A terminal for connecting a circuit board
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]当端子插入至电路板上时，由于端子与电路板之间的卡接结构较少，端子与电路板之间容易出现松动，导致端子与电路板结构的稳定性较低，会对连接的电子元件产生影响
1.当安装柱插入安装槽中时，通过固定块与固定槽卡接配合，使得壳体能够与电路板能够实现固定，工作人员能够通过卡接的形式将壳体与电路板进行装配，为工作人员安装端子的过程提供便利，使得端子与电路板之间的连接更加稳定，减少端子从电路板上脱离的可能性。
Smart Images
Figure CN224637452U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of circuit boards, and in particular to a terminal for connecting circuit boards. Background Technology
[0002] A terminal is a device used to connect electronic components on a circuit board. It is commonly used in appliances such as refrigerators, washing machines, and air conditioners. It is mainly used to connect circuits on different devices or different modules in a circuit, so that current or signals can flow or be transmitted.
[0003] In related technologies, the terminal includes a housing and a pin. The housing has a socket for inserting the pin and is used to fix it to the circuit board.
[0004] When the terminal is inserted into the circuit board, the connection between the terminal and the circuit board is relatively weak, which can easily lead to loosening and low stability of the terminal and circuit board structure, affecting the connected electronic components. Utility Model Content
[0005] To improve the stability of the terminal and the circuit board structure, this application provides a terminal for connecting the circuit board.
[0006] This application provides a terminal for connecting a circuit board, which adopts the following technical solution: A terminal for connecting a circuit board includes a housing for mounting on the circuit board. The housing has a mounting post, and the circuit board has a mounting slot for inserting the mounting post. The mounting post has a fixing block, and the mounting slot in the circuit board has a fixing slot for inserting the fixing block. The fixing block and the fixing slot can be engaged in a snap-fit relationship.
[0007] By adopting the above technical solution, when the mounting post is inserted into the mounting slot, the fixing block engages with the fixing slot, which allows the housing to be fixed to the circuit board. The operator can assemble the housing and the circuit board by snapping them together, which facilitates the operator's terminal installation process, makes the connection between the terminal and the circuit board more stable, and reduces the possibility of the terminal detaching from the circuit board.
[0008] Optionally, the mounting post is provided with a protrusion, and the groove wall of the mounting slot in the circuit board is provided with a groove for the protrusion to be inserted. When the protrusion is inserted into the groove, the protrusion restricts the housing from rotating.
[0009] By adopting the above technical solution, the bump is inserted into the groove, which can restrict the rotation of the housing and reduce the possibility of the terminal rotating relative to the circuit board, thereby making the connection between the terminal and the circuit board more stable.
[0010] Optionally, the housing is provided with a plurality of pins and a plurality of insertion holes for the pins to pass through. A first inclined surface is provided in the insertion hole. The distance from the first inclined surface to the pin gradually decreases along the direction in which the pin is inserted into the insertion hole. The first inclined surface is used to guide the pin into the insertion hole.
[0011] By adopting the above technical solution, the distance from the first inclined surface to the pin gradually decreases along the direction of the pin insertion into the socket, so that the first inclined surface can guide the pin into the socket, allowing the operator to insert the pin into the socket more smoothly and facilitating the installation of the terminal.
[0012] Optionally, the pin includes a first connecting part and a second connecting part, the second connecting part being bent and formed on the first connecting part, and a wire fixing hole for inserting the second connecting part is provided on the housing, and a locking block is provided on the wall of the wire fixing hole, the locking block being located on the movement path of the second connecting part disengaging from the wire fixing hole.
[0013] By adopting the above technical solution, the locking block is located on the moving path of the second connecting part detaching from the fixing hole, so that the locking block can restrict the pin from detaching from the fixing hole, making the pin more firmly fixed in the fixing hole and reducing the possibility of the pin detaching from the fixing hole.
[0014] Optionally, the housing includes a first housing and a second housing, the first housing and the second housing are in communication, the second housing is disposed on the circuit board, and a mounting groove is formed between the surface of the first housing near the circuit board and the circuit board, the mounting groove being used for the insertion of other electronic components.
[0015] By adopting the above technical solution, an assembly groove is formed between the surface of the first shell near the circuit board and the circuit board. The assembly groove is used for inserting other electronic components. After the operator connects the terminals to the circuit board, the operator can insert other electronic components into the assembly groove, so that the surface of the shell away from the circuit board can be flatter.
[0016] Optionally, the mounting post is provided with a sliding groove, the protrusion is slidably connected in the sliding groove, and a placement strip is slidably connected to the mounting post; when the placement strip is disengaged from the movement path of the protrusion, the protrusion is fully inserted into the sliding groove; when the placement strip is located on the movement path of the protrusion, the protrusion extends out of the sliding groove and can be inserted into the groove.
[0017] By adopting the above technical solution, when the staff needs to remove the housing from the circuit board, the staff first slides the placement strip to make the placement strip disengage from the movement path of the protrusion. At this time, the protrusion is fully inserted into the sliding groove and disengaged from the groove, which makes it easier for the staff to pull the mounting post out of the mounting groove. This reduces the damage to the mounting post caused by the staff forcefully pulling and inserting the mounting post, thereby extending the service life of the terminal.
[0018] Optionally, the sliding groove is inclined, and the distance from the sliding groove to the housing gradually increases along the direction in which the protrusion is inserted into the sliding groove.
[0019] By adopting the above technical solution, when the placement strip leaves the movement path of the protrusion, the distance from the sliding groove to the housing gradually increases along the direction in which the protrusion inserts into the sliding groove, allowing the protrusion to automatically insert into the sliding groove along its inclined direction. The operator can then adjust the protrusion using the placement strip. Optionally, a limiting block is slidably connected to the housing, and a limiting groove is provided on the placement strip for the limiting block to be inserted. When the housing is installed on the circuit board, the limiting block can be inserted into the limiting groove, and the placement strip is fixed.
[0020] By adopting the above technical solution, when the housing is installed on the circuit board, the operator slides the limiting block into the limiting groove to fix the placement strip, reducing the possibility of the mounting post coming out of the mounting groove due to the sliding of the placement strip, making the fixation between the terminal and the circuit board more reliable.
[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. When the mounting post is inserted into the mounting slot, the fixing block engages with the fixing slot to fix the housing to the circuit board. The operator can assemble the housing and the circuit board by snapping them together, which facilitates the installation of terminals and makes the connection between the terminals and the circuit board more stable, reducing the possibility of the terminals detaching from the circuit board.
[0022] 2. By inserting a bump into the groove, the bump can restrict the rotation of the housing, reducing the possibility of the terminal rotating relative to the circuit board, thereby making the connection between the terminal and the circuit board more stable. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of Example 1; Figure 2 It is Example 1 Figure 1 Sectional view along line AA; Figure 3 This is a structural schematic diagram of Example 2; Figure 4 It is Example 2 Figure 3 A sectional view along line BB.
[0024] Reference numerals: 1. Housing; 11. First housing; 12. Second housing; 13. Socket; 131. First inclined surface; 14. Pin; 141. First connecting part; 142. Second connecting part; 15. Wire fixing hole; 151. Locking block; 16. Assembly groove; 17. Placement hole; 18. Limiting block; 181. Movable groove; 2. Mounting post; 21. Fixing block; 22. Protrusion; 23. Sliding groove; 24. Placement strip; 241. Limiting groove. Detailed Implementation
[0025] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0026] Example 1 This embodiment discloses a terminal for connecting a circuit board. (Refer to...) Figure 1 A terminal for connecting a circuit board includes a housing 1 for fixedly connecting to the circuit board. The housing 1 includes a first housing 11 and a second housing 12, the second housing 12 being integrally formed on the first housing 11 and fixedly connected to the circuit board. The first housing 11 and the second housing 12 are perpendicular to each other and communicate with each other. A mounting post 2 is fixedly connected to the surface of the second housing 12 near the circuit board, and a mounting groove for inserting the mounting post 2 is provided on the circuit board.
[0027] Reference Figure 1 There are two mounting posts 2, symmetrically arranged along the centerline of the housing 1. Each mounting post 2 is semi-cylindrical. A fixing block 21 is fixedly connected to the outer surface of each mounting post 2 away from the other. The fixing block 21 surrounds the outer surface of the mounting post 2. A fixing slot is provided in the mounting groove of the circuit board for the fixing block 21 to be inserted. When the mounting post 2 is inserted into the mounting slot, the fixing block 21 can be inserted into the fixing slot, and the housing 1 and the circuit board achieve a snap-fit engagement.
[0028] Reference Figure 1 Two protrusions 22 are fixedly connected to the outer surface of the mounting post 2, and the two protrusions 22 are located on opposite sides of the mounting post 2. The mounting groove in the circuit board has a mounting groove for the protrusions 22 to be inserted. When the protrusions 22 are inserted into the groove, the protrusions 22 can restrict the rotation of the housing 1 relative to the circuit board.
[0029] Reference Figure 2 The housing 1 has multiple connector holes 13, which are arranged in an array along the length of the first housing 11. A pin 14 is inserted into each connector hole for electrical connection to electronic components. A first inclined surface 131 is formed on the end face of the connector hole near the insertion direction of the pin 14. The distance from the first inclined surface 131 to the pin 14 gradually decreases along the direction in which the pin 14 is inserted into the connector hole 13. The first inclined surface 131 guides the pin 14 into the connector hole 13.
[0030] Reference Figure 2 The insertion pin 14 includes a first connecting portion 141 and a second connecting portion 142. The second connecting portion 142 is bent and formed on the first connecting portion 141, and the first connecting portion 141 and the second connecting portion 142 are arranged perpendicular to each other. A plurality of wire-fixing holes 15 are provided on the second housing 12 for insertion of the insertion pin 14. The plurality of wire-fixing holes 15 are arranged in an array along the length direction of the second housing 12, and the through-path of the wire-fixing holes 15 is perpendicular to the through-path of the insertion hole 13. A locking block 151 is fixedly connected to the hole walls on opposite sides of the wire-fixing holes 15, and the locking block 151 is located on the movement path of the second connecting portion 142 as it disengages from the wire-fixing hole 15.
[0031] Reference Figure 2 A mounting groove 16 is formed between the surface of the first shell 11 near the circuit board and the circuit board, and the mounting groove 16 is used for inserting other electronic components.
[0032] The implementation principle of Example 1 is as follows: the worker inserts the mounting post 2 on the housing 1 into the mounting groove. At this time, the fixing block 21 is inserted into the fixing groove to fix the housing 1 and the circuit board. The protrusion 22 is inserted into the groove to restrict the rotation of the housing 1. The housing 1 can be fixed on the circuit board.
[0033] Example 2 Reference Figure 3 The difference between this embodiment and embodiment 1 is that sliding grooves 23 are provided on the outer surfaces of the opposite sides of the mounting post 2, and the protrusion 22 is slidably connected in the corresponding sliding groove 23. The sliding groove 23 is inclined, and the distance from the sliding groove 23 to the housing 1 gradually increases along the direction in which the protrusion 22 is inserted into the sliding groove 23.
[0034] Reference Figure 3 A placement strip 24 is slidably connected to the surface of the mounting post 2 near another mounting post 2. A placement hole 17 is provided on the surface of the housing 1 away from the circuit board for inserting the placement strip 24. The end of the placement strip 24 away from the circuit board extends out of the placement hole 17. The sliding path of the placement strip 24 intersects with the sliding path of the protrusion 22. When the placement strip 24 disengages from the moving path of the protrusion 22, the protrusion 22 is fully inserted into the sliding groove 23, facilitating the removal of the mounting post 2 from the mounting groove. When the placement strip 24 is on the moving path of the protrusion 22, the protrusion 22 is inserted into the groove, thus fixing the mounting post 2 to the mounting groove.
[0035] Reference Figure 4A limiting block 18 is slidably connected to the surface of the housing 1 away from the circuit board. A movable groove 181 for the limiting block 18 to slide is formed on the surface of the housing 1 away from the circuit board. A limiting groove 241 for the limiting block 18 to be inserted is formed on the placement strip 24. When the housing 1 is installed on the circuit board, the limiting block 18 can be inserted into the limiting groove 241 to fix the placement strip 24.
[0036] The implementation principle of Example 2 is as follows: When the staff needs to pull out the housing 1, the staff first slides the limiting block 18 out of the limiting groove 241 to unlock the placement strip 24, and then pulls the placement strip 24 away from the housing 1. The protrusion 22 slides along the inclined direction of the sliding groove 23 until it exits the groove, and the staff can easily remove the housing 1 from the circuit board.
[0037] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0038] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.
Claims
1. A terminal for connecting circuit boards, characterized by: The device includes a housing (1) for mounting on a circuit board. The housing (1) has a mounting post (2) and the circuit board has a mounting groove for inserting the mounting post (2). The mounting post (2) has a fixing block (21) and the mounting groove in the circuit board has a fixing groove for inserting the fixing block (21). The fixing block (21) and the fixing groove can be engaged.
2. A terminal for connecting circuit boards according to claim 1, characterized in that: The mounting post (2) is provided with a protrusion (22), and the groove wall of the mounting slot in the circuit board is provided with a groove for the protrusion (22) to be inserted. When the protrusion (22) is inserted into the groove, the protrusion (22) restricts the housing (1) from rotating.
3. A terminal for connecting circuit boards according to claim 1, characterized in that: The housing (1) is provided with a plurality of pins (14) and a plurality of insertion holes (13) for the pins (14) to pass through. A first inclined surface (131) is provided in the insertion hole (13). The distance from the first inclined surface (131) to the pin (14) gradually decreases along the direction in which the pin (14) is inserted into the insertion hole (13). The first inclined surface (131) is used to guide the pin (14) to be inserted into the insertion hole (13).
4. A terminal for connecting circuit boards according to claim 3, characterized in that: The pin (14) includes a first connecting part (141) and a second connecting part (142). The second connecting part (142) is bent and formed on the first connecting part (141). The housing (1) has a wire fixing hole (15) for the second connecting part (142) to be inserted. The wall of the wire fixing hole (15) is provided with a locking block (151). The locking block (151) is located on the movement path of the second connecting part (142) disengaging from the wire fixing hole (15).
5. A terminal for connecting a circuit board according to claim 1, characterized in that: The housing (1) includes a first housing (11) and a second housing (12), the first housing (11) and the second housing (12) are connected, the second housing (12) is disposed on the circuit board, and an assembly groove (16) is formed between the surface of the first housing (11) near the circuit board and the circuit board, the assembly groove (16) is used for inserting other electronic components.
6. A terminal for connecting circuit boards according to claim 2, characterized in that: The mounting post (2) has a sliding groove (23), the protrusion (22) is slidably connected in the sliding groove (23), the mounting post (2) has a slidably connected placement strip (24), the housing (1) has a placement hole (17) for the placement strip (24) to be inserted, and the placement strip (24) extends out of the placement hole (17); when the placement strip (24) is disengaged from the movement path of the protrusion (22), the protrusion (22) is fully inserted into the sliding groove (23); when the placement strip (24) is located on the movement path of the protrusion (22), the protrusion (22) extends out of the sliding groove (23) and the protrusion (22) can be inserted into the groove.
7. A terminal for connecting circuit boards according to claim 6, characterized in that: The sliding groove (23) is inclined, and the distance from the sliding groove (23) to the housing (1) gradually increases along the direction in which the protrusion (22) is inserted into the sliding groove (23).
8. A terminal for connecting circuit boards according to claim 6, characterized in that: A limiting block (18) is slidably connected on the housing (1), and a limiting groove (241) is provided on the placement strip (24) for the limiting block (18) to be inserted. When the housing (1) is installed on the circuit board, the limiting block (18) can be inserted into the limiting groove (241), and the placement strip (24) is fixed.