CN210537171U

CN210537171U - Electric control box

Info

Publication number: CN210537171U
Application number: CN201921141482.7U
Authority: CN
Inventors: 刘玉鹏; 魏明; 陈正青
Original assignee: Ningbo Bojun Intelligent Technology Co ltd
Current assignee: Ningbo Bojun Intelligent Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-05-15
Anticipated expiration: 2029-07-19

Abstract

The utility model relates to an automatically controlled box's the technical field of moulding plastics particularly, relates to an automatically controlled box. The electronic control box comprises a box body (1) and a terminal board (2), wherein the terminal board (2) is fixedly connected with the box body (1), and the box body (1) and the terminal board (2) are integrally formed through injection molding. The electric control box of the utility model can save screws and save cost by assembling the terminal board in the mould during the injection molding process of the box body; the efficiency is improved; simultaneously, avoided automatically controlled box to lose the screw or the terminal block is loosened and is caused the trouble in the transportation.

Description

Electric control box

Technical Field

The utility model relates to an automatically controlled box's the technical field of moulding plastics particularly, relates to an automatically controlled box.

Background

The electric control box is one of the necessary spare and accessory parts of household appliances such as an air conditioner and the like. Because the electric elements such as the circuit board and the like are arranged in the electric control box, a grounding terminal board needs to be installed on the electric control box, and a grounding terminal can be installed on the grounding terminal board so as to ensure the use safety of the air conditioner.

However, in the conventional assembly of the ground terminal board, generally, an installation screw hole is arranged on an electric control box, and the terminal board is fixedly connected with the electric control box by using a plurality of screws; or, set up screw and reference column on automatically controlled box, fix a position the back through the reference column, use at least one screw with ground terminal board and automatically controlled box fixed connection. The installation mode of above earth terminal plate and automatically controlled box all has obvious drawback: 1. the screws are needed for fixing, so that the number and cost of parts are increased; 2. the assembly process of the terminal board and the electric control box needs to be added, the labor cost is increased, the assembly efficiency is reduced, and even if the automatic equipment is specially manufactured for the purpose, the production cost is also greatly improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be more high-efficient, economic realization terminal block and the automatically controlled fixed mounting between the box.

For at least one aspect of solving above-mentioned technical problem to a certain extent, the utility model provides an automatically controlled box, including box body and terminal block, the terminal block with box body fixed connection, just the box body with the terminal block is through the integrated into one piece that moulds plastics.

Optionally, the terminal block is provided with at least one terminal mounting hole for mounting a terminal block.

Optionally, the cartridge body is provided with a mounting portion for connection with the terminal block.

Optionally, the mounting portion is provided with a mounting groove, a groove bottom of the mounting groove is recessed inward relative to a surface of the mounting portion, and the terminal plate is arranged in the mounting groove.

Optionally, the terminal plate outer surface is flush with a surface of the mounting portion.

Optionally, the terminal plate outer surface protrudes from a surface of the mounting portion.

Optionally, a limiting pin is arranged on the mounting portion, the limiting pin is distributed around the terminal board, and the limiting pin is connected with the side wall of the terminal board in an attaching mode.

Optionally, the box body includes the installation cavity, installation cavity open-ended border is equipped with the installation department, the periphery of installation department is equipped with first baffle and/or second baffle.

The electric control box of the utility model can save the assembly screws of the terminal board and the box body and save the cost by assembling the terminal board in the mould during the injection molding process of the box body; the process of installing the terminal board after the box body is manufactured is omitted, the efficiency is improved, and the cost is saved; simultaneously, avoided automatically controlled box to lose the screw or the terminal block is loosened and is caused the trouble in the transportation.

Drawings

Fig. 1 is a schematic view of the overall structure of the electric control box of the present invention;

FIG. 2 is an enlarged view of a portion B of FIG. 1;

fig. 3 is an exploded view of the box body and the terminal plate of the electric control box of the present invention;

fig. 4 is a top view of the electric control box of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is an enlarged view of a portion of the mounting portion provided with the mounting slot;

fig. 8 is a partially enlarged view of the mounting portion provided with the stopper pin.

Description of reference numerals:

1-a cartridge body; 11-a mounting cavity; 12-the outer wall of the cartridge; 121-control panel card slot; 13-a saddle; 15-a mounting portion; 151-an extension hole; 152-a first baffle; 153-a second baffle; 155-mounting groove; 156-a spacing pin; 2-terminal plate; 21-terminal mounting hole.

Detailed Description

The electric control box is one of necessary spare and accessory parts of household appliances such as an air conditioner and the like, and is used for installing electric elements such as a circuit board and the like in the electric control box. In order to ensure the use safety of the household electrical appliance, a terminal board for assembling the grounding terminal is arranged on the electric control box. In the conventional assembly of the ground terminal board, an installation screw hole is generally arranged on an electric control box, and the terminal board is fixedly connected with the electric control box by using a plurality of screws; or, set up screw and reference column on automatically controlled box, fix a position the back through the reference column, use at least one screw with terminal block and automatically controlled box fixed connection. This has the drawback of a large number of parts, low assembly efficiency and high cost. To a certain extent, solve these drawbacks, the utility model provides an automatically controlled box and manufacturing method thereof.

If there is a description in an embodiment of the present invention referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1, an electronic control box includes a box body 1 and a terminal block 2. The terminal plate 2 is fixedly mounted on the box body 1, and the terminal plate 2 and the box body 1 are integrally formed through injection molding. The terminal plate 2 is made of metal or alloy, and optionally, the terminal plate 2 is made of copper plate, iron plate, stainless steel plate, aluminum alloy or magnesium alloy; the cartridge body 1 is plastic formed by solidification of an injection molding material.

The electric control box of the utility model can save the assembly screws of the terminal board 2 and the box body 1 by assembling the terminal board 2 in the mould during the injection molding process of the box body 1, thereby effectively saving the material cost; moreover, after the box body 1 is manufactured, the assembly process of the terminal board 2 and the box body 1 is not needed in the subsequent assembly of the electric control box, the overall assembly efficiency of the electric control box is greatly improved, and the labor cost is saved. On the other hand, avoided automatically controlled box to lose the screw or terminal block 2 pine in the transportation and fallen the trouble that causes.

As shown in fig. 2, the terminal block 2 is provided with at least one terminal mounting hole 21, and the terminal mounting hole 21 is used for mounting a terminal block or mounting a screw or a screw for fixing the terminal block, which is different from the screw or the screw for fixing the terminal block 2.

As shown in fig. 3, a mounting cavity 11 is provided in the box body 1, and the mounting cavity 11 is used for mounting electrical components such as a control circuit board of a household appliance. The mounting cavity 11 is formed by enclosing a coherent box outer wall 12, the box outer wall 12 is sealed at each position, and the box outer wall 12 is integrally formed. The mounting cavity 11 is provided with openings in one orientation for mounting the electrical components and for routing the wiring. When looking down from the opening of the mounting cavity 11 into the mounting cavity 11, the inner bottom surface of the mounting cavity 11 is seen to be irregularly L-shaped. Two control panel clamping grooves 121 with opposite openings are formed in the side wall of the mounting cavity 11 (namely, on the inner side surface of the box outer wall 12), and the control panel clamping grooves 121 are used for clamping a control circuit board and an electric control box. In this embodiment, the groove width of control panel draw-in groove 121 reduces from the opening of installation cavity 11 to the bottom of installation cavity 11 gradually, ensures the joint effect, installs control circuit board moreover easily.

A supporting platform 13 is arranged at the opening edge of the installation cavity 11 (or, the top of the box outer wall 12, and here and later, the top of the box outer wall 12 is a position close to the opening of the installation cavity 11). The tray table 13 is fixedly connected with the top edge of the box outer wall 12 and extends for a certain area in the direction away from the opening of the installation cavity 11.

As shown in fig. 3 to 6, the mounting portion 15 is provided on the surface of the holder 13, the mounting portion 15 is a rounded rectangular plane, and the terminal plate 2 is attached to the surface of the mounting portion 15. In order to ensure that the connection between the terminal board 2 and the box body 1 is firmer after injection molding, a binder can be arranged on the contact surface of the terminal board 2 and the box body 1 before injection molding. It should be noted that, in the present embodiment, the mounting portion 15 is provided on the tray table 13, which is merely an example of a mounting case, and in other embodiments, the mounting portion may be provided at any suitable position on the electrical control box.

The outer edge of the mounting portion 15 is a long side of the rounded rectangle. A first baffle 152 is provided on the outer edge of the mounting portion 15. A second baffle 153 is arranged on the other pair of opposite edges of the rounded rectangle, and the second baffle 153 is fixedly connected with the first baffle 152. And the first and

second blocking plates

152 and 153 are perpendicular or approximately perpendicular to the top surface of the mounting portion 15. In this embodiment, the first and

second shutters

152 and 153 are provided to protect and support the terminal block on the terminal block 2.

In order to ensure that the wiring terminal is firmly installed, the installation part 15 is provided with an extension hole 151 with a certain depth, and the extension hole 151 and the terminal installation hole 21 are in one-to-one correspondence. In the case where the terminal plate 2 has a certain thickness, the extension hole 151 may not be provided or may have a small depth.

As shown in fig. 7, the mounting portion 15 is preferably provided with a mounting groove 155 matching the shape of the terminal plate 2. The groove bottom of the mounting groove 155 is recessed inward with respect to the surface of the mounting portion 15. The terminal plate 2 is provided in the mounting groove 155. The depth of the mounting groove 155 is slightly smaller than the thickness of the terminal plate 2 so that the outer surface of the terminal plate 2 protrudes from the surface of the mounting portion 15 after injection molding. This embodiment is through setting up the mounting groove, has increased the connection area of terminal block 2 with box body 1, makes terminal block 2 side also be connected with box body 1, and guarantee terminal block 2 installation is more reliable.

Preferably, the depth of the mounting groove 15 is identical to the thickness of the terminal plate 2 such that the outer surface of the terminal plate 2 is flush with the surface of the mounting portion 15. Thus, the other five surfaces of the terminal board 2 except the outer surface are all connected with the box body 1 through injection molding, and the installation reliability of the terminal board 2 is further improved.

As shown in fig. 8, preferably, the mounting portion 15 is provided with a plurality of limit pins 156 surrounding the terminal board 2, and the limit pins 156 are attached to the side wall of the terminal board 2 and connected by injection molding, so that not only can the terminal board 2 be effectively fixed, but also the injection molding material can be saved. In this embodiment, the stopper pin 156 is a small rectangular parallelepiped pillar connected to the top surface of the mounting portion 15. In other embodiments, the stopper pin 156 may also have other three-dimensional shapes, for example, a column with a semicircular cross section, and the plane of the column is in close contact with the side surface of the terminal plate 2; or a pillar having a triangular cross section, a certain plane of which is attached to the side surface of the terminal plate 2.

Another object of the present invention is to provide a method for manufacturing an electronic control box, comprising the following steps:

s1: the terminal plate 2 is manufactured, and the terminal mounting hole 21 is provided on the terminal plate 2, that is, the terminal plate 2 to be put into the injection mold is prepared. The method comprises the following substeps:

s11: a rectangular or rounded rectangular terminal plate 2 is manufactured. Of course, it is also possible to make terminal boards 2 of other shapes according to the specific needs of the customer.

S12: the terminal plate 2 is provided with a terminal mounting hole 21. The terminal mounting hole 21 is a through hole for mounting a connection terminal. The aperture and number of the terminal mounting holes 21 are set as required. All the terminal mounting holes 21 may have the same diameter, or terminal mounting holes 21 having different diameters may be provided.

S2: the terminal plate 2 is placed in an injection mold, and the terminal plate is positioned. The method comprises the following substeps:

s21: an injection mold provided with a structure for fixing and positioning the terminal board 2 is prepared. The number and the diameter of the filling columns consistent with those of the terminal mounting holes 21 of the terminal plate 2 are arranged in the injection mold, so that injection molding materials are prevented from entering the terminal mounting holes 21.

S22: the injection mold is opened, the terminal plate 2 is placed into the injection mold, the terminal plate 2 can be placed by using a manipulator, and a filling column of the injection mold is ensured to stretch into the terminal mounting hole 21.

S3: and closing the injection mold, and setting proper mold locking force to ensure tight matching of the terminal plate 2 and the mold surface. Injecting injection molding materials into an injection mold, and forming the electric control box fixedly connected with the box body 1 and the terminal board 2 after injection molding.

The utility model discloses the manufacturing approach of automatically controlled box only needs to increase the process of putting into the mould with terminal block 2 in injection moulding process, and manufacturing approach is simple, and adopts the fixed method of moulding plastics with terminal block 2 integration to automatically controlled box, connects reliably.

Preferably, the method for manufacturing an electronic control box of the present invention further includes, after step S3, the steps of: the burrs or burrs on the periphery of the terminal board 2 are removed through a grinding or polishing process, so that the joint of the terminal board 2 and the box body 1 which is visible is smoother and more attractive.

Preferably, in step S2, before the step of placing the terminal plate in the injection mold in substep S22, the method further comprises the substeps of: an adhesive is provided on the connection face of the terminal block 2 and the box body 1 to improve the connection reliability of the terminal block 2 and the box body 1.

Optionally, in other embodiments, the manufacturing method of the electronic control box is slightly different from that of the above embodiments. For example, the step S1 is only completed to make the terminal plate 2 rectangular or rounded rectangular, without making the terminal mounting hole 21. After step S3, there is provided the step of: and positioning the electric control box, and manufacturing a terminal mounting hole 21. That is, after the injection molding is completed, the terminal mounting hole 21 is formed. The manufacturing method of the electric control box can simplify the injection molding requirement, and particularly simplify the design of an injection mold.

It should be noted that, although the above embodiments are described with the electric control box of the air conditioner as a main point, the present invention can be extended to the electric control box of other household appliances. Moreover, since the shape of the electrical control box can be variously modified, the present description is not exhaustive with examples, but should not be considered as an unfavorable limitation of the present invention.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The electronic control box is characterized by comprising a box body (1) and a terminal board (2), wherein the terminal board (2) is fixedly connected with the box body (1), and the box body (1) and the terminal board (2) are integrally formed through injection molding.

2. An electric control box according to claim 1, characterized in that the terminal board (2) is provided with at least one terminal mounting hole (21), the terminal mounting hole (21) being used for mounting a terminal block.

3. The electrical control box according to claim 2, characterized in that a mounting portion (15) is provided on the box body (1), the mounting portion (15) being for connection with the terminal plate (2).

4. The electrical control box according to claim 3, wherein a mounting groove (155) is provided on the mounting portion (15), a groove bottom of the mounting groove (155) is recessed inward with respect to a surface of the mounting portion (15), and the terminal plate (2) is provided in the mounting groove (155).

5. The electrical control box according to claim 4, characterized in that the outer surface of the terminal plate (2) is flush with the surface of the mounting portion (15).

6. The electrical control box according to claim 4, characterized in that the outer surface of the terminal plate (2) protrudes from the surface of the mounting portion (15).

7. The electrical control box according to claim 3, characterized in that a limiting pin (156) is arranged on the mounting part (15), the limiting pin (156) is distributed around the terminal board (2), and the limiting pin (156) is in fit connection with the side wall of the terminal board (2).

8. The electrical control box according to any one of claims 3 to 7, characterized in that the box body (1) comprises a mounting cavity (11), the mounting portion (15) is arranged at the edge of the opening of the mounting cavity (11), and the first baffle (152) and/or the second baffle (153) are arranged at the periphery of the mounting portion (15).