Terminal mechanism of LED display screen

Abstract

The utility model discloses a terminal mechanism of an LED display screen, and relates to the technical field of LED display. The electric connector comprises an electric connecting plate provided with a through hole; the terminal body is provided with a clamping piece, the clamping piece is clamped and fixed in the through hole, and the terminal body is welded on the electric connecting plate in a clamped and fixed state to form a welding part. The clamping part is pressed into the through hole of the electric connecting plate and is naturally clamped and fixed, so that the terminal is prevented from inclining during welding, the pin of the terminal is more convenient to weld manually, and the welding efficiency is improved. And the terminals are firmer and not easy to fall off, so that good contact is ensured, and the signal transmission effect is ensured.

Description

Technical Field

[0001] Generally speaking, the utility model belongs to the technical field of LED display, and specifically relates to a terminal mechanism of an LED display screen. Background Art

[0002] The existing LED display screen is composed of modules and a box body for installing several modules. The module includes a bottom shell, a PCB board, etc. The voltage and signal are transmitted between the module and the box body through signal terminals: there is a HUB board on the box body, and a male seat terminal for combining voltage and signal is welded on its surface. A female seat terminal matching the male seat terminal is welded on the PCB board of the module, and the male seat terminal and the female seat terminal are inserted into each other to realize the transmission of voltage and signal.

[0003] Problems existing in the existing male seat terminals are as follows: the height of the terminal is relatively high. During the overcurrent reflow soldering, the upper layer of the soldering equipment is likely to touch the terminal, resulting in component loss, and it is impossible to realize equipment mounting, and manual mounting is required. Moreover, due to the structure of the male terminal itself being larger at the top and smaller at the bottom, it is not firm after manual soldering, and the soldered terminal will be inclined, resulting in poor signal transmission of the terminal.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] A series of simplified concepts are introduced in the summary of the utility model section, which will be further elaborated in detail in the specific implementation section. The summary of the utility model section does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] A main object of the present utility model is to overcome the defect that the terminals in the above-mentioned prior art are not firm and prone to inclination, and to provide a terminal mechanism of an LED display screen.

[0007] To achieve the above-mentioned utility model object, the present utility model adopts the following technical solutions:

[0008] According to one aspect of the present utility model, there is provided a terminal mechanism of an LED display screen, including:

[0009] An electric connection plate provided with a through hole; and

[0010] A terminal body provided with a clamping member, the clamping member being clamped and fixed in the through hole, and the terminal body being welded to the electric connection plate in the clamped and fixed state to form a welding part.

[0011] According to an embodiment of the present utility model, the clamping member includes a limiting rod and a clamping head connected to the lower end of the limiting rod. The limiting rod extends downward from the bottom of the terminal body through the through hole, and the clamping head is clamped below the electric connection plate.

[0012] According to an embodiment of the present utility model, the width of the clamping head gradually decreases along the downward extension direction.

[0013] According to an embodiment of the present utility model, a step portion is provided at the connection between the clamping head and the limiting rod. The step portion is clamped with the bottom surface of the electric connection plate, and a lower guiding inclined surface is provided at the lower part of the clamping head, which can enable the clamping member to be inserted into the through hole along the lower guiding inclined surface.

[0014] According to an embodiment of the present utility model, the clamping member is provided with two groups of symmetric limiting rods and clamping heads. There is a gap between the two limiting rods, and the gap gradually increases along the extension direction of the clamping member.

[0015] According to an embodiment of the present utility model, a plurality of the clamping members are provided at the bottom of the terminal body, and the plurality of clamping members are respectively located at both ends of the terminal body.

[0016] According to an embodiment of the present utility model, the bottom surface of the terminal body is rectangular, and the clamping member is arranged at the edge position close to the short side of the terminal body and in the middle of the edge position.

[0017] According to an embodiment of the present utility model, a slot is provided at the upper part of the terminal body, and the slot is used for detachably electrically plugging with other terminals.

[0018] According to an embodiment of the present utility model, metal pins are provided at the bottom of the terminal body, and the metal pins are welded on the electric connection plate to form the welding portion.

[0019] According to an embodiment of the present utility model, a plurality of the terminal bodies are provided on the electric connection plate.

[0020] As can be seen from the above technical solutions, the present utility model provides a terminal mechanism for an LED display screen, including: a terminal body is provided on an electric connection plate, and a clamping member is provided on the terminal body and is clamped and fixed in a through hole of the electric connection plate. The terminal body is welded to the electric connection plate in the clamped and fixed state to form a welding portion. The clamping portion is pressed into the through hole of the electric connection plate and is naturally clamped and fixed, avoiding the inclination of the terminal during welding, making it more convenient to manually weld the terminal pins, and improving the welding efficiency. The terminal is more firm and not easy to drop parts, ensuring good contact. Description of the Drawings

[0021] The various objects, features, and advantages of the present utility model will become more apparent by considering the following detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present utility model and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar components. Among them:

[0022] Figure 1 It is a schematic diagram of the electrical connection board structure of a terminal mechanism of an LED display screen shown according to an exemplary embodiment.

[0023] Figure 2 It is a schematic diagram of a terminal body of a terminal mechanism of an LED display screen shown according to an exemplary embodiment.

[0024] Figure 3 It is a schematic cross-sectional view of a terminal body of a terminal mechanism of an LED display screen shown according to an exemplary embodiment.

[0025] Among them, the reference numeral descriptions are as follows:

[0026] 100 - Electrical connection board, 101 - Through hole;

[0027] 200 - Terminal body, 210 - Insertion slot, 220 - Metal pin, 230 - Clamping member, 231 - Limiting rod, 232 - Clamping head, 233 - Gap, 234 - Lower guiding slope, 235 - Step portion. Detailed implementation manners

[0028] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present utility model will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0029] The features, structures, or characteristics described can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present utility model. However, those skilled in the art will realize that the technical solutions of the present utility model can be practiced without one or more of the specific details, or other methods, components, materials, etc. can be adopted. In other cases, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present utility model.

[0030] In the following description, numerous specific details are given to provide a more thorough understanding of the present utility model. However, it will be apparent to those skilled in the art that the present utility model can be practiced without one or more of these details. In other instances, to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0031] Referring to Figure 1 and Figure 2 As shown, in one embodiment, a terminal mechanism for an LED display screen is provided, including: an electrical connection board 100 and a terminal body 200, and a plurality of terminal bodies 200 are arranged on the electrical connection board 100. Through holes 101 are arranged on the electrical connection board 100. The terminal body 200 is provided with a clamping member 230, and the clamping member 230 is clamped and fixed in the through hole 101. The terminal body 200 is welded to the electrical connection board 100 in the clamped and fixed state to form a welding part. By fixing the terminal body 200 in the through hole 101 of the electrical connection board 100 through the clamping member 230, the terminal body 200 can be positioned and fixed at the same time during welding, avoiding terminal inclination and component dropping.

[0032] Referring to Figure 2 As shown, in one example, the clamping member 230 includes a limiting rod 231 and a clamping head 232 connected to the lower end of the limiting rod 231. Specifically, the limiting rod 231 extends downward from the bottom of the terminal body 200 through the through hole 101, and the clamping head 232 is clamped below the electrical connection board 100. Among them, the width of the clamping head 232 gradually decreases along the downward extension direction. The limiting rod 231 of the clamping member 230 can be set as a cylindrical shape, the through hole 101 can be set as a circular shape, and the clamping head 232 can be set as a block structure with elastic upper width and lower width to facilitate the clamping head to be pressed into the through hole 101 and clamped in the through hole 101. When the clamping head 232 is clamped in the through hole 101 and located below the circuit board 100, in a specific example, the height of the terminal body 200 can be set to 22.3 mm. The terminal body 200 is relatively high, and during reflow soldering, it will hit components and cause component dropping on the upper layer of the machine. Moreover, the terminal is large at the top and small at the bottom, and it is easy to incline. After welding, it is not firm and will cause problems in signal transmission. In this embodiment, the terminal body 200 is positioned at this position through the clamping member 230, which is more convenient for welding positioning and avoids tipping.

[0033] Optionally, the limiting rod 231 and the clamping head 232 of the clamping member 230 can be set in the case where a single limiting rod 231 is connected to a clamping head 232. The clamping head 232 has a certain elasticity and can be squeezed into the through hole 101 to achieve clamping and fixing. The diameter of the limiting rod 231 matches the diameter of the through hole 101, which can ensure that the clamping member 230 is firmly clamped in the through hole 101.

[0034] In a preferred embodiment, referring toFigure 3 As shown, the clamping member 230 is provided with two groups of symmetrical limiting rods 231 and clamping heads 232. There is a gap 233 between the two limiting rods 231, and the gap 233 gradually increases along the extending direction of the clamping member 230. During welding, when it is necessary to fix the terminal body 100, the two limiting rods 231 are squeezed during pinching to reduce the gap 233, and then the clamping head 232 is pressed into the through hole 101. The clamping head 232 can pass through the through hole 101 in the squeezed state. Optionally, the two clamping heads 232 are symmetrical, and when pinched together, they can form an inverted frustum or trapezoid as a whole. In the natural state, the two groups of symmetrical limiting rods and the clamping heads 232 are naturally separated. After the clamping head 232 is clamped at the lower end of the through hole 101, a gap 233 is naturally formed between the two limiting rods 231 and the limiting head 232. The outer side wall of the limiting rod 231 abuts against the hole edge of the through hole 101, and the terminal body 200 is prevented from shaking in the clamped and fixed state.

[0035] Moreover, a stepped portion 235 is provided at the connection between the clamping head 232 and the limiting rod 231. Optionally, the stepped portion 235 protrudes from the connection between the lower end of the limiting rod 231 and the clamping member 230, and the width of the stepped portion 235 is wider than the width of the limiting rod 231. When the terminal body 200 is in the clamped and fixed state, the stepped portion 235 is clamped with the bottom surface of the electrical connection board 100 and is clamped on the lower surface of the electrical connection board 100 to prevent the terminal body 200 from tilting and dropping parts during welding.

[0036] Specifically, a lower guiding inclined surface 234 is provided at the lower part of the clamping head 232, which enables the clamping member 230 to be inserted into the through hole 101 along the lower guiding inclined surface 234. It is more labor-saving for the clamping head 232 to enter the through hole 101. Optionally, the clamping head 232 is wider at the top and narrower at the bottom, and the widest width of the clamping head is smaller than the diameter of the through hole 101, so that it can smoothly pass through the through hole 101 after the two groups of symmetrical structures are pinched together.

[0037] In one example, a plurality of clamping members 230 are provided at the bottom of the terminal body 200, and the plurality of clamping members 230 are respectively located at both ends of the terminal body 200. The clamping members 230 can be arranged on the electrical connection board according to actual application requirements, such as setting 2, 4, etc. Specifically, the bottom surface of the terminal body 200 is rectangular, and the clamping members 230 are arranged at the edge position close to the short side of the terminal body 200 and in the middle of the edge position. In order to further ensure that the clamping and fixing of the terminal body 200 is more stable. Correspondingly, the number of through holes 101 on the electrical connection 100 matches the position and number of the clamping members 230.

[0038] In one example, a plurality of terminal bodies 200 are provided on the electrical connection board 100. A slot 210 is provided in the upper part of the terminal body 200, and the slot 210 is used for detachably electrically plugging with other terminals. For example, the terminal body 200 is a male terminal and needs to be matched and connected with a female terminal. A metal pin 220 is provided at the bottom of the terminal body 200, and the metal pin 220 is welded on the electrical connection board 100 to form a welding part. Manual welding can be selected. Through the above clamping member 230, the terminal body 200 can be prevented from tilting during welding, thereby improving the welding efficiency. Moreover, the manual welding of the terminal pins is more reliable, ensuring good contact and ensuring the signal transmission effect.

[0039] It should be understood that the above-described multiple examples can be utilized in multiple directions (such as inclined, inverted, horizontal, vertical, etc.) and in multiple configurations without departing from the principles of the present invention. The embodiments shown in the drawings are only shown and described as examples of the effective application of the principles of the present invention, and the present invention is not limited to any specific details of these embodiments.

[0040] Of course, once the above description of the representative embodiments is carefully considered, those skilled in the art will easily understand that various modifications, additions, substitutions, deletions, and other changes can be made to these specific embodiments, and these changes are within the scope of the principles of the present invention. Therefore, the foregoing detailed description should be clearly understood as being given only by way of illustration and example, and the spirit and scope of the present invention are defined only by the appended claims and their equivalents.

Claims

1. A terminal mechanism of an LED display screen, characterized in that: include: An electrical connection plate provided with a through hole; and The terminal body is provided with a clamping piece, the clamping piece is clamped and fixed in the through hole, and the terminal body is welded to the electrical connection plate in the clamped and fixed state to form a welding portion.

2. The terminal structure of the LED display screen according to claim 1, characterized in that: The clamping member comprises a limiting rod and a clamping joint connected to the lower end of the limiting rod, the limiting rod extends downward from the bottom of the terminal body and passes through the through hole, and the clamping joint is clamped below the electrical connection plate.

3. The terminal structure of the LED display screen according to claim 2, characterized in that: The width of the card joint gradually decreases along the downward extending direction.

4. The terminal structure of the LED display screen according to claim 2, characterized in that: A step portion is provided at the connection between the clamping joint and the limiting rod, and the step portion is clamped with the bottom surface of the electrical connection plate. A lower guide slope is provided at the lower part of the clamping joint, so that the clamping part can be inserted into the through hole along the lower guide slope.

5. The terminal structure of the LED display screen according to claim 2, characterized in that: The clamping member is configured as two groups of symmetrical limiting rods and clamping joints, a gap is provided between the two limiting rods, and the gap gradually increases along the extending direction of the clamping member.

6. The terminal structure of the LED display screen according to claim 1, characterized in that: A plurality of the clamping parts are arranged at the bottom of the terminal body, and the plurality of the clamping parts are respectively located at two ends of the terminal body.

7. The terminal structure of the LED display screen according to claim 1, characterized in that: The bottom surface of the terminal body is rectangular, and the clamping piece is arranged at an edge position close to a short side of the terminal body and is located in the middle of the edge position.

8. The terminal structure of the LED display screen according to claim 1, characterized in that: A slot is disposed on the upper portion of the terminal body, and the slot is used for detachably and electrically plugging with other terminals.

9. The terminal structure of the LED display screen according to claim 1, characterized in that: A metal pin is disposed at the bottom of the terminal body, and the metal pin is welded on the electrical connection plate to form the welding portion.

10. The terminal structure of the LED display screen according to claim 1, characterized in that: A plurality of the terminal bodies are arranged on the electrical connection plate.

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