CN220382037U - Relay box for fuse - Google Patents

Abstract

The utility model discloses a fuse relay box, wherein the fuse relay box comprises an upper cover, a lower shell, an electric appliance component and a water guide structure, wherein the electric appliance component comprises a fuse seat, a relay seat, corresponding terminals and the like; in addition, the electrical component also comprises a PCB format including a PCB board, an opposite plug-in interface and the like, and the electrical component is generally arranged at the bottom of the shell to ensure the stability of the electrical component because the electrical component needs to meet a certain waterproof and dustproof grade between the upper cover and the lower shell, but once the electrical component enters water vapor, accumulated water flow can cause the electrical component to burn out. The water entering the installation cavity can be deposited in the installation cavity, and finally is discharged to the outside of the lower shell through the water guide structure, so that the safety of an electric appliance component of the installation cavity is ensured.

Description

Relay box for fuse

Technical Field

The present utility model relates to the field of electrical fuse relay boxes, and more particularly to an electrical fuse relay box for a vehicle.

Background

The fuse relay boxes are divided into two main types according to the installation positions, one type is a cockpit fuse relay box which is installed in an instrument desk of the cockpit; one type is a chassis harness junction box that is mounted to a fuse relay box bracket on a frame rail. Because the chassis electrical junction box is in the vehicle chassis because of mounted position, compare the cockpit terminal box, chassis electrical junction box direct exposure is in the air, causes fuse and relay circuit breaker to burn out easily after intaking, and the vehicle can not normally continuous operation, along with commercial car demand greatly increases, also makes commercial car service environment become complicated various simultaneously, consequently, the waterproof performance of needs improvement fuse relay box urgently.

Disclosure of Invention

The utility model mainly aims to provide a fuse relay box, aiming at adding a water guide structure on the basis of the original protection, further improving the waterproof effect of the fuse relay box and adapting to various scenes.

To achieve the above object, the present utility model provides a fuse relay box comprising:

an upper cover;

the upper cover covers the lower shell to form a mounting cavity;

the electric appliance component is arranged in the mounting cavity; and

and the water guide structure is arranged at the bottom of the lower shell and is used for discharging water entering the installation cavity to the outside.

Optionally, the water guiding structure is configured as a water guiding groove, and the water guiding groove penetrates through the bottom of the lower shell.

Optionally, the bottom of the lower shell is obliquely arranged from two sides to the middle, and the water guide groove is arranged at the middle position of the bottom; and/or two water guide tanks are arranged, and the two water guide tanks are spaced.

Optionally, the guiding gutter includes the water guide section and with the play water section that the water guide section is linked together, the water inlet of water guide section orientation the installation cavity, the delivery port of play water section orientation inferior valve's outside, the axis of water guide section with the axis of play water section is crossing and is the angle.

Optionally, the water guide groove is further provided with a water blocking edge, the water blocking edge is arranged at the outlet of the water guide section and is matched with the cavity wall at the outlet to form a water leakage port, and the water leakage port is close to the water outlet of the water outlet section.

Optionally, the cavity wall of the water outlet section facing the water leakage port is obliquely arranged along the water outlet direction of the water outlet section.

Optionally, the electrical fuse relay box further includes a middle partition disposed in the installation cavity, the middle partition dividing the installation cavity into a first subchamber and a second subchamber, the first subchamber being located between the middle partition and the upper cover, the second subchamber being located between the middle partition and the lower case; the electrical component is mounted on the middle partition plate.

Optionally, the fuse relay box further comprises a waterproof rubber ring, the upper cover faces the periphery of the lower shell and is provided with a mounting groove, the waterproof rubber ring is embedded in the mounting groove, the end part of the lower shell is provided with an inserting section, and the inserting section is arranged in the mounting groove and abuts against the waterproof rubber ring.

Optionally, the mounting groove is far away from the tip of the cell wall of installation cavity and bends and be formed with the installation step, the tip of inferior valve still is equipped with the butt section, the butt section with the installation step butt.

Optionally, the lower shell is further provided with a fixing support, the fixing support and the lower shell are integrally formed, and the fixing support is used for fixing the lower shell and the outer part.

Optionally, the lower shell and the upper cover are provided with a clamping structure, and the lower shell and the upper cover are clamped and fixed through the clamping structure.

Optionally, a bolt mounting position is arranged between the lower shell and the upper cover, and the lower shell and the upper cover are fixed through bolts.

Optionally, the lower shell is further provided with a wire outlet hole, and the fuse relay box further comprises a waterproof rubber plug, and the waterproof rubber plug is embedded in the wire outlet hole.

According to the technical scheme, the upper cover, the lower shell, the electric appliance component and the water guide structure are adopted, and the upper cover covers the lower shell to form an installation cavity; the electrical component is arranged on the middle partition board; the water guide structure is arranged at the bottom of the lower shell and is used for discharging water entering the installation cavity to the outside. On the basis that traditional IP waterproof dustproof grade is satisfied to the fuse relay box, get into in the installation intracavity water under the action of gravity, collect and be water flow to the installation intracavity, discharge from the inferior valve in the water guide structure of bottom at last, and can not remain in the installation intracavity, lead to the situation that takes place the splash in the motion process, lead to electrical components to burn out, further improve waterproof performance, satisfy more operational environment needs.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the structure of an embodiment of a fuse relay box of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 from another view;

FIG. 3 is an exploded view of FIG. 2 at an angle;

FIG. 4 is a schematic cross-sectional view of the structure of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is an enlarged view of a portion of the water guiding structure of FIG. 4;

fig. 7 is a schematic structural view of an embodiment of the lower case of fig. 2.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The fuse relay boxes are divided into two main types according to the installation positions, one type is a cockpit fuse relay box which is installed in an instrument desk of the cockpit; one type is a chassis harness junction box that is mounted to a fuse relay box bracket on a frame rail. Because the chassis electrical junction box is in the vehicle chassis because of mounted position, compare the cockpit terminal box, chassis electrical junction box direct exposure is in the air, causes fuse and relay circuit breaker to burn out easily after intaking, and the vehicle can not normally continuous operation, along with commercial car demand greatly increases, also makes commercial car service environment become complicated various simultaneously, consequently, the waterproof performance of needs improvement fuse relay box urgently.

Therefore, the utility model provides the fuse relay box, which aims to increase a water guide structure on the basis of the original protection, further improve the waterproof effect of the fuse relay box and adapt to various scenes.

Referring to fig. 1 to 7, in an embodiment of the present utility model, the fuse relay box 10 includes an upper cover 100, a lower case 200, an electrical component 900, and a water guide structure 400, and the fuse relay box 10 generally includes the upper cover 100, the lower case 200, and the electrical component 900, such as a fuse holder, a relay holder, and corresponding terminals, disposed in the upper cover 100 and the lower case 200; in addition, the electrical component 900 further includes PCB formats such as PCB boards, opposite interfaces, etc., and the electrical component relay box 10 needs to meet a certain waterproof and dustproof level, so that tightness between the upper cover 100 and the lower case 200 is ensured, such as a waterproof glue, a sealing ring, etc., to prevent water vapor from entering the electrical component relay box 10, the upper cover 100 and the lower case 200 are fastened by screws, so that the upper cover 100 and the lower case 200 are pressed tightly, the electrical component 900 is usually disposed at the bottom of the housing, and stability of the electrical component 900 is ensured, but once the electrical component relay box 10 enters the water vapor, the accumulated water flow will cause burning of the electrical component 900, and in order to solve the problem, the water guiding structure 400 is disposed at the bottom of the lower case 200 to drain the water entering the installation cavity 230 to the outside. The water thus introduced into the installation cavity 230 is deposited in the installation cavity 230 and finally discharged to the outside of the lower case 200 through the water guide structure 400, thereby securing the safety of the electrical assembly 900 of the installation cavity 230.

In an ideal state, water flow is directly discharged from the water guide structure 400, normal use of the electrical apparatus assembly 900 is not affected, or a scheme of making certain waterproof isolation at the periphery of the electrical apparatus assembly 900 can be adopted, that is, water flow can not remain in the installation cavity 230 through arrangement of the water guide structure 400, and conditions such as shaking in a moving process are avoided, and the electrical apparatus assembly 900 is sputtered, so that burning is caused.

Referring to fig. 3 and 4, in particular, in the present embodiment, for the safety of the use of the electrical component 900 without taking excessive sealing measures for the electrical component 900, the electrical fuse relay box 10 further includes a middle partition 300, the middle partition 300 being disposed in the installation cavity 230, the middle partition 300 dividing the installation cavity 230 into a first sub-cavity 231 and a second sub-cavity 232, the first sub-cavity 231 being located between the middle partition 300 and the upper cover 100, the second sub-cavity 232 being located between the middle partition 300 and the lower case 200; the electrical assembly 900 is mounted to the septum 300.

With continued reference to fig. 3 and 4, in particular, the middle partition 300 is mounted to the lower case 200, the middle partition 300 partitions the mounting cavity 230 into a first subchamber 231 and a second subchamber 232, the first subchamber 231 is located between the middle partition 300 and the upper cover 100, and the second subchamber 232 is located between the middle partition 300 and the lower case 200; the electrical component 900 is mounted to the middle spacer 300; a certain gap is formed between the middle partition plate 300 and the side wall of the lower case 200, so that water vapor can flow downwards; or, the middle partition 300 may support the electrical apparatus 900 away from the position where water vapor is easy to enter, so as to avoid water vapor contact, and the water guiding structure 400 is disposed at the bottom of the lower case 200, so as to drain the water entering the second subchamber 232 to the outside. The main power consumption part of the resistor assembly is located in the first subchamber 231, part of the shell structure can penetrate through the middle partition 300 and be located in the second subchamber 232, and the second subchamber 232 of the resistor assembly is shared, so that the size of the fuse relay can be optimized, and miniaturization is facilitated. The water vapor thus introduced into the installation cavity 230 is deposited in the second sub-cavity 232 and finally discharged to the outside of the lower case 200 through the water guide structure 400, thereby securing the safety of the electrical component 900 of the installation cavity 230.

Without loss of generality, the middle spacer 300 may be a PCB board, and the middle spacer 300 may also be a support board for the installation of the power supply assembly 900, such as a plastic board or a sheet metal part, etc.

The mode of fixing middle partition plate 300 and inferior valve 200 is the joint fixed, and the joint breach has arranged supporting rib and fixture block on inferior valve 200's the lateral wall, and middle partition plate 300 is placed at the top of supporting rib, and through the joint breach joint on the fixture block of lateral wall, the rocking of middle partition plate 300 is avoided, guarantees the stability of installation.

Further, the middle spacer 300 may be further provided with screw holes, which are further fastened to the support ribs by screws.

The water guiding structure 400 may be an external water guiding member, such as a drain pipe, a water leakage cover, etc., and the water guiding structure 400 may also be a water guiding structure 400 formed by the lower casing 200 itself, such as a water guiding hole formed in a side wall or bottom, etc.

Referring to fig. 1 to 7, a specific arrangement of the water guiding structure 400 will be described.

Referring to fig. 4 and 6, further, the water guiding structure 400 is configured as a water guiding groove 410, and the water guiding groove 410 penetrates through the bottom of the lower case 200.

In an embodiment, the water guide groove 410 is configured as a plurality of water guide holes, and the plurality of water guide holes may be arranged at the bottom of the lower case 200, so that water at the bottom of the lower case 200 may flow out conveniently, but dust may be easily introduced.

In this embodiment, the water guiding tank 410 includes a water guiding section 411 and a water outlet section 412 connected to the water guiding section 411, the water inlet 430 of the water guiding section 411 faces the second subchamber 232, the water outlet 450 of the water outlet section 412 faces the outside of the lower shell 200, and the central axis of the water guiding section 411 and the central axis of the water outlet section 412 intersect at an angle. The water guide section 411 and the water outlet section 412 are in a 7-shaped cross section, so that water in the first subchamber 231 can flow out of the water guide groove 410, and external dust is prevented from entering the installation cavity 230 from the water guide groove 410.

Specifically, in order to more facilitate the collection of the water flow, the bottom of the lower case 200 is inclined from two sides to the middle direction, the water guiding groove 410 is disposed at the middle position of the bottom, the bottom of the lower case 200 corresponds to a bowl shape, and the water flow is collected at the middle position by the inclined slopes of the two sides due to the gravity, thus entering the water guiding groove 410, and is discharged from the water guiding groove 410 to the outside.

Specifically, two water guiding grooves 410 are provided, and the two water guiding grooves 410 are spaced apart. The water inlet 430 of the water guiding section 411 of the water guiding tank 410 may be extended along the length direction of the bottom of the lower shell 200, and two water outlet sections 412 are provided; only two water guide grooves 410 may be provided, and water inlets 430 of the water guide section 411 may be provided at both side positions of the bottom of the lower case 200.

Further, the water guiding section 411 and the water outlet section 412 are in a 7-shaped cross section, so that the water flowing out of the water guiding section 411 and the water flowing out of the water outlet section 412 can flow out of the water outlet section 412 more smoothly, the water guiding tank 410 is further provided with a water blocking edge 420, the water blocking edge 420 is arranged at the outlet of the water guiding section 411 and is matched with the cavity wall at the outlet to form a water leakage port 440, and the water leakage port 440 is close to the water outlet 450 of the water outlet section 412. Thus, water flows from the inclined bottom wall of the lower case 200 into the water inlet 430, enters the water guide section 411 and is then blocked by the water blocking edge 420 toward the side closer to the water outlet 450.

Specifically, the wall of the water outlet section 412 facing the water drain port 440 is inclined along the direction of the water outlet 450 of the water outlet section 412, so that the water flow is prevented from remaining, and the water flow can be ensured to flow out from the water outlet section 412 to the outside under the action of weight.

Referring to fig. 1 to 4, the above-described water guide structure 400 is required to improve the sealability between the upper cover 100 and the lower cover of the fuse relay box 10 on the premise that the fuse relay box 10 has a certain sealability, and the sealing manner of the upper cover 100 and the lower cover is described below in an embodiment of the present utility model.

Referring to fig. 3 and 4, in order to improve the waterproof performance of the fuse relay box 10, the fuse relay box 10 further includes a waterproof rubber ring 500, the upper cover 100 is provided with a mounting groove 110 toward the periphery of the lower case 200, the waterproof rubber ring 500 is embedded in the mounting groove 110, the end of the lower case 200 is provided with a plugging section 210, and the plugging section 210 is disposed in the mounting groove 110 and abuts against the waterproof rubber ring 500.

Referring to fig. 4, further, an end of the mounting groove 110 away from the groove wall of the mounting cavity 230 is bent to form a mounting step 120, and an end of the lower case 200 is further provided with an abutment section 220, and the abutment section 220 abuts against the mounting step 120.

The abutting section 220 and the inserting section 210 are in a 'cross shape', the mounting groove 110 and the mounting step 120 form a roundabout embedded structure with the end part of the lower shell 200, a first waterproof structure is formed through the mounting step 120 and the abutting section 220, a second waterproof structure is formed through the waterproof rubber ring 500 and the inserting section 210, and the sealing performance between the upper cover 100 and the lower shell 200 is ensured.

Specifically, in order to ensure the fastening effect between the upper cover 100 and the lower cover 200, the lower cover 200 and the upper cover 100 are provided with a fastening structure 250, the lower cover 200 and the upper cover 100 are fastened and fixed by the fastening structure 250, a fastening groove is respectively formed in the front side and the opposite rear side of the lower cover 200, the upper cover 100 is correspondingly provided with a fastener at a corresponding position, during installation, the snap structure between the upper cover 100 and the lower cover 200 corresponds to the fastening groove, the upper cover 100 and the lower cover 200 are fixed, the waterproof rubber ring 500 adopts waterproof cotton and a rubber pad, and the upper cover 100 is installed more accurately due to the arrangement of the snap structure, so that the waterproof performance of the waterproof cotton and the rubber pad is improved more favorably.

Further, there are bolt mounting locations 260 between the lower case 200 and the upper cover 100, and bolt holes are provided at four corners of the upper cover 100, and the lower case 200 is fastened between the upper cover 100 by bolts, so that a compression effect between the lower case 200 and the upper cover 100 is further ensured, and thus, the sealing performance of the fuse relay box 10 is ensured, and the fuse relay box is adaptable to various environments. In particular, the tapped hole between the lower case 200 and the upper cover 100 is made of iron built-in material, which is more durable and has a longer life, and the use of a special bolt and nut is more advantageous for theft prevention.

Further, the lower case 200 is further provided with a wire outlet hole 240, and the fuse relay box 10 further includes a waterproof rubber stopper 600, and the waterproof rubber stopper 600 is embedded in the wire outlet hole 240. More particularly, the waterproof rubber plug 600 is made of rubber, and the waterproof rubber plug 600 is provided with a plurality of waterproof grooves, so that the sealing effect on the wire outlet 240 is ensured, and the sealing performance of the fuse relay box 10 is ensured.

Referring to fig. 1 to 7, further, in order to fix the fuse relay box 10 stably, the lower case 200 is further provided with fixing brackets 700, the fixing brackets 700 are provided with three fixing brackets 700, the three fixing brackets 700 are arranged in a delta shape, the fixing brackets 700 are used for fixing the lower case 200 and the external part, the fixing brackets 700 and the lower case 200 are integrally arranged, and the delta-arranged fixing brackets 700 are strong in stability, so that the risk of vibration detachment of the fuse relay box is avoided. Specifically, the triangle here means that the upper end of one side of the shell is provided with two fixing brackets 700, and the lower end is provided with one fixing bracket 700; in other embodiments, two fixing brackets 700 may be provided at the upper end of one side and two fixing brackets at the lower end; one or two fixing brackets 700 may be disposed at one side, and one or two fixing brackets 700 may be disposed at the lower end of the opposite side, and in particular, the three fixing brackets 700 may be disposed to ensure stable installation, and fewer fixing points are required compared with more than three schemes, and more firm fixing is required compared with less than two schemes.

Referring to fig. 3 and 4, further, in order to secure the stability of the electrical component 900 inside the electrical fuse relay box 10, the electrical fuse relay box 10 further includes a secondary lock mechanism 800, the secondary lock mechanism 800 is provided on the middle partition 300, and the secondary lock mechanism 800 is used to assist in fixing the connector; the secondary lock mechanism 800 of the connector refers to an additional safety mechanism of the connector, which can ensure connection stability and safety of the connector during insertion and extraction. In some cases, the original fixing mechanism of the connector may have a damping function or an elastic characteristic, so that the stability of the connector cannot be completely guaranteed. While adding the secondary lock mechanism 800 can avoid these problems. In addition, the secondary lock mechanism 800 can also improve the waterproof and dustproof performance of the connector, ensuring the reliability and long life of the connector. Secondary locks typically include an additional safety feature and a locking device that may be used to re-secure the connector after insertion, preventing the connector from being inadvertently pulled out or shaken loose during use.

Referring to fig. 1, further, in order to prevent damage to the fuse relay box due to stepping, the upper cover 100 and the lower case 200 are colored in bright and easily recognizable colors such as red, yellow, and blue; the colors of the upper cover 100 and the lower case 200 may be different, and at the same time, the upper cover 100 is marked with a mark prohibiting the tread.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A fuse relay box, comprising:

an upper cover;

the upper cover covers the lower shell to form a mounting cavity;

the electric appliance component is arranged in the mounting cavity; and

and the water guide structure is arranged at the bottom of the lower shell and is used for discharging water entering the installation cavity to the outside.

2. The electrical fuse relay box of claim 1, wherein the water guide structure is configured as a water guide groove penetrating through a bottom of the lower case.

3. The electrical fuse relay box of claim 2, wherein the bottom of the lower case is inclined from both sides to the middle, and the water guide groove is provided at the middle position of the bottom; and/or two water guide tanks are arranged, and the two water guide tanks are spaced.

4. A fuse relay box according to claim 3, wherein the water guide groove includes a water guide section and a water outlet section communicating with the water guide section, a water inlet of the water guide section faces the installation cavity, a water outlet of the water outlet section faces an outside of the lower case, and a central axis of the water guide section and a central axis of the water outlet section intersect at an angle.

5. The electrical fuse relay box of claim 4, wherein the water guide groove is further provided with a water blocking edge, the water blocking edge is arranged at the outlet of the water guide section and cooperates with the cavity wall at the outlet to form a water leakage port, and the water leakage port is close to the water outlet of the water outlet section.

6. The electrical fuse relay box of claim 5, wherein a wall of the water outlet section facing the water leakage port is inclined in a water outlet direction of the water outlet section.

7. The electrical fuse relay box of claim 1, further comprising a middle partition disposed within the mounting cavity, the middle partition dividing the mounting cavity into a first subchamber and a second subchamber, the first subchamber being located between the middle partition and the upper cover, the second subchamber being located between the middle partition and the lower housing; the electrical component is mounted on the middle partition plate.

8. The electrical fuse relay box of claim 1, further comprising a waterproof rubber ring, wherein the upper cover is provided with a mounting groove toward the periphery of the lower case, the waterproof rubber ring is embedded in the mounting groove, the end of the lower case is provided with a plugging section, and the plugging section is placed in the mounting groove and abuts against the waterproof rubber ring.

9. The electrical fuse relay box of claim 8, wherein an end of the mounting groove remote from a groove wall of the mounting cavity is bent to form a mounting step, and an end of the lower case is further provided with an abutment section which abuts against the mounting step.

10. The electrical fuse relay box of claim 1, wherein said lower case is further provided with a fixing bracket integrally formed with said lower case, said fixing bracket being for fixing said lower case to an outer member; and/or the lower shell and the upper cover are provided with clamping structures, and the lower shell and the upper cover are clamped and fixed through the clamping structures; and/or a bolt mounting position is arranged between the lower shell and the upper cover, and the lower shell and the upper cover are fixed through bolts; and/or, the lower shell is also provided with a wire outlet hole, the fuse relay box further comprises a waterproof rubber plug, and the waterproof rubber plug is embedded in the wire outlet hole.