CN219498313U - Charger shell with waterproof breakage-proof lead terminal - Google Patents

Abstract

The utility model relates to a lead terminal, in particular to a charger shell with waterproof and breakage-proof lead terminals, which is suitable for simple installation, low in cost and good in waterproof, pulling-proof and bending-proof effects.

Description

Charger shell with waterproof breakage-proof lead terminal

Technical field:

the utility model relates to a lead terminal, in particular to a charger shell with a waterproof and breakage-proof lead terminal, which is suitable for being simply and conveniently installed, low in cost and good in waterproof, pulling-proof and bending-proof effects.

The background technology is as follows:

the charger completes the charging operation of various batteries through the built-in charging circuit, has more use environments and is often applied to outdoor, field and high-temperature and high-humidity industrial processing conditions, so that the heat dissipation and the waterproof treatment of the charger are performed, and the service life of the whole machine is obviously influenced.

The existing battery charger shell adopts a box-type shell, in order to ensure heat dissipation efficiency, a plurality of heat dissipation fins are arranged on the shell, a heat dissipation fan is further arranged in the box-type shell, and electronic devices are arranged in the box-type shell. The lead wire hole on the box casing needs to be waterproof treatment, adopts waterproof sealing circle, waterproof adhesive tape cooperation to have the lead wire terminal of swelling portion to realize at present, specifically speaking, the lead wire terminal that thick rubber made is established to the cover on the cable that draws outward at present, is equipped with swelling portion on the lead wire terminal, and swelling portion external diameter is showing and is greater than the lead wire hole internal diameter, through the interference fit of swelling portion and lead wire hole, accomplishes the spacing to cable tip, prevents that the cable from being pulled and dragging, breaks away from inside electrical circuit, sets up waterproof sealing circle or beats waterproof glue on the lead wire hole and realizes waterproofly.

The existing lead terminal is not reliably connected with the shell, so that in the long-term use process, the traction cable is easy to cause electric circuit damage and the service life of the product is influenced; secondly, the waterproof effect of the lead hole is poor, and high-temperature humid air or water mist easily invades the charging motor shell to damage electric components.

The utility model comprises the following steps:

aiming at the defects and shortcomings in the prior art, the utility model provides the charger shell with the waterproof and breakage-proof lead terminal, which has the advantages of reasonable structure, simplicity and convenience in assembly and capability of remarkably improving the reliability and the service life of a product.

The utility model is achieved by the following measures:

the utility model provides a battery charger casing with waterproof breakage-proof lead terminal, sets up cable and draws out the through-hole on the casing, its characterized in that, the casing inboard corresponds cable and draws out the through-hole department and is equipped with the surrounding board, surrounding board and shells inner wall and casing bottom plate enclose and establish and be the open cavity in upper end, set up the cable through-hole that sets up relatively with cable drawing out the through-hole on the surrounding board, after the cable cover is established lead terminal, extend outside the casing along the cable drawing out the through-hole, wherein lead terminal is located in the cavity, pour into the sealant in the cavity.

The lead terminal is provided with the sleeve-shaped main body, and the outer diameter of the lead terminal is not smaller than the inner diameters of the cable leading-out through hole and the cable through hole, so that interference fit with the cable leading-out through hole and the cable through hole is realized.

In order to further ensure that the lead terminal is limited in the cavity, the clamp is clamped on the outer wall of the lead terminal and is in a ring shape with a notch, and the clamp is far larger than the inner diameter of the cable lead through hole and the cable through hole after being spread, so that the lead terminal is prevented from falling out of the cavity in a pulling state.

According to the utility model, the clamping structure matched with the lead terminal is arranged on the shell corresponding to the cable outlet through hole in the circumferential direction, the clamping structure is a groove or a convex rib, the shell is further provided with the groove along the cable outlet through hole in the circumferential direction, the outer wall of the lead terminal is provided with a boss or a convex rib matched with the groove, and the boss or the convex rib is embedded with the groove to fix the relative position of the lead terminal and the shell, so that the waterproof layer formed by sealing glue in the shell is prevented from being damaged due to pulling the cable.

In the clamping structure for matching the shell and the lead terminal, the boss or the convex rib on the outer wall of the lead terminal is encircled to be square, and the square groove which is matched with the square boss or the convex rib is formed in the shell, so that the lead terminal is prevented from rotating in the cable lead through hole, and the fixing stability of the cable bundle is ensured.

The lead terminal is provided with an inner end arranged in the shell, a clamping part matched with the shell and an outer end arranged outside the shell from front to back, wherein the inner end, the clamping part and the outer end are of an injection molding integrated structure, the outer diameter of the outer end is gradually reduced along with the outward extension of the lead terminal, namely the wall thickness of the lead terminal is gradually reduced, so that the outer end can bend and swing along with a cable, and further, a plurality of grooves perpendicular to the length direction of the cable can be formed in the outer wall of the outer end, so that the flexibility of the outer end part is further improved.

In order to further improve the fixing stability of the lead terminal and the shell, the outer wall of the lead terminal is provided with a plurality of annular bosses or ribs or grooves which are used for being matched with cable through holes on the surrounding baffle plates, the bosses or ribs and the cable through holes form interference fit, and the bosses, the ribs or the grooves are arranged on the outer wall of the inner end head of the lead terminal.

Compared with the prior art, the sealing layer is formed in the cavity by filling the sealant, so that external water vapor can be effectively prevented from entering the shell along the cable leading-out through hole, in addition, the sealant layer can improve the fixing stability of the cable and the lead terminal and the shell, and prevent the damage of internal devices caused by dragging the cable.

Description of the drawings:

fig. 1 is a schematic view of the present utility model in an exploded state.

Fig. 2 is a schematic view of the structure of the lead terminal in the present utility model.

Fig. 3 is a cross-sectional view of a construction of the present utility model.

Reference numerals: the cable guide device comprises a shell 1, a cable guide through hole 2, a surrounding baffle 3, a cable through hole 4, a lead terminal 5, a clamp 6, a groove 7, an inner end 8, a clamping part 9 and an outer end 10.

The specific embodiment is as follows:

the utility model will be further described with reference to the drawings and examples.

Example 1:

as shown in fig. 1, this example proposes a charger casing with waterproof breakage-proof lead terminals, a cable outlet through hole 2 is formed in the casing 1, a surrounding baffle 3 is disposed at a position corresponding to the cable outlet through hole on the inner side of the casing 1, the surrounding baffle 3, the inner wall of the casing and the bottom plate of the casing are surrounded to form a cavity with an open upper end, a cable through hole 4 opposite to the cable outlet through hole is formed in the surrounding baffle 3, after the lead terminals 5 are sleeved on the cable, the cable extends to the outside of the casing 1 along the cable outlet through hole 2, wherein the lead terminals 5 are located in the cavity, and sealant is poured into the cavity;

the lead terminal 5 in this example has a sleeve-shaped main body, and the outer diameter of the lead terminal 5 is not smaller than the inner diameters of the cable lead-out through hole 2 and the cable through hole 4, so as to realize interference fit with the cable lead-out through hole 2 and the cable through hole 4; in order to further ensure that the lead terminal 5 is limited in the cavity, a clamping hoop 6 is clamped on the outer wall of the lead terminal 5, the clamping hoop 6 is in a ring shape with a notch, and the inner diameters of the cable lead through hole 2 and the cable through hole 4 are far larger than those of the cable through hole 4 after the clamping hoop 6 is used for being spread, so that the lead terminal 5 cannot be separated from the cavity in a pulling state;

the casing 1 is provided with a clamping structure matched with the lead terminal 5 in the circumferential direction corresponding to the cable lead through hole 2, the clamping structure is a groove or a convex rib, the casing 1 is further provided with a groove 7 in the circumferential direction along the cable lead through hole, the outer wall of the lead terminal 5 is provided with a boss or a convex rib matched with the groove 7, and the boss or the convex rib is embedded with the groove to fix the relative position of the lead terminal and the casing, so that a waterproof layer formed by sealant in the casing is prevented from being damaged due to pulling the cable; further, in the clamping structure of the shell and the lead terminal 5, the boss or the convex rib on the outer wall of the lead terminal is encircled to be square, and the shell 1 is provided with a groove which is matched with the boss or the convex rib which is encircled to be square and is encircled to be square, so that the lead terminal is ensured not to rotate in the lead through hole of the cable, and the fixing stability of the cable bundle is ensured;

as shown in fig. 2, the lead terminal 5 is provided with an inner end 8 arranged in the shell, a clamping component 9 matched with the shell and an outer end 10 arranged outside the shell from front to back, the inner end, the clamping component and the outer end are of an injection molding integrated structure, the outer diameter of the outer end 10 gradually decreases along with the outward extension of the lead terminal 5, namely the wall thickness of the lead terminal 5 gradually decreases, so that the outer end 10 can bend and swing along with a cable, and a plurality of grooves perpendicular to the length direction of the cable can be further arranged on the outer wall of the outer end 10, so that the flexibility of the outer end 10 is further improved;

in order to further improve the fixing stability of the lead terminal 5 and the shell 1, a plurality of annular bosses or ribs or grooves are arranged on the outer wall of the lead terminal 5 and used for being matched with the cable through holes 4 on the surrounding baffle plate 3, interference fit is formed between the bosses or ribs and the cable through holes 4, and the bosses, the ribs or the grooves are arranged on the outer wall of the inner end head 8 of the lead terminal 5.

Compared with the prior art, the utility model has the advantages that the cavity is independently arranged in the shell 1 near the cable outlet through hole 2, the sealing layer is formed in the cavity by pouring the sealant, so that external water vapor can be effectively prevented from entering the shell 1 along the cable outlet through hole, in addition, the sealing layer can improve the fixing stability of the cable and the lead terminal 5 and the shell 1, the damage of internal devices caused by dragging the cable is avoided, in order to further improve the positioning stability of the cable, the clamping structure is arranged on the shell 1 and the lead terminal 5, the lead terminal 5 cannot rotate, the wire harness in the lead terminal 5 cannot rotate, the lead terminal part exposed outside the shell 1 is provided with the outer end 10 with excellent flexibility, the cable is guided out for providing the bending and bending resistance guarantee during equipment installation, the problems of easy abrasion and cracking at the cable outlet of the traditional equipment are avoided, and the utility model has the remarkable advantages of reasonable structure, good sealing and waterproof effects, the tensile resistance and bending resistance of the related cable and the like.

Claims (9)

1. The utility model provides a battery charger casing with waterproof breakage-proof lead terminal, sets up cable and draws out the through-hole on the casing, its characterized in that, the casing inboard corresponds cable and draws out the through-hole department and is equipped with the surrounding board, surrounding board and shells inner wall and casing bottom plate enclose and establish and be the open cavity in upper end, set up the cable through-hole that sets up relatively with cable drawing out the through-hole on the surrounding board, after the cable cover is established lead terminal, extend outside the casing along the cable drawing out the through-hole, wherein lead terminal is located in the cavity, pour into the sealant in the cavity.

2. The battery charger housing with waterproof breakage-proof lead terminal of claim 1, wherein the lead terminal has a sleeve-like body, and an outer diameter of the lead terminal is not smaller than an inner diameter of the cable exit through hole and the cable through hole, thereby achieving an interference fit with the cable exit through hole and the cable through hole.

3. The battery charger housing with waterproof and breakage-proof lead terminals as claimed in claim 1, wherein the clip is sandwiched on the outer wall of the lead terminal, and the clip is ring-shaped with a notch.

4. The battery charger housing with the waterproof breakage-proof lead terminal according to claim 1, wherein a clamping structure matched with the lead terminal is circumferentially arranged in the housing corresponding to the cable leading-out through hole, and the clamping structure is a groove or a convex rib.

5. The battery charger housing with the waterproof breakage-proof lead terminal according to claim 4, wherein grooves are formed in the housing along the circumference of the cable outlet through hole, bosses or ribs matched with the grooves are formed on the outer wall of the lead terminal, and the fixing of the relative positions of the lead terminal and the housing is achieved through the fact that the bosses or the ribs are embedded with the grooves.

6. The battery charger housing with waterproof breakage-proof lead terminals as claimed in claim 4, wherein in the clamping structure of the housing and the lead terminals, the boss or the convex rib of the outer wall of the lead terminal is round and square, and the housing is provided with a round and square groove matched with the round and square boss or convex rib.

7. The battery charger housing with the waterproof breakage-proof lead terminal according to claim 1, wherein the lead terminal is respectively an inner end arranged in the housing, a clamping part matched with the housing and an outer end arranged outside the housing from front to back, the inner end, the clamping part and the outer end are of an injection-molded integrated structure, and the outer diameter of the outer end gradually decreases along with the outward extension of the lead terminal, namely the wall thickness of the lead terminal gradually decreases.

8. The battery charger housing with waterproof and breakage-proof lead terminals as claimed in claim 7, wherein a plurality of grooves perpendicular to the length direction of the cable are provided on the outer wall of the outer end.

9. The battery charger housing with the waterproof and breakage-proof lead terminal according to claim 1, wherein a plurality of annular bosses or ribs or grooves are arranged on the outer wall of the lead terminal and are used for being matched with cable through holes on the surrounding baffle plate, interference fit is formed between the bosses or ribs and the cable through holes, and the bosses, the ribs or the grooves are arranged on the outer wall of the inner end head of the lead terminal.