CN114172312B

CN114172312B - Fan junction box structure

Info

Publication number: CN114172312B
Application number: CN202111571595.2A
Authority: CN
Inventors: 庄礼帅; 陈灵超
Original assignee: Zhejiang Xingyi Ventilator Electrical Appliance Co ltd
Current assignee: Zhejiang Xingyi Ventilator Electrical Appliance Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-12-02
Anticipated expiration: 2041-12-21
Also published as: CN114172312A

Abstract

The invention provides a fan junction box structure, which solves the problem that the existing fan junction box is inconvenient to maintain. The fan comprises a case, the junction box comprises a box body fixed in the case, components arranged in the box body and a cover plate arranged outside the case, an operation opening facing an inner cavity of the box body is formed in the wall of the case, the cover plate covers the operation opening, a support plate is vertically arranged in the box body, a rotating shaft is horizontally and rotatably arranged in the box body, the upper end of the support plate is fixedly connected with the cover plate, and the rotating shaft is arranged close to the operation opening; the front side and the rear side of the supporting plate are both provided with L-shaped sliding grooves, and two ends of the rotating shaft respectively penetrate through the two sliding grooves; the sliding groove is composed of a first straight strip section and a second straight strip section, the first straight strip section is vertically arranged, the second straight strip section is located below the first straight strip section, and the first straight strip section is located between the second straight strip section and the supporting plate; components and parts are installed in the backup pad, and components and parts and spout set up respectively on the left side and the right side of backup pad. This fan terminal box structure is convenient for maintain.

Description

Fan junction box structure

Technical Field

The invention relates to a fan, in particular to a fan junction box structure.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy.

The terminal box is the important component of fan, and two kinds of modes are installed to current terminal box: 1. the junction box is directly fixed outside the fan; 2. the terminal box is fixed inside fan machine case. However, the inside of the junction box and the inside of the fan case are both narrow spaces, which is not beneficial to the wiring or maintenance of the circuit inside the junction box.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a fan junction box structure convenient to maintain.

The purpose of the invention can be realized by the following technical scheme: a fan junction box structure comprises a case, wherein a junction box comprises a box body vertically fixed in the case, components arranged in the box body and a cover plate horizontally arranged outside the case, an operation opening right facing an inner cavity of the box body is formed in the wall of the case, the cover plate covers the operation opening, and a wire passing hole is arranged on the cover plate in a penetrating mode; the front side and the rear side of the supporting plate are both provided with L-shaped sliding grooves matched with the rotating shaft, and two ends of the rotating shaft respectively penetrate through the two sliding grooves; the sliding groove is composed of a first straight strip section and a second straight strip section, the first straight strip section is vertically arranged, the second straight strip section is located below the first straight strip section, and the first straight strip section is located between the second straight strip section and the supporting plate; the components are arranged on the supporting plate, and the components and the sliding grooves are respectively arranged on the left side and the right side of the supporting plate; the supporting plate can slide out of the case through the operation port and realize the back-and-forth switching between the horizontal state and the vertical state.

When wiring or maintenance is carried out, the cover plate is held to enable the supporting plate to vertically slide out of the case, then the supporting plate is turned rightwards to be in a horizontal state through the matching of the straight strip section II and the rotating shaft, at the moment, the component is located on the upper side of the supporting plate and outside the case, the periphery of the component is not shielded, and therefore wiring or maintenance operation of an operator is effectively facilitated; after the wiring or maintenance operation is finished, the sliding support plate can be completely retracted into the box body under the matching of the sliding groove and the rotating shaft, so that the whole junction box structure is positioned in the case, a good protection effect is achieved, the service life of the junction box is prolonged, and the junction box can also reduce the occupied space of the whole fan and improve the overall attractiveness of the whole fan in the case.

In the junction box structure of the fan, an annular wire joint is vertically fixed in the wire passing hole, and the upper end of the wire joint extends out of the wire passing hole. The wire connector is used for connecting external wires of the junction box and can also serve as a holding part to slide in the operation supporting plate, namely, the wire connector has the effect of dual purposes of one object, and is convenient to assemble while the structure is simplified.

In foretell fan terminal box structure, apron and quick-witted case can dismantle and link firmly to better spacing apron prevents the backup pad roll-off.

In foretell fan terminal box structure, the apron passes through the screw and can dismantle with quick-witted case and link firmly, has simple structure, simple to operate's advantage.

In the above-mentioned fan junction box structure, the box body is provided with two round holes for two ends of the rotating shaft to pass through respectively, and the junction box structure further comprises a limiting structure for limiting the axial movement of the rotating shaft.

In foretell fan terminal box structure, limit structure includes two jump rings, is equipped with the two ring channels that are used for installing two jump rings respectively in the pivot, and two jump rings all sticiss on the box body outer wall, has simple structure, simple to operate's advantage.

As another scheme, in the above fan junction box structure, the limiting structure includes an annular convex portion integrally formed at one end of the rotating shaft and a pressing ring fixed at the other end of the rotating shaft, and the pressing ring and the annular convex portion are both pressed tightly on the outer wall of the box body.

In foretell fan terminal box structure, the backup pad upper end is buckled right and is formed the connecting portion that the level set up and be rectangular shape, and connecting portion length extends along the pivot axial, and the connecting portion roof is pasted on the apron, and the pivot is in the connecting portion downside to increase backup pad and apron area of contact, improve both joint strength and stability.

Compared with the prior art, the fan junction box structure has the following advantages:

1. when wiring or overhauing, grip the apron and make the vertical roll-off quick-witted case of backup pad, make the backup pad upset right through straight section two and pivot cooperation after that and be the horizontality, at this moment, components and parts are in the backup pad upside and are in quick-witted case outside, do not have all around to shelter from, effectively make things convenient for operating personnel to carry out the wiring or overhaul the operation.

2. After the wiring or maintenance operation is finished, the sliding support plate can be completely retracted into the box body under the matching of the sliding groove and the rotating shaft, so that the whole junction box structure is positioned in the case, a good protection effect is achieved, the service life of the junction box is prolonged, and the junction box can also reduce the occupied space of the whole fan and improve the overall attractiveness of the whole fan in the case.

3. The wire joint is used for connecting the external wiring of the junction box and can also be used as a holding part to slide with the operation support plate, namely, in the application, the wire joint has the effect of dual purposes of one object, and is convenient to assemble while simplifying the structure.

Drawings

Fig. 1 is a schematic perspective view of a fan.

Fig. 2 is a schematic cross-sectional view of the junction box.

Fig. 3 is a schematic view of the mounting structure of the rotating shaft.

Fig. 4 is a perspective view of the support plate.

Fig. 5 is a schematic structural view of a state when the support plate slides up.

Fig. 6 is a schematic structural view of the support plate in a horizontal state.

In the figure, 1, a chassis; 2. a box body; 2a, flanging; 3. a component; 4. a cover plate; 5. a screw; 6. a support plate; 6a, a chute; 6a1, a first straight strip section; 6a2 and a straight section II; 6b, a connecting part; 7. a rotating shaft; 8. a wire joint; 9. and a clamp spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in figure 1 of the drawings, in which,

the fan comprises a case 1;

as shown in fig. 2, the junction box structure of the blower comprises a box body 2 vertically fixed in a case 1, a component 3 arranged in the box body 2 and a cover plate 4 horizontally arranged outside the case 1.

Wherein the content of the first and second substances,

the box opening of the box body 2 is arranged upwards, and an operation opening which is right opposite to the inner cavity of the box body 2 is arranged on the box wall of the case 1.

The cover plate 4 covers the operation opening, and a wire passing hole is arranged on the cover plate 4 in a penetrating mode. The cover 4 preferably covers the access opening by attaching its bottom wall to the top wall of the housing 1. The cover plate 4 is detachably and fixedly connected with the case 1, and the preferable cover plate 4 is detachably and fixedly connected with the case 1 through the screw 5, so that the multifunctional computer case has the advantages of simple structure and convenience in installation. Naturally, the cover plate 4 can also be detachably and fixedly connected with the case 1 in a bonding mode.

As shown in fig. 2 and 4, a support plate 6 is vertically arranged in the box body 2 and a rotating shaft 7 is horizontally and rotatably arranged in the box body. Wherein, the upper end of the supporting plate 6 is fixedly connected with the cover plate 4, and the supporting plate 6 can extend out of the case 1 through the operation opening; the axis of the rotating shaft 7 extends forwards and backwards, and the rotating shaft 7 is arranged close to the operation opening. The front side and the rear side of the supporting plate 6 are both provided with L-shaped sliding grooves 6a matched with the rotating shaft 7, and two ends of the rotating shaft 7 penetrate through the two sliding grooves 6a respectively. The chute 6a is composed of a first straight section 6a1 arranged vertically and a second straight section 6a2 arranged horizontally, and the first straight section 6a1 is communicated with the second straight section 6a 2. The straight section two 6a2 is positioned below the straight section one 6a1, and the straight section one 6a1 is positioned between the straight section two 6a2 and the support plate 6. The component 3 is arranged on the support plate 6, and the component 3 and the chute 6a are respectively arranged on the left side and the right side of the support plate 6; the supporting plate 6 can slide out of the case 1 through the operation port and realize the back and forth switching between the horizontal state and the vertical state.

In the present embodiment, it is preferred that,

preferably, the support plate 6 is arranged close to the right side of the box body 2;

the box body 2 is installed in the following way: the upper end side wall of the box body 2 is outwards bent to form a flange 2a, the flange 2a is pressed on the inner wall of the case 1, and the flange 2a is fixedly connected with the case 1. In actual products, the turnup 2a and the case 1 can be fixedly connected by adopting welding, bolt fixing and other modes.

A ring-shaped wire joint 8 is vertically fixed in the wire passing hole, and the upper end of the wire joint 8 extends out of the wire passing hole. The wire joint 8 is used for connecting the external wires of the junction box and can also be used as a holding part to operate the sliding of the support plate 6, namely in the application, the wire joint 8 has the dual-purpose effect of one object, and the structure is simplified and the assembly is convenient.

As shown in fig. 3, the rotating shaft 7 is installed as follows: two round holes for two ends of the rotating shaft 7 to pass through are arranged on the box body 2 in a penetrating mode, and the junction box structure further comprises a limiting structure used for limiting the axial movement of the rotating shaft 7. Particularly, limit structure includes two jump rings 9, is equipped with the two ring channels that are used for installing two jump rings 9 respectively on the pivot 7, and two jump rings 9 all sticiss on 2 outer walls of box body, has simple structure, simple to operate's advantage.

Further, the upper end of the supporting plate 6 is bent rightwards to form a horizontally arranged and strip-shaped connecting portion 6b, the length of the connecting portion 6b extends axially along the rotating shaft 7, the top wall of the connecting portion 6b is attached to the cover plate 4, and the rotating shaft 7 is located on the lower side of the connecting portion 6b, so that the contact area of the supporting plate 6 and the cover plate 4 is increased, and the connection strength and stability of the supporting plate 6 and the cover plate are improved. Preferably, the cover plate 4 and the support plate 6 are fixedly connected by welding.

As shown in fig. 5 and 6, during wiring or maintenance, the cover plate 4 is held to enable the support plate 6 to vertically slide out of the case 1, then the support plate 6 is turned rightwards to be in a horizontal state through the matching of the straight section two 6a2 and the rotating shaft 7, at the moment, the component 3 is located on the upper side of the support plate 6 and outside the case 1, and the periphery of the component is not shielded, so that the wiring or maintenance operation of an operator is effectively facilitated; after the wiring or maintenance operation is finished, under the cooperation of the sliding groove 6a and the rotating shaft 7, the sliding support plate 6 can be completely retracted into the box body 2, so that the whole junction box structure is positioned in the case 1, a better protection effect is achieved, the service life of the junction box is prolonged, and the junction box can also reduce the occupied space of the whole fan and improve the overall attractiveness of the whole fan in the case 1.

Example two

The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: limiting structure includes 7 epaxial annular convex parts of integrated into one piece in the pivot and fixes the clamping ring on the 7 other ends of pivot, and clamping ring and annular convex part all sticiss on 2 outer walls of box body.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A fan junction box structure is characterized in that a support plate (6) is vertically arranged in the box body (2) and a rotating shaft (7) is horizontally and rotatably arranged in the box body (2), the upper end of the support plate (6) is fixedly connected with the cover plate (4), and the rotating shaft (7) is arranged close to an operation port; the front side and the rear side of the supporting plate (6) are both provided with L-shaped sliding grooves (6 a) matched with the rotating shaft (7), and two ends of the rotating shaft (7) respectively penetrate through the two sliding grooves (6 a); the sliding chute (6 a) is composed of a first straight section (6 a 1) which is vertically arranged and a second straight section (6 a 2) which is horizontally arranged, the second straight section (6 a 2) is positioned below the first straight section (6 a 1), and the first straight section (6 a 1) is positioned between the second straight section (6 a 2) and the supporting plate (6); the components (3) are arranged on the supporting plate (6), and the components (3) and the sliding grooves (6 a) are respectively arranged on the left side and the right side of the supporting plate (6); the supporting plate (6) can slide out of the case (1) through the operation opening and realize the back-and-forth switching between the horizontal state and the vertical state.

2. The blower fan junction box structure as claimed in claim 1, wherein a ring-shaped wire connector (8) is vertically fixed in the wire through hole, and the upper end of the wire connector (8) extends out of the wire through hole.

3. The blower junction box structure according to claim 1 or 2, wherein the cover plate (4) is detachably and fixedly connected with the chassis (1).

4. The blower junction box structure according to claim 3, wherein the cover plate (4) is detachably and fixedly connected with the case (1) through screws (5).

5. The junction box structure of the fan as claimed in claim 1, wherein the box body (2) is provided with two circular holes for the two ends of the rotating shaft (7) to pass through, and the junction box structure further comprises a limiting structure for limiting the axial movement of the rotating shaft (7).

6. The junction box structure of the blower fan as claimed in claim 5, wherein the limiting structure comprises two clamp springs (9), two annular grooves for respectively installing the two clamp springs (9) are arranged on the rotating shaft (7), and the two clamp springs (9) are tightly pressed on the outer wall of the box body (2).

7. The blower junction box structure according to claim 5, wherein the limiting structure comprises an annular convex part integrally formed at one end of the rotating shaft (7) and a pressing ring fixed at the other end of the rotating shaft (7), and the pressing ring and the annular convex part are tightly pressed on the outer wall of the box body (2).

8. The junction box structure of the fan as claimed in claim 1, wherein the upper end of the support plate (6) is bent rightwards to form a horizontally arranged and elongated connecting portion (6 b), the length of the connecting portion (6 b) extends along the axial direction of the rotating shaft (7), the top wall of the connecting portion (6 b) is attached to the cover plate (4), and the rotating shaft (7) is located at the lower side of the connecting portion (6 b).