Wire pre-fixing piece and workbench for welding terminal of electronic device
Through the design of wire prefixes and terminal positioning parts, the problems of small contact surfaces and complex operation of welding tools are solved, and the welding quality is improved and product reliability is improved, welding operations are simplified and labor intensity is reduced.
Patent Information
- Application Number
- CN202421039287.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the existing welding technology, the contact surface between the welding tool and the target to be welded is small, resulting in uneven welding, long time-consuming, high labor intensity, and easy to cause insufficient welding or missed welding, resulting in unstable electrical connections and affecting product quality.
Design a wire prefix and a workbench for terminal welding of electronic devices. Prefix of the wire through the channels and accommodating parts of the wire prefixes. Combined with the terminal positioning parts, simplify welding operations, increase welding contact surfaces, and improve welding quality.
It reduces the labor intensity of the operator, improves welding efficiency and quality, ensures the reliability of the welded joints, reduces the situation of dummy or unwelded, and improves product reliability.
Smart Images
Figure CN222243255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wire pre-fixing piece and a workbench for welding terminals of electronic devices. Background Art
[0002] Soldering technology is commonly used for welding electrical connection terminals in various electronic devices. Taking a handheld microphone as an example, it is often necessary to connect the electrical connection terminals of the electronic device in the microphone head with the wires in the handle by welding.
[0003] Usually this welding operation requires manual operation by the operator. For example, the operator needs to place the microphone head vertically in a fixing fixture so that the terminal to be connected is in an upright position; after removing the paint coating from the wire, the metal part is inserted into the hole of the terminal. Figure 1a Then bend the metal part of the wire upward, around the top of the terminal, and then bend it downward, as shown in Figure 1b and 1c As shown, the metal part of the wire is roughly wrapped around the terminal; then, the operator holds a welding tool to weld the terminal and the metal part of the wire. The electrical connection between the terminal and the wire is usually achieved by soldering, and Figure 1a-1c In the orientation shown, this soldering operation can usually only be performed on the top of the terminal.
[0004] In addition, in order to facilitate welding, the prior art also uses additional clamps to clamp wires or terminals for temporary fixing.
[0005] However, there are many problems with the above conventional welding methods and clamping:
[0006] (1) For example, Figure 1a-1c When welding in the orientation shown, the contact area between the welding tool and the target is very small (because welding can only be performed at the top when the terminal is upright), the metal parts of the terminal and the wire are heated unevenly and welding takes a long time, resulting in poor welding quality consistency;
[0007] (2) Each welding operation requires bending and winding of the metal part of the wire, which is labor-intensive for the operator. Sometimes, the wire needs to be bent more than 2,000 times a day, which causes serious damage to the operator's wrist over the years. Similarly, when using additional clamps, the operator is required to clamp and release the clamps many times, which is labor-intensive. In addition, when the wire and terminal sizes are very small, the clamp operation is very difficult and the clamping effect is poor.
[0008] (3) The method of welding by bending the metal part of the wire and wrapping it around the terminal is not fool-proof. In other words, if the welding is insufficient or leaking, the metal part of the wire and the terminal are still in a loose or unstable electrical connection state. Even if a test is performed at this time, the feedback result may be that the electrical connection is not achieved. However, such insufficiently welded or leaking joints will become loose or even disconnected after the microphone is used for a long time, causing serious quality problems.
[0009] Therefore, there is a need in the art for a welding technology that can solve at least one of the above problems. Utility Model Content
[0010] In response to the above-mentioned problems and needs, the present disclosure proposes a new technical solution, which solves the above-mentioned problems and brings other technical effects by adopting the following technical features.
[0011] The utility model provides a wire pre-fixing part, characterized in that it comprises: a channel extending through the body of the wire pre-fixing part, an opening passing through the body of the wire pre-fixing part and connected to the channel; and a wire accommodating portion arranged adjacent to the opening and suspended above the channel.
[0012] Preferably, the wire pre-fixing member is a polyhedral component having a top surface and a side surface connected to the top surface; the channel extends from the top surface through the body of the wire pre-fixing member to the side surface.
[0013] Preferably, the opening and the wire accommodating portion are provided at a corner between the top surface and the side surface.
[0014] Preferably, the wire pre-fixing member is a rectangular parallelepiped component, wherein: the channel extends obliquely relative to the length direction of the rectangular parallelepiped; or the channel extends parallel to the length direction of the rectangular parallelepiped.
[0015] Preferably, the wire accommodating portion has at least one groove on a side facing the channel, the at least one groove extends in the same direction as the channel and has a contour conforming to the shape of the wire to be accommodated.
[0016] The utility model also provides a workbench for welding terminals of an electronic device, the electronic device comprising a first component and a second component, the workbench comprising: a first component accommodating member for placing the first component; a second component accommodating member for placing the second component; and a wire pre-fixing member as described above, which is detachably arranged on the second component accommodating member or formed integrally with the second component accommodating member, so that when the first component is placed in the first component accommodating member and the second component is placed in the second component accommodating member, the wire from the first component is positioned by the wire pre-fixing member so as to be able to contact the terminal of the second component.
[0017] Preferably, the workbench further comprises a terminal positioning member, wherein the terminal positioning member is arranged on the second component accommodating member and is located on a side of the wire pre-fixing member facing away from the first component accommodating member.
[0018] Preferably, the terminal positioning member includes a PCB board positioning feature portion, wherein, when the second component is placed in the second component receiving member, the PCB board positioning feature portion engages with a PCB board on which the terminal is disposed on the second component, so as to keep the terminal in a position to be welded, and to allow the terminal in the position to be welded to be suspended above the PCB board positioning feature portion.
[0019] Preferably, the second component receiving member is configured such that, when the second component is placed in the second component receiving member, the terminal is positioned in a horizontal direction such that a plane of the terminal is parallel to the horizontal direction.
[0020] Preferably, the first component receiving piece has a receiving groove inclined relative to a vertical direction.
[0021] Compared to Figure 1a-Figure 1c Compared with the conventional welding method shown in the figure, the welding method provided by the workbench according to the utility model uses a simple overlapping operation to replace the manual winding operation, which greatly reduces the operator's work intensity and improves the work efficiency; and the welding contact surface is increased during welding, the terminals are heated evenly, and the welding quality is improved; the welding joint structure formed in this way also makes it possible to reliably detect the situation of cold welding or unwelded welding through testing, thereby ensuring product reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1a-Figure 1c It is a schematic diagram of conventional wire and terminal welding technology;
[0023] Figure 2 A schematic diagram of a workbench according to a preferred embodiment of the utility model;
[0024] Figure 3 for Figure 2 A magnified view of part A;
[0025] Figure 4 The state of the wire and the terminal when the wire and the terminal are welded using the workbench according to the utility model;
[0026] Figure 5 A schematic diagram of the workbench viewed from another angle;
[0027] Figure 6 for Figure 5 A magnified view of part B; DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present disclosure. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.
[0029] Unless otherwise defined, the technical terms or scientific terms used herein shall have the common meanings understood by those skilled in the art in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. When the number of components is not specified, the number of components may be one or more; similarly, words such as "one", "the", "" and similar words do not necessarily indicate a quantity limit. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "install", "set", "connect" or "connected" and similar words are not limited to physical or mechanical installation, setting, connection, but may include electrical installation, setting, connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate the relative orientation relationship when the device is in use or the orientation relationship shown in the drawings. When the absolute position of the described object changes, the relative position relationship may also change accordingly.
[0030] The technical solution according to the present utility model is described below with reference to the accompanying drawings.
[0031] Figure 2 A workbench for soldering electronic device terminals according to a preferred embodiment of the present invention is shown. The electronic device (not shown) may include a first component and a second component, and the first component may have a wire (e.g. Figure 4The wire 9) described above, and the second component may have a terminal to be welded to the wire 9 (for example Figure 4 Terminal 8 shown).
[0032] The electronic device may be, for example, a microphone, and further, the first component may be a microphone handle, and the second component may be a microphone head. Typically, the microphone handle includes components such as a battery, and wires drawn from the battery need to be soldered to terminals on a PCB circuit board in the microphone head to power other electronic components of the microphone.
[0033] The accompanying drawings illustrate the structure of a workbench according to a preferred embodiment of the present utility model by taking welding between a wire and a terminal in a microphone as an example.
[0034] Specifically, the workbench according to this embodiment includes: a first component holder 1 for placing a first component (such as a microphone handle); a second component holder 2 for placing a second component (such as a microphone head); and a specially designed wire pre-fixing member 3, which is detachably arranged on the second component holder 2 or formed integrally with the second component holder 2.
[0035] To increase production, Figure 2 The workbench shown includes three groups of first component receiving parts and second component receiving parts. However, it should be understood that more or fewer first component receiving parts and second component receiving parts can be arranged in the workbench as needed. It should also be understood that, depending on the number of wires to be welded, one or more wire pre-fixing parts 3 can be arranged on each second component receiving part 2. For example, in the embodiment shown in the drawings, two wire pre-fixing parts 3 are arranged.
[0036] With this workbench, when a first component is placed in the first component receiving member 1 and a second component is placed in the second component receiving member 2, the wire 9 from the first component is positioned by the wire pre-fixing member 3 so as to be contactable with the terminal 8 of the second component (see Figure 4 ), so that after the necessary operation by the operator (described in detail later), the wire 9 and the terminal 8 can be automatically welded by an automatic welding machine (not shown).
[0037] Further preferably, the first component receiving member 1 may have a receiving groove 11 inclined relative to the vertical direction. Through this arrangement, the first component can be placed in the receiving groove 11 at an angle, which is ergonomic and convenient for subsequent operations.
[0038] Also preferably, when the second component is placed in the second component receiving member 2, the terminal 8 may be positioned in the horizontal direction so that the plane of the terminal 8 is parallel to the horizontal direction.
[0039] Figure 3 Shows Figure 2The enlarged view of part A in FIG. 1 specifically shows the wire pre-fixing member 3 according to the preferred embodiment of the utility model.
[0040] Specifically, the wire pre-fixing member 3 includes: a channel 31 extending through the body of the wire pre-fixing member 3; an opening 32 passing through the body of the wire pre-fixing member 3 and connected to the channel 31; and a wire accommodating portion 33 disposed adjacent to the opening 32 and suspended above the channel 31. Figure 3 As shown, the conductor pre-fixing element 3 can be detachably placed in the recess 21 of the second component receiving element 2 .
[0041] The welding operation related to the wire pre-fixing member 3 is described below. First, the first component is placed in the first component receiving member 1, and the wire 9 (such as Figure 4 3, the wire 9 will be extended from the first component; then, the operator can press the wire 9 into the channel 31 from the opening 32, and push the wire 9 toward the wire accommodating portion 33; after the operator releases the wire 9, the wire 9 will rebound upward and get stuck on the wire accommodating portion 33 due to its certain elasticity, thereby achieving the pre-fixation of the wire before welding; in this state, the paint coating portion of the wire is retained in the wire pre-fixing member 3, and the metal portion (the portion to be welded) exposed after the paint coating is stripped off extends outside the wire pre-fixing member 3 for subsequent welding operations.
[0042] Compared with the prior art which requires the use of special clamps to clamp the wires before and after welding, with the wire pre-fixing device of the utility model with a special structure, the operator only needs to perform simple wire pressing and pulling operations to achieve the pre-fixation of the wires, which greatly reduces the labor intensity of the operator.
[0043] After the second component is placed in the second component receiving member 2 and the terminal 8 is placed in the horizontal direction, see further Figure 4 , the operator only needs to pass the metal part of the wire from the upper surface of one end 81 of the terminal 8 through the hole 80 of the terminal 8 and overlap it to the lower surface of the other end 82 of the terminal 8, so that the metal part of the wire 9 and the terminal 8 are in a state to be welded. In this state, the metal part of the wire 9 overlaps the surfaces of the two ends 81 and 82 of the terminal 8 to form a temporary joint to be welded, and then the brazing head of the automatic welding machine can be vertically lowered and the solder can be evenly applied to the temporary joint. Due to the fluidity of the solder, the solder will wrap the entire temporary joint from above and below, so that after welding, the wire 9 is fully and firmly welded to the two ends of the terminal 8.
[0044] Therefore, compared to Figure 1a-Figure 1cCompared with the conventional welding method shown in the figure, the welding method provided by the workbench according to the utility model uses a simple overlapping operation to replace the manual winding operation, which greatly reduces the operator's work intensity and improves the work efficiency; and the welding contact surface is increased during welding, the terminals are heated evenly, and the welding quality is improved; the welding joint structure formed in this way also makes it possible to reliably detect the situation of cold welding or unwelded welding through testing, thereby ensuring product reliability.
[0045] In addition, the present invention also proposes some additional improvements to the above components.
[0046] Preferably, the wire pre-fixing member 3 may be a polyhedral component. Figure 3 As shown, the wire pre-fixing member 3 may be a rectangular parallelepiped member (which is a special case of the polyhedron as described above). The wire pre-fixing member 3 may have a top surface 34 and a side surface 35 connected to the top surface. Furthermore, the channel 31 may extend from the top surface 34 through the body of the wire pre-fixing member 3 to the side surface 35.
[0047] More preferably, if Figure 3 As shown, the opening 32 and the wire receiving portion 33 may be disposed at a corner 36 between the top surface 34 and the side surface 35 .
[0048] Further preferably, when the wire pre-fixing member 3 is a rectangular parallelepiped component, the channel 31 can be relative to the length direction of the rectangular parallelepiped (such as Figure 3 The dotted line L in the figure extends obliquely, such as Figure 3 This obliquely extending channel 31 can cooperate with the oblique receiving groove 11 as described above, so that the operator can more easily operate the wire 9 from the first component and conveniently introduce the wire 9 into the wire pre-fixing member 3, so that the wire 9 is also obliquely received in the wire pre-fixing member 3, so as to facilitate the subsequent operation of passing the wire 9 through the hole 80 of the terminal 8.
[0049] According to a preferred embodiment not shown, the channel can extend parallel to the length direction of the cuboid, that is, it can extend from one end face of the cuboid to the other end face opposite thereto, and in this case, the wire pre-fixing member itself can be placed at an angle. Figure 3 The groove 21 of the second component receiving member 2 shown can be arranged to extend obliquely, and the wire pre-fixer in the embodiment not shown is itself placed obliquely in the groove 21, so that the channel in the wire pre-fixer also extends obliquely.
[0050] Preferably, the side of the wire accommodating portion 33 facing the channel 31 has at least one groove 37, the direction in which the at least one groove 37 extends is consistent with the direction in which the channel 31 extends, and the contour of the at least one groove 37 conforms to the shape of the wire 9 to be accommodated. By providing the groove 37, it is easier to position and hold the received wire 9. According to an embodiment not shown, when the wire 9 contains multiple strands of wire, the wire accommodating portion 33 can also be modified to have multiple grooves 37 to accommodate each strand of the wire respectively.
[0051] Preferably, the workbench according to the present invention may further include a terminal positioning member 4, such as Figure 5-6 The terminal positioning member 4 is arranged on the second component receiving member 2 and is located on the side of the wire pre-fixing member 3 away from the first component receiving member 1. Through the terminal positioning member 4, after the second component is placed in the second component receiving member 2, the terminal 8 can be positioned at a position that is conducive to overlapping and welding with the wire 9, so as to reduce the problem of reduced welding efficiency or even welding failure caused by poor terminal positioning before welding.
[0052] Further preferably, the terminal locating member 4 includes a PCB board positioning feature portion 41, so that when the second component is placed in the second component accommodating member 2, the PCB board positioning feature portion 41 engages with a PCB board (not shown) on the second component on which the terminal 8 is provided, so as to keep the terminal 8 in the position to be welded, and make the terminal in the position to be welded hang above the PCB board positioning feature portion 41.
[0053] It should be understood that the position, structure and shape of the PCB board positioning feature 41 can be flexibly designed according to the position, structure and shape of the PCB board of the second component. Figure 5-6 In the preferred embodiment shown, in order to adapt to the characteristics of the PCB board in the microphone head, an inclined protrusion protruding from the body of the terminal positioning member 4 is provided as the PCB board positioning feature portion 41, so that after the microphone head is placed in the second component holder 2, the operator can simply clamp the PCB board in the microphone head on the PCB board positioning feature portion 41, so that the terminal 8 extending from the PCB board is just located in a horizontal position relative to the wire 9, and then the operator can conveniently perform the overlapping operation of the wire 9 and the terminal 8 as described above, and after completing the overlapping operation, the plane of the joint to be welded formed by the wire 9 and the terminal 8 is also in a horizontal plane, and then the welding operation can be completed by the welding head of the vertically moving automatic welding machine.
[0054] In addition, the terminal positioning member 4 can be detachably connected to the second component receiving member 2 by bolts, so that the terminal positioning members 4 of different sizes and structures can be replaced according to the structure of the PCB in different second components, so as to increase the applicability of the workbench of the utility model.
[0055] The exemplary implementation modes of the present disclosure are described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.
Claims
1. A wire pre-fixing member (3), characterized in that: include: A channel (31) extends through the body of the wire pre-fixing member (3), An opening (32) passes through the body of the wire pre-fixing member (3) and is connected to the channel (31); The wire accommodating portion (33) is arranged adjacent to the opening (32) and suspended above the channel (31).
2. The wire pre-fixing member (3) according to claim 1, characterized in that: The wire pre-fixing member (3) is a polyhedral component having a top surface (34) and a side surface (35) connected to the top surface; The channel (31) extends from the top surface (34) through the body of the wire pre-fixing member (3) to the side surface (35).
3. The wire pre-fixing member (3) according to claim 2, characterized in that: The opening (32) and the wire accommodating portion (33) are arranged at a corner (36) between the top surface (34) and the side surface (35).
4. The wire pre-fixing member (3) according to claim 1, characterized in that: The wire pre-fixing member (3) is a rectangular parallelepiped member, wherein: The channel (31) extends obliquely relative to the length direction of the cuboid; or The channel (31) extends parallel to the length direction of the rectangular parallelepiped.
5. The wire pre-fixing member according to any one of claims 1 to 4, characterized in that: The wire accommodating portion (33) has at least one groove (37) on one side facing the channel (31), the at least one groove (37) extending in the same direction as the channel (31) extending and the at least one groove (37) having a contour conforming to the outer shape of the wire (9) to be accommodated.
6. A workbench for soldering terminals of an electronic device, the electronic device comprising a first component and a second component, characterized in that: The workbench includes: A first component receiving member (1) for receiving a first component; A second component receiving member (2) for receiving a second component; The wire pre-fixing member (3) according to any one of claims 1 to 5 is detachably arranged on the second component receiving member (2) or is formed integrally with the second component receiving member (2), so that when the first component is placed in the first component receiving member (1) and the second component is placed in the second component receiving member (2), the wire (9) from the first component is positioned by the wire pre-fixing member (3) so as to be able to contact the terminal (8) of the second component.
7. The workbench for soldering electronic device terminals as claimed in claim 6, characterized in that: It also comprises a terminal positioning piece (4), which is arranged on the second component receiving piece (2) and is located on a side of the wire pre-fixing piece (3) facing away from the first component receiving piece (1).
8. The workbench for soldering electronic device terminals as claimed in claim 7, characterized in that: The terminal positioning member (4) comprises a PCB board positioning feature portion (41), wherein, when the second component is placed in the second component receiving member (2), the PCB board positioning feature portion (41) engages with a PCB board on which the terminal (8) is arranged on the second component, so as to keep the terminal (8) in a position to be welded, and to allow the terminal (8) in the position to be welded to be suspended above the PCB board positioning feature portion (41).
9. The workbench for soldering electronic device terminals as claimed in claim 8, characterized in that: The second component receiving part (2) is arranged so that when the second component is placed in the second component receiving part (2), the terminal (8) is positioned in the horizontal direction so that the plane of the terminal (8) is parallel to the horizontal direction.
10. A workbench for soldering electronic device terminals as claimed in any one of claims 6 to 8, characterized in that: The first component receiving piece (1) has a receiving groove (11) which is inclined relative to the vertical direction.