Welding device for vehicle-mounted power amplifier

Abstract

The utility model discloses a welding device of a vehicle-mounted power amplifier, which is used for positioning a circuit board of the vehicle-mounted power amplifier, the welding device comprises a carrier used for bearing the circuit board, the welding device further comprises a gland, a space used for accommodating the circuit board is arranged between the carrier and the gland, and the carrier is used for carrying the circuit board. The gland is provided with a crimping assembly, and the crimping assembly is configured to be pressed on a component of the circuit board.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle-mounted power amplifier, specifically relates to a welding device of vehicle-mounted power amplifier. BACKGROUND

[0002] In the existing automobile modification market, automobile sound modification occupies a large share, and vehicle-mounted power amplifier must be used in the vehicle-mounted sound modification process. The vehicle-mounted power amplifier is an audio power amplifier in the vehicle-mounted audio system, which selects and pre-processes the audio input signal, and performs power amplification to enable the electrical signal to have the ability to drive the loudspeaker. The vehicle-mounted power amplifier generally includes a shell for accommodating a circuit board and a cover plate, and the cover plate and the shell are fixedly connected by screws. The circuit board has a plurality of components, and the back of the components needs to be welded with pins, which can transmit electrical signals or energy to facilitate the interaction between different components on the circuit board.

[0003] To meet the requirements of higher production efficiency and cost control, automatic assembly line is used for welding pins. When welding pins, the circuit board is usually positioned, but the positioned circuit board may still shake, which is not conducive to the welding work. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a welding device of vehicle-mounted power amplifier, which can stabilize the circuit board of the vehicle-mounted power amplifier and prevent the circuit board from shaking to affect the welding effect.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A welding device of vehicle-mounted power amplifier is used for positioning the circuit board of the vehicle-mounted power amplifier, the welding device includes a carrier for carrying the circuit board, and the welding device further includes a gland, the carrier and the gland have a space for accommodating the circuit board, the gland is provided with a pressure bonding assembly, and the pressure bonding assembly is configured to press on the components of the circuit board.

[0007] In a preferred embodiment, the gland is provided with a through hole, the pressure bonding assembly passes through the through hole and is movably arranged on the gland.

[0008] In a preferred embodiment, the pressure bonding assembly includes a pressure bonding piece, a fastener and a first elastic piece sleeved on the fastener, the pressure bonding piece is configured to abut on the components, and the first elastic piece is arranged between the gland and the pressure bonding piece.

[0009] In a preferred embodiment, the pressure bonding assembly further includes a guide sleeve arranged on the gland, and the fastener is located in the guide sleeve.

[0010] In a preferred embodiment, the fastener further comprises a gasket, the gasket having an outer diameter greater than an outer diameter of the guide sleeve.

[0011] In a preferred embodiment, the gland is provided with a plurality of guide posts, the carrier is provided with positioning holes, the guide posts are inserted into the positioning holes to position the gland.

[0012] In a preferred embodiment, the welding device further comprises a clamping assembly for clamping the gland, the clamping assembly comprising a first pressing block arranged on the carrier, a second pressing block arranged on the gland, and a clamping member arranged between the first pressing block and the second pressing block, the gland being located between the first pressing block and the second pressing block, the clamping member being movable relative to the first pressing block and / or the second pressing block.

[0013] In a preferred embodiment, the clamping assembly further comprises a first connecting pin and a second connecting pin for connecting the second pressing block and the clamping member, the second elastic member being sleeved on the first connecting pin.

[0014] In a preferred embodiment, the clamping member has a clamping hook, the second pressing block has a clamping surface, and the clamping member has a clamped state, in which the clamping hook is clamped to the clamping surface.

[0015] In a preferred embodiment, the first pressing block is provided with a first through hole, the clamping member is provided with a second through hole, and the second connecting pin passes through the first through hole and the second through hole to connect the clamping member and the first pressing block.

[0016] The above scheme is adopted, and the following advantages are achieved compared with the prior art.

[0017] The welding device of the vehicle-mounted power amplifier of the utility model, the circuit board is arranged between the carrier and the gland, the gland is contacted with a plurality of components on the circuit board through a plurality of clamping assemblies, the clamping assembly is pressed on the component, the component is not prone to shaking, the circuit board is not prone to shaking, and the subsequent welding work is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0019] Figure 1 It is a perspective view of a welding device of a vehicle-mounted power amplifier according to an embodiment of the utility model from one angle.

[0020] Figure 2 FIG. 4 is a perspective view of the welding device of the vehicle-mounted power amplifier according to the embodiment of the present application from another angle.

[0021] Figure 3 FIG. 5 is a rear view of the welding device of the vehicle-mounted power amplifier according to the embodiment of the present application.

[0022] Figure 4 FIG. 6 is an exploded schematic view of the welding device of the vehicle-mounted power amplifier according to the embodiment of the present application.

[0023] Figure 5 FIG. 7 is a schematic view of the carrier sheet and the carrier seat according to the embodiment of the present application after assembly. Figure 4 FIG. 8 is an enlarged view of a portion A in FIG. 7.

[0024] Figure 6 FIG. 9 is a schematic view of the compression cover according to the embodiment of the present application.

[0025] Figure 7 FIG. 10 is an exploded schematic view of the clamping assembly according to the embodiment of the present application.

[0026] Figure 8 FIG. 11 is a sectional view of the compression cover and the compression assembly cooperating according to the embodiment of the present application.

[0027] Figure 9 FIG. 11 is a sectional view of the compression cover and the compression assembly cooperating according to the embodiment of the present application.

[0028] wherein,

[0029] 102, circuit board; 1021, first positioning hole; 1022, pin; 1023, component;

[0030] 1, carrier; 11, positioning pin; 12, second positioning hole; 13, first carrier sheet; 14, second carrier sheet; 15, third carrier sheet;

[0031] 2, carrier seat; 22, rotating pressing block; 23, compression rivet stud;

[0032] 3, compression cover; 31, positioning column; 32, hollow part; 33, through hole; 4, reinforcing strip; 5, clamping assembly; 51, first pressing block; 511, first through hole; 52, second pressing block; 521, clamping surface; 53, clamping piece; 531, clamping hook; 532, second through hole; 54, first connecting pin; 55, second connecting pin; 56, second elastic piece; 6, first interval; 7, second interval; 8, compression assembly; 81, compression piece; 82, fastener; 83, first elastic piece; 84, guide sleeve; 85, gasket. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present application are described in detail below with reference to the drawings. It is to be noted that the descriptions of these embodiments are intended to help understand the present application and are not to be construed as limiting the present application. Furthermore, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0034] The present embodiment provides a welding device for vehicle-mounted power amplifier, which is used for positioning the circuit board so as to weld the pins on the back of the circuit board by the machine.

[0035] Referring to Figures 1 to 9 It is shown that the welding device comprises a carrier 1, a rotating pressing block 22, a pressing cover 3, a reinforcing strip 4 and a clamping assembly 5, the carrier 1 comprises a carrier seat 2 and a plurality of spaced carriers.

[0036] Further, the carrier seat 2 is arranged on the conveying belt, the carrier is used for carrying the circuit board 102 and the carrier is detachably connected to the carrier seat 2, wherein the carrier and the battery piece are one-to-one corresponding, which can be quickly adapted and replaced during production, that is, the carrier 1 of the present embodiment can be compatible with different products for production. After the circuit board 102 is put into the carrier 1, the welding production is carried out, at this time, the carrier seat 2 carries the carrier and the circuit board 102 to flow on the automatic assembly line.

[0037] The material of the carrier sheet is non-metallic, which can achieve good insulation effect and reduce the test abnormality of some test equipment caused by conduction with the circuit in the assembly line. Further, the carrier sheet includes a first carrier sheet 13, a second carrier sheet 14, a third carrier sheet 15, and a fourth carrier sheet (not shown in the figure), and the circuit board 102 includes a first circuit board, a second circuit board, and a third circuit board. The first carrier sheet 13 and the second carrier sheet 14 form a first work station for carrying the first circuit board, and the first carrier sheet 13 and the second carrier sheet 14 have a first interval for exposing part of the lower surface of the first circuit board. The second carrier sheet 14 and the third carrier sheet 15 form a second work station for carrying the second circuit board, and the second carrier sheet 14 and the third carrier sheet 15 have a second interval for exposing part of the lower surface of the second circuit board. The third carrier sheet 15 and the fourth carrier sheet form a third work station for carrying the third circuit board, and the third carrier sheet 15 and the fourth carrier sheet have a third interval for exposing part of the lower surface of the third circuit board. That is, the first circuit board and the second circuit board can share the second carrier sheet 14 in the middle, the second circuit board and the third circuit board share the third carrier sheet 15 in the middle, the first carrier sheet 13 and the second carrier sheet 14 have a first interval 6, and the second carrier sheet 14 and the third carrier sheet 15 have a second interval 7. This not only facilitates welding, but also saves material, reduces production cost, and is not easy to deform.

[0038] The rotary pressing block 22 is arranged on the carrier seat 2, and the carrier 1 has an installed state, i.e., a state in which the carrier 1 is installed on the carrier seat 2. In the installed state, the rotary pressing block 22 presses against the carrier 1 to connect the carrier 1 and the carrier seat 2. Specifically, the carrier seat 2 is provided with a press-in stud 23, the rotary pressing block 22 is sleeved on the press-in stud 23 and can rotate relative to the press-in stud 23, and a spring (not shown in the figure) is further arranged between the press-in stud 23 and the rotary pressing block 22. The spring is always in a compressed state, and the rotary pressing block 22 is given a downward pressure by the spring so as to be able to press the carrier 1 tightly and prevent the carrier 1 from being taken together when the circuit board 102 is grabbed.

[0039] In combination Figure 4 And Figure 5As shown, the carrier 1 is provided with a positioning pin 11, and the circuit board 102 is provided with a first positioning hole 1021. The positioning pin 11 is inserted into the first positioning hole 1021 to position the circuit board 102 on the carrier 1. Through the first positioning hole 1021 and the positioning pin 11, the carrier 1 and the circuit board 102 can be easily matched and installed, meeting the requirements of circuit board production. The pressure cover 3 is provided with a positioning post 31, and the carrier 1 is provided with a second positioning hole 12. The positioning post 31 is inserted into the second positioning hole 12 to position the pressure cover 3. Specifically, each pressure cover 3 is provided with four positioning posts 31, and the carrier 1 is provided with four corresponding second positioning holes 12. The pressure cover 3 also has multiple hollow parts 32, which can save material costs.

[0040] The reinforcing strip 4 is provided on the carrier 1 and / or the carrier base 2. Specifically, in this embodiment, refer to... Figure 5 As shown, there are three reinforcing strips 4. One reinforcing strip is set on the second carrier piece 14 and the carrier seat 2, and the other two reinforcing strips are set on the carrier seat 2. The two reinforcing strips are set in parallel. The three reinforcing strips are in the shape of "I". The purpose of setting the reinforcing strips is to prevent the carrier 1 or the carrier seat 2 from deforming under high temperature conditions, which would lead to abnormal welding quality. It can also be understood that the reinforcing strips 4 play the role of reinforcing ribs.

[0041] Furthermore, the circuit board 102 is disposed between the carrier 1 and the pressure cover 3. The pressure cover 3 presses against multiple components 1023 on the circuit board 102 to prevent the circuit board 102 from shaking. Specifically, the pressure cover 3 is provided with multiple pressing components 8, which press against the components 1023. The pressure cover 3 is provided with multiple through holes 33. The pressing components 8 pass through the through holes 33 and are disposed on the pressure cover 3 in a way that allows them to move up and down. The upward or downward movement depends mainly on the height of the components 1023. When the components 1023 are higher, the pressing components 8 move upward relative to the cover 3; when the components 1023 are lower, the pressing components 8 move downward relative to the cover 3.

[0042] Furthermore, the crimping assembly 8 includes a crimping member 81 crimped onto the component 1023, a fastener 82 disposed on the crimping member 81, a first elastic member 83 sleeved on the outside of the fastener 82, a guide sleeve 84, and a washer 85. The fastener 82 is specifically a screw. The crimping member 81 has an internal thread that is threadedly connected to the external thread of the screw. The screw passes through the cover plate 3 and can move upwards or downwards relative to the cover plate 3. The first elastic member 83 acts as a buffer. The guide sleeve 84 is disposed on the cover plate 3, and the screw is located in a through hole in the middle of the guide sleeve 84. The screw moves up and down within the guide sleeve 84, which limits the direction of screw movement, ensuring that the pressure is vertical and avoiding lateral forces. The washer 85 also has a through hole in its middle, through which the screw passes. The outer diameter of the washer 85 is larger than the outer diameter of the guide sleeve 84, effectively preventing the screw from detaching from the cover plate 3.

[0043] The welding device also comprises a clamping assembly 5 for clamping the pressure cover 3 to avoid deformation or loosening of the pressure cover 3. Figure 2 and Figure 7 As shown in the drawings, each pressure cover 3 is provided with two oppositely arranged clamping assemblies 5. The clamping assembly 5 comprises a first pressing block 51, a second pressing block 52 and a clamping piece 53. The pressure cover 3 is located between the first pressing block 51 and the second pressing block 52, and the clamping piece 53 is located between the first pressing block 51 and the second pressing block 52 and can rotate relative to the first pressing block 51 and the second pressing block 52. Specifically, the second pressing block 52 is fixedly arranged on the carrier seat 2, the first pressing block 51 is arranged on the pressure cover 3, and the clamping piece 53 is connected to the first pressing block 51 through a first connecting pin 54 and a second connecting pin 55. The first connecting pin 54 is sleeved with an elastic piece 56. The first pressing block 51 is provided with a first through hole 511, and the clamping piece 53 is provided with a second through hole 532. The second connecting pin 55 passes through the first through hole 511 and the second through hole 532 to connect the clamping piece 53 and the first pressing block 51.

[0044] The clamping piece 53 has a clamping hook 531, and the second pressing block 52 has a clamping surface 521. The clamping piece 53 has a clamping state. In the clamping state, the clamping hook 531 is clamped on the clamping surface 521. When it is needed to separate the pressure cover 3 from the clamping assembly 5, the upper end of the clamping piece 53 is pushed, and the upper end of the clamping piece 53 rotates around the second connecting pin 55 towards the middle of the pressure cover 3. At this time, the elastic piece 56 is compressed, the clamping hook 531 is separated from the clamping surface 531, the clamping assembly 5 loses the clamping effect on the pressure cover 3, and the pressure cover 3 can be separated from the clamping assembly 5. The "upper end" here can refer to the up-down and left-right directions shown in the drawings. Figure 2

[0045] When the carrier of the vehicle-mounted power amplifier of the embodiment is assembled, the carrier seat 2 is first placed on the conveying belt, then the carrier 1 is placed on the carrier seat 2, then the circuit board 102 is placed on the carrier 1, and finally the pressure cover 3 is crimped on the circuit board 102. Finally, the assembled carrier is welded by an automatic assembly line. The welding positioning device of the vehicle-mounted power amplifier of the embodiment presses the crimping assembly against the components, so that the components are not easy to shake, i.e., the circuit board is not easy to shake, and the welding work is facilitated.

[0046] As shown in the specification and claims, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list. The method or device can also include other steps or elements. The term "and / or" used herein includes any combination of one or more related listed items.

[0047] ​It should be noted that, unless otherwise specified, when a certain feature is said to be "fixed", "connected" to another feature, it can be directly fixed, connected to another feature, or indirectly fixed, connected to another feature. In addition, the up, down, left, right and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0048] The above examples are only for illustrating the technical concept and characteristics of the utility model, and are a preferred embodiment, and the purpose is that persons skilled in the art can understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model. Any equivalent transformation or modification made according to the principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A soldering apparatus for a car audio amplifier for positioning a circuit board of the car audio amplifier, the soldering apparatus comprising a carrier for carrying the circuit board, characterized in that, The welding device further comprises a cover, a space for accommodating the circuit board is formed between the carrier and the cover, and the cover is provided with a crimping assembly configured to press on components of the circuit board.

2. The welding device of claim 1, wherein, The cover is provided with a through hole, the crimping assembly passes through the through hole and is movably arranged on the cover.

3. The welding device of claim 2, wherein, The crimping assembly comprises a crimping piece, a fastener arranged on the crimping piece, and a first elastic piece sleeved on the fastener, the crimping piece is configured to abut on the component, and the first elastic piece is arranged between the cover and the crimping piece.

4. The welding device of claim 3, wherein, The crimping assembly further comprises a guide sleeve arranged on the cover, and the fastener is located in the guide sleeve.

5. The welding device of claim 4, wherein, The fastener further comprises a gasket, and an outer diameter of the gasket is greater than an outer diameter of the guide sleeve.

6. The welding device of claim 1, wherein, The cover is provided with a plurality of positioning columns, the carrier is provided with second positioning holes, and the positioning columns are inserted into the second positioning holes to position the cover.

7. The welding device of claim 1, wherein, The welding device further comprises a clamping assembly for clamping the cover, the clamping assembly comprises a first pressing block arranged on the cover, a second pressing block arranged on the carrier, and a clamping piece arranged between the first pressing block and the second pressing block, the cover is located between the first pressing block and the second pressing block, and the clamping piece is movable relative to the first pressing block and / or the second pressing block.

8. The welding device of claim 7, wherein, The crimping assembly further comprises a first connecting pin and a second connecting pin for connecting the second pressing block and the clamping piece, and a second elastic piece is sleeved on the first connecting pin.

9. The welding device of claim 8, wherein, The clamping piece has a clamping hook, the second pressing block has a clamping surface, and the clamping piece has a clamping state, in which the clamping hook is clamped on the clamping surface.

10. The welding device of claim 8, wherein, The first pressing block is provided with a first through hole, the clamping piece is provided with a second through hole, and the second connecting pin passes through the first through hole and the second through hole to connect the clamping piece and the first pressing block.

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