Ultrasonic welding jig for sealing box of display panel of air conditioner

Abstract

The utility model discloses an ultrasonic welding jig for a sealing box of an air conditioner display panel, which belongs to the technical field of ultrasonic welding and comprises an upper jig die, a lower jig die and a plastic product shell, and the top of the upper jig die is fixedly connected with a connector matched with a welding head. Through the design of the jig upper die and the jig lower die, precise positioning and stable fixing of the air conditioner display panel sealing box are achieved, in the welding process, the first downward pressing part and the second downward pressing part press the edge of a plastic shell and generate high-frequency vibration, and through the arranged first sinking cavity and the arranged second sinking cavity, in the welding process of the shell, the welding quality of the shell is greatly improved. The middle of the shell is not stressed, only the edge of the shell is welded through high-frequency vibration, the situation that components on an internal circuit board are damaged due to the fact that the portion, protruding out of the lamp cavity, in the whole shell shakes due to high-frequency vibration is avoided, efficient welding of products is guaranteed, and meanwhile the welding yield of the products can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic welding, in particular to an ultrasonic welding jig for a sealing box of an air conditioner display panel. Background Art

[0002] In modern manufacturing, especially in the production process of electronic equipment, precise assembly and firm connection of components are crucial. Among them, the manufacture of air conditioning display panel sealing box is a complex and delicate process. The most common method is to use ultrasonic welding technology to weld and assemble the air conditioning display panel sealing box shell. During ultrasonic welding, a welding jig is required. The upper and lower cavities of the current ultrasonic jigs are basically flat designs. During welding, high-frequency vibrations are transmitted to the entire shell, causing the shell to shake. When shaking, the protruding functional lamp cavity inside the shell is easy to support the nearby components and cause damage or damage, which invisibly avoids bad rework after welding. Therefore, it is highly practical to provide a feasible display panel sealing box shell welding, which can avoid damage to internal components. Utility Model Content

[0003] The embodiment of the utility model provides an ultrasonic welding jig for a sealing box of a display panel, aiming to solve the problems raised by the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides an ultrasonic welding jig for a sealed box of a display panel, comprising an upper jig mold, a lower jig mold and a plastic product shell, wherein a connector adapted to the welding head is fixedly connected to the top of the upper jig mold, a first cavity is provided at the bottom of the welding head, a first sinking cavity is provided at the bottom of the first cavity, the length and width of the first sinking cavity are both smaller than the length and width of the first cavity, and the opening of the first sinking cavity and the edge of the first cavity form a first pressing portion; a second cavity adapted to the first cavity is provided at the top of the lower jig mold, a second sinking cavity is provided at the bottom of the second cavity, the length and width of the second sinking cavity are both smaller than the length and width of the second cavity, and the opening of the second sinking cavity and the edge of the second sinking cavity form a second pressing portion; the shell of the sealed box of the display panel is composed of an upper shell and a lower shell, circuit boards are installed inside the upper shell and the lower shell, and when the shell of the plastic product is welded, the upper shell is placed in the first cavity, and the lower shell is placed in the second cavity, and the first pressing portion and the second pressing portion respectively press the edges of the upper shell and the lower shell and generate high-frequency vibrations.

[0005] As a preferred solution of the utility model, protrusions for pressing down and fixing the circuit board are fixedly connected to the inner sides of the upper shell and the lower shell.

[0006] As a preferred solution of the present invention, the inner edge of the first cavity, the inner edge of the second cavity and the interior of the first sinking cavity are all provided with a plurality of grooves.

[0007] As a preferred embodiment of the present utility model, the widths of the first pressing portion and the second pressing portion are both greater than the width of the welding joint between the upper shell and the lower shell.

[0008] As a preferred embodiment of the present utility model, when the upper die and the lower die of the jig are closed, the cavity formed by the first cavity and the second cavity is adapted to the shape of the plastic product housing.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The ultrasonic welding jig for the air conditioner display board sealing box realizes precise positioning and stable fixation of the air conditioner display board sealing box through the design of the upper die and the lower die of the jig. During the welding process, the first pressing portion and the second pressing portion press the edges of the plastic housing and generate high-frequency vibration. The provided first sinking cavity and the second sinking cavity can enable the middle part of the housing not to be stressed during the welding process, and the high-frequency vibration only welds the edges of the housing, avoiding damage to the components on the internal circuit board caused by the shaking of the protruding lamp cavity part inside the housing due to the high-frequency vibration of the whole housing. While ensuring the high-efficiency welding of the product, it can also ensure the welding yield of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 is a disassembled schematic diagram of the present utility model;

[0013] Figure 3 is a schematic diagram of the structure of the upper die of the jig of the present utility model;

[0014] Figure 4 is a schematic diagram of the structure of the lower die of the jig of the present utility model;

[0015] Figure 5 is a schematic diagram of the structure of Embodiment 2 of the present utility model.

[0016] In the figure: 100, upper die of the jig; 110, connecting head; 120, first cavity; 130, first sinking cavity; 140, first pressing portion; 200, lower die of the jig; 210, second cavity; 220, second sinking cavity; 230, second pressing portion; 300, plastic product housing; 310, upper shell; 320, lower shell; 330, protrusion; 400, slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Embodiment 1

[0019] Please refer to Figure 1 - Figure 4 , the present utility model provides an ultrasonic welding jig for an air conditioner display board sealing box, which is composed of a jig upper die 100, a jig lower die 200 and a plastic product housing 300. When the jig upper die 100 and the jig lower die 200 are closed, the cavity formed by the first cavity 120 and the second cavity 210 is adapted to the shape of the plastic product housing 300.

[0020] Specifically, the ultrasonic welding jig is composed of the jig upper die 100 and the jig lower die 200, and can be used for ultrasonic welding of the plastic product housing 300 (air conditioner display board sealing box).

[0021] Among them, a connector 110 adapted to the welding head is fixedly connected to the top of the jig upper die 100. A first cavity 120 is provided at the bottom of the welding head. A first sinking cavity 130 is provided at the bottom of the first cavity 120. The length and width of the first sinking cavity 130 are both smaller than the length and width of the first cavity 120. The opening of the first sinking cavity 130 and the edge of the first cavity 120 form a first pressing part 140. A second cavity 210 adapted to the first cavity 120 is provided at the top of the jig lower die 200. A second sinking cavity 220 is provided at the bottom of the second cavity 210. The length and width of the second sinking cavity 220 are both smaller than the length and width of the second cavity 210. The opening of the second sinking cavity 220 and the edge of the second sinking cavity 220 form a second pressing part 230. The plastic product housing 300 is composed of an upper housing 310 and a lower housing 320. A circuit board is installed inside the upper housing 310 and the lower housing 320. When the plastic product housing 300 is welded, the upper housing 310 is placed in the first cavity 120, and the lower housing 320 is placed in the second cavity 210. The first pressing part 140 and the second pressing part 230 respectively press the edges of the upper housing 310 and the lower housing 320 and generate high-frequency vibration.

[0022] Specifically, the provided connecting head 110 can be used to install the upper die 100 of the fixture and the welding head of the ultrasonic welder. The provided first cavity 120 can be used to accommodate and press down the upper shell 310 of the plastic product housing 300. The provided second cavity 210 can be used to support the lower shell 320 of the plastic product housing 300. When the upper die 100 of the fixture and the lower die 200 of the fixture are closed, the first pressing part 140 and the second pressing part 230 can generate high-frequency vibration and heat at the edge fastening part of the upper shell 310 and the lower shell 320, realizing the ultrasonic welding of the plastic housing 300. The provided first sunken cavity 130 and second sunken cavity 220 can enable the cavity wall to avoid the circuit board (PCB) inside the shell, the middle parts of the upper shell 310 and the lower shell 320 are not stressed, and at the same time prevent the vibration force of the upper die 100 of the fixture and the lower die 200 of the fixture from being transmitted to the whole shell, causing shaking or displacement, avoiding the impact damage to the components on the circuit board due to the vibration force generated by high frequency during the ultrasonic welding process, and then improving the overall yield of product processing.

[0023] In this embodiment: On the inner sides of both the upper shell 310 and the lower shell 320, there are fixedly connected protrusions 330 for pressing down, limiting, and fixing the circuit board.

[0024] Specifically, by providing protrusions 330 adapted to the shape of the circuit board on both the upper shell 310 and the lower shell 320, placing the circuit board at the protrusions 330, when the upper shell 310 and the lower shell 320 are ultrasonically welded, the circuit board can be quickly pressed, fixed, and limited.

[0025] In this embodiment: On the inner side edges of the first cavity 120, the inner side edges of the second cavity 210, and inside the first sunken cavity 130, a plurality of slots 400 are provided. The widths of both the first pressing part 140 and the second pressing part 230 are greater than the width of the welding part of the upper shell 310 and the lower shell 320.

[0026] Specifically, the provided plurality of slots 400 can accommodate the protrusions 330 correspondingly provided on the shells of the upper shell 310 and the lower shell 320, and are also used for the outlet of the circuit board connection wire harness in the sealed box, ensuring that the upper shell 310 and the lower shell 320 can be placed flat in the first cavity 120 and the second cavity 210, and ensuring that the first pressing part 140 and the second pressing part 230 can effectively perform ultrasonic welding on the edges of the upper shell 310 and the lower shell 320.

[0027] Embodiment 2

[0028] Please refer to the figure. The technical feature that this embodiment differs from Embodiment 1 is as follows: A technology of an ultrasonic welding jig is also provided. The sizes of the first cavity 120 and the second cavity 210 of this ultrasonic welding jig are different from those of the first cavity 120 and the second cavity 210 of the ultrasonic welding jig in Embodiment 1. It also belongs to a technology of an ultrasonic welding jig protected by the present utility model. The technology of the ultrasonic welding jig of the present utility model is only limited to the ultrasonic welding of the air-conditioning display board sealing box.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Ultrasonic welding jig for sealing box of air conditioner display panel, characterized in that: include: A jig upper die (100), wherein a connector (110) adapted to a welding head is fixedly connected to the top of the jig upper die (100), a first cavity (120) is provided at the bottom of the welding head, a first sinking cavity (130) is provided at the bottom of the first cavity (120), the length and width of the first sinking cavity (130) are both smaller than the length and width of the first cavity (120), and the opening of the first sinking cavity (130) and the edge of the first cavity (120) form a first pressing portion (140); A jig lower mold (200), wherein a second mold cavity (210) adapted to the first mold cavity (120) is provided at the top of the jig lower mold (200), a second sinking cavity (220) is provided at the bottom of the second mold cavity (210), the length and width of the second sinking cavity (220) are both smaller than the length and width of the second mold cavity (210), and the opening of the second sinking cavity (220) and the edge of the second sinking cavity (220) form a second pressing portion (230); A plastic product shell (300), the plastic product shell (300) consisting of an upper shell (310) and a lower shell (320), wherein circuit boards are installed inside the upper shell (310) and the lower shell (320), and when the plastic product shell (300) is welded, the upper shell (310) is placed in a first cavity (120), and the lower shell (320) is placed in a second cavity (210), and the first pressing portion (140) and the second pressing portion (230) respectively press the edges of the upper shell (310) and the lower shell (320) to generate high-frequency vibration.

2. The ultrasonic welding jig for sealing box of air conditioner display panel according to claim 1 is characterized in that: The inner sides of the upper shell (310) and the lower shell (320) are both fixedly connected with protrusions (330) used for pressing down and limiting the circuit board.

3. The ultrasonic welding jig for sealing box of air conditioner display panel according to claim 1 is characterized in that: The inner edge of the first cavity (120), the inner edge of the second cavity (210) and the interior of the first sinking cavity (130) are all provided with a plurality of slots (400).

4. The ultrasonic welding jig for sealing box of air conditioner display panel according to claim 1, characterized in that: The width of the first pressing portion (140) and the width of the second pressing portion (230) are both greater than the width of the welding point between the upper shell (310) and the lower shell (320).

5. The ultrasonic welding jig for sealing box of air conditioner display panel according to claim 1, characterized in that: When the jig upper mold (100) and the jig lower mold (200) are molded together, the cavity formed by the first cavity (120) and the second cavity (210) is adapted to the shape of the plastic product shell (300).

Images