when the connecting belt 5 is pulled is transmitted from the waterproof sleeve 4 to the cover 3, so that the cover 3 has a tendency to be pulled laterally. However, since the distance between the socket 22 and the upper end of the fuse holder 2 is greater than the distance between the second slot 32 and the upper end of the fuse holder 2, that is, the lateral force on the waterproof sleeve 4 when acting on the cover 3, will be transmitted to the side of the socket 22, and the socket 22 will act as a barrier to prevent the cover 3 from detaching from the fuse holder 2 under the lateral force.

[0032] Furthermore, the side surface of the fuse holder 2 is provided with anti-slip patterns 24 .

[0033] As can be seen from the above description, the anti-slip grooves 24 provided on the side of the fuse holder 2 facilitate the user to grasp the fuse holder 2 to release the fit between the cover 3 and the socket 21 and replace the fuse.

[0034] Reference Figures 1 to 5 , Embodiment 1 of the present invention is:

[0035] Application scenario of the present invention: Taking the fuse wire access cable in a car as an example, the vehicle may encounter abnormal conditions such as water leakage and oil leakage during use. If the leakage enters the fuse, it will affect its normal use. The present invention provides a fuse holder 2 and a cover 3, and the waterproof cover 4 strengthens the waterproofness of the gap between the two to ensure that the fuse is waterproof and oil-proof, prolong the service life, and ensure safe use.

[0036] like Figures 1 to 5 As shown, the fuse access cable of this embodiment is suitable for use in an ultra-low resistance circuit, and includes a wiring harness 1, a fuse holder 2, a cover 3 and a connecting belt 5.

[0037] like Figure 1 As shown, the middle part of the wiring harness 1 is connected by a fuse holder 2, a socket 21 is provided at the upper end of the fuse holder 2, a cover 3 is connected to one side of the fuse holder 2, the cover 3 is used to close the socket 21, a waterproof cover 4 is movably provided on the cover 3, and the waterproof cover 4 is used to close the gap after the cover 3 and the socket 21 are matched.

[0038] like Figure 2 and Figure 3 As shown, a socket 22 protrudes from the edge of the jack, the lower end of the cover 3 has an opening that is plugged into the socket 22, a slide groove 31 is provided on the cover 3, and the slide groove 31 extends from the upper end of the cover 3 to the lower end of the cover 3, and the waterproof cover 4 is movable along the slide groove 31.

[0039] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the waterproof cover 4 includes a first connecting portion 41 parallel to the upper end of the fuse holder 2, and the upper end of the fuse holder 2 is provided with a first slot 23 corresponding to the first connecting portion 41. The first connecting portion 41 of the waterproof cover 4 is provided with a first plug block 411 toward the upper end of the fuse holder 2, and the first plug block 411 cooperates with the first slot 23.

[0040] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the waterproof cover 4 includes a second connecting portion 42 which is parallel to and fitted with the side surface of the cover 3, the second connecting portion 42 is provided with a second plug block 421 facing the side surface of the cover 3, and the side surface of the cover 3 is provided with a second slot 32 which is parallel to the first slot 23 at one end thereof which is close to the upper end of the fuse holder 2, and the second plug block 421 cooperates with the second slot 32.

[0041] like Figure 1 and Figure 2 As shown, one end of the connecting belt 5 is connected to the side where the fuse holder 2 is connected to the wiring harness 1, and the other end of the connecting belt 5 is connected to the side of the adjacent cover 3. The waterproof cover 4 includes a sleeve portion 43, and the first connecting portion 41 and the second connecting portion 42 are connected to form a connecting ring. The side of the connecting ring close to the connecting belt 5 is connected by the sleeve portion 43, and the connecting belt 5 is bent and sleeved in the sleeve portion 43.

[0042] The cover 3 includes a front side, a rear side, a left side and a right side, the connecting belt 5 is connected to the front side of the cover 3, the slide groove 31 is arranged on the rear side of the cover 3, and the left side and the right side are provided with second slots 32 corresponding to the second plug-in block 421.

[0043] like Figure 4 As shown, specifically, the waterproof cover 4 is connected by a sliding part, a sleeve part 43 and a connecting ring, the connecting ring is composed of a first connecting part 41 and a second connecting part 42, the connecting ring corresponds to the left and right sides of the cover 3, the sliding part corresponds to the rear side of the cover 3 and has a slider extending toward the slide groove 31. The sleeve part 43 corresponds to the front side of the cover 3.

[0044] like Figure 1 and Figure 2 As shown, the side of the cover 3 close to the connecting strip 5 is an inclined surface, and the inclined surface faces the side of the cover 3 away from the fuse holder 2 .

[0045] The working principle of the present invention is as follows: when the cover 3 is matched with the fuse holder 2, the opening of the cover 3 is inserted into the socket 22 at the upper end of the fuse holder 2, and then the waterproof cover 4 originally located at the upper end of the cover 3 is moved toward the fuse holder 2, and the waterproof cover 4 is moved along the slide groove 31 on the rear side of the cover 3 until the first connection part 41 of the waterproof cover 4 abuts against the upper end of the fuse holder 2. At this time, the first connection part 41 is pressed so that the first plug 411 of the first connection part 41 is inserted into the first slot 23 on the fuse holder 2; at the same time, the second connection part 42 of the waterproof cover 4 is also opposite to the second slot 32 on the left and right sides of the cover 3, and the second plug 421 of the second connection part 42 is inserted into the second slot 32 on the cover 3 by pressing the second connection part 42.

[0046] The above completes the connection between the waterproof sleeve 4, the cover 3 and the fuse holder 2. At the same time, the waterproof sleeve 4 closes the gap between the cover 3 and the fuse holder 2. The first block serves as a water-blocking component for the gap between the first connecting portion 41 of the waterproof sleeve 4 and the upper end of the fuse holder 2. The second block serves as a water-blocking component for the gap between the second connecting portion 42 of the waterproof sleeve 4 and the cover 3, thereby achieving waterproof and oil-proofing at multiple positions.

[0047] At the same time, before the waterproof cover 4 moves, the connecting belt 5 can be bent and passed through the sleeve portion 43 of the waterproof cover 4 to prevent the connecting belt 5 from being pulled. The sleeve portion 43 is arranged at an angle to the front side of the cover 3, so that the distance between the sleeve portion 43 and the front side of the cover 3 can be reduced as the waterproof cover 4 slides, so that the sleeve portion 43 presses the connecting belt 5, thereby fixing the connecting belt 5.

[0048] In summary, the present invention provides a fuse access cable suitable for an ultra-low resistance circuit. A fuse holder is provided to seal the connection between the fuse and the wiring harness to avoid the intrusion of water vapor or oil droplets. Since the fuse is a consumable item and the socket of the fuse holder is used as the insertion port of the fuse, the sealing of the cover and the socket is also particularly important. In order to prevent the gap between the cover and the socket from being invaded by water vapor or oil droplets, a waterproof cover is provided to block the invasion, thereby improving the waterproof and oil-proof performance and ensuring the normal operation of the fuse in the ultra-low resistance circuit.

[0049] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fuse access cable suitable for use in an ultra-low resistance circuit, characterized in that: It includes a wiring harness and a fuse holder, wherein the middle part of the wiring harness is connected by the fuse holder, a socket is arranged at the upper end of the fuse holder, a cover is connected to one side of the fuse holder, the cover is used to close the socket, a waterproof cover is movably mounted on the cover, the waterproof cover is used to close the gap after the cover and the socket are matched; a socket is protruded from the edge of the socket, the lower end of the cover has an opening for plugging with the socket, a slide groove is arranged on the cover, the slide groove extends from the upper end of the cover to the lower end of the cover, and the waterproof cover is movable along the slide groove.

2. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 1, characterized in that: The waterproof cover includes a first connecting portion parallel to the upper end of the fuse holder, the upper end of the fuse holder is provided with a first slot corresponding to the first connecting portion, the first connecting portion of the waterproof cover is provided with a first plug-in block toward the upper end of the fuse holder, and the first plug-in block cooperates with the first slot.

3. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 2, characterized in that: The waterproof cover includes a second connection portion parallel to the side of the cover, the second connection portion is provided with a second plug block toward the side of the cover, and the end of the side of the cover close to the upper end of the fuse holder is provided with a second slot parallel to the first slot, and the second plug block cooperates with the second slot.

4. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 3, characterized in that: It also includes a connecting belt, one end of which is connected to a side of the fuse holder connected to the wiring harness, and the other end of the connecting belt is connected to the side of an adjacent cover. The waterproof cover includes a sleeve connection portion, the first connecting portion and the second connecting portion are connected to form a connecting ring, the connecting ring is connected to a side close to the connecting belt by the sleeve connection portion, and the connecting belt is bent and sleeved in the sleeve connection portion.

5. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 4, characterized in that: The cover includes a front side, a rear side, a left side and a right side, the connecting belt is connected to the front side of the cover, the sliding groove is arranged on the rear side of the cover, and the left side and the right side are provided with second slots corresponding to the second plug-in block.

6. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 4, characterized in that: The side of the cover close to the connection belt is an inclined surface, and the inclined surface faces the side of the cover away from the fuse holder.

7. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 4, characterized in that: The distance between one end of the socket close to the cover and the upper end of the fuse holder is greater than the distance between the second slot and the upper end of the fuse.

8. The fuse access cable suitable for use in an ultra-low resistance circuit according to claim 1, characterized in that: The side surface of the fuse holder is provided with anti-slip textures.

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