Connection structure of infrared remote control receiving circuit assembly of mobile air conditioner
Patent Information
- Application Number
- CN202521935448.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-09
AI Technical Summary
[0005]针对现有技术中所存在的不足，本实用新型提供了一种移动空调红外遥控接收电路组件的连接结构，其解决了现有技术中存在的移动空调采用两段线束对接连接按键显示板和红外遥控接收板时，线束长度难以把控，导致组装困难、易与其他结构件干涉的问题
[0009]通过在所述遥控接收板上配置所述第一排针/第一排母，在所述按键显示板上配置与所述第一排针/第一排母匹配的所述第二排母/第二排针，利用排针排母对插的方式，实现所述遥控接收板与所述按键显示板的电气连接与机械固定，无需使用线束，另外，限定了所述遥控接收板和所述按键显示板之间的垂直间距范围，为排针排母的插拔提供合适安装空间，以便于操作人员进行所述遥控接收板和所述按键显示板的安装操作，从根本上解决了现有技术中存在的移动空调采用两段线束对接连接按键显示板和红外遥控接收板时，线束长度难以把控，导致组装困难、易与其他结构件干涉的问题，使得遥控接收板与按键显示板能够实现高效组装，大大提高了生产加工效率，同时，保证了产品质量。
Smart Images
Figure CN224837775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, and in particular to a connection structure of an infrared remote control receiver circuit assembly for a portable air conditioner. Background Technology
[0002] In the design and production of portable air conditioners, infrared remote control functionality is a crucial element for achieving human-computer interaction and enhancing user experience, making the layout and connection methods of its related components extremely important. However, the current connection structure of the infrared remote control receiver circuit components in portable air conditioners faces numerous problems in practical applications and urgently needs improvement.
[0003] Portable air conditioners typically have a compact structure, usually less than 1 meter in height. To facilitate user interaction, the button display panel is generally located on the top of the portable air conditioner. However, infrared transmission is directional, which limits remote control to a specific angular range. To meet users' needs for comfortable and sensitive remote control, the infrared remote control receiver must be installed on the front of the product (as shown in the attached image). Figure 1 As shown in the image, from an installation perspective, the infrared remote control receiver needs to be located at the bottom of the button display panel, while also maintaining a certain height to avoid being obstructed, which would affect the remote control sensitivity. Furthermore, the soldering process of the infrared remote control receiver must meet the requirements of reflow soldering or wave soldering. However, existing infrared remote control receiver packages cannot simultaneously meet these complex and stringent requirements.
[0004] To solve the above problems, the conventional design method uses a wiring harness to connect the button display board and the infrared remote control receiver board (as shown in the attached diagram). Figure 2 As shown in the diagram, and to ensure assemblability during production, wire harnesses are typically manufactured in two sections and connected via mating connectors. However, this design reveals several drawbacks in actual production: on the one hand, if the wire harness length is just right, employees will face significant difficulties during assembly, resulting in inconvenient operation and reduced production efficiency; on the other hand, if the wire harness is slightly longer, it will lead to installation difficulties, not only causing interference with other structural components during installation, resulting in damage to the wire harness, but also potentially breaking internal wires, leading to product quality defects and causing economic losses and reputational damage to the company. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a connection structure for a portable air conditioner infrared remote control receiver circuit assembly. This structure solves the problem in existing technologies where, when a portable air conditioner uses two wire harnesses to connect the button display board and the infrared remote control receiver board, the length of the wire harness is difficult to control, leading to assembly difficulties and easy interference with other structural components.
[0006] According to an embodiment of this utility model, a connection structure for a portable air conditioner infrared remote control receiver circuit assembly includes a remote control receiver board and a button display board. Both the button display board and the remote control receiver board are installed inside the housing of the portable air conditioner. The button display board is located on the top of the portable air conditioner, and the remote control receiver board and the button display board are perpendicular to each other after installation. The remote control receiver board is equipped with a first row of pins / first row of nuts, and the button display board is equipped with a second row of nuts / second row of pins that match the first row of pins / first row of nuts. The remote control receiver board and the button display board are electrically connected and mechanically fixed through the insertion and mating of the pins and nuts.
[0007] The vertical distance between the remote control receiver board and the button display board is 2.5mm-100mm to provide suitable installation space and facilitate the insertion and removal of pin headers and sockets.
[0008] Compared with the prior art, the present invention has the following beneficial effects:
[0009] By configuring the first row of pins / first row of nuts on the remote control receiver board and configuring the second row of nuts / second row of pins that match the first row of pins / first row of nuts on the button display board, the electrical connection and mechanical fixation of the remote control receiver board and the button display board are achieved by using a pin-and-nut plug-in method, eliminating the need for wiring harnesses. In addition, the vertical spacing range between the remote control receiver board and the button display board is limited, providing suitable installation space for the insertion and removal of pins and nuts, facilitating the installation operation of the remote control receiver board and the button display board by operators. This fundamentally solves the problem in the prior art where the length of the wiring harness is difficult to control when using two-segment wiring harnesses to connect the button display board and the infrared remote control receiver board in portable air conditioners, leading to assembly difficulties and easy interference with other structural components. This allows for efficient assembly of the remote control receiver board and the button display board, greatly improving production efficiency while ensuring product quality. Attached Figure Description
[0010] Figure 1 This is a schematic diagram showing the installation positions of the button display panel and remote control receiver panel on the portable air conditioner.
[0011] Figure 2 This is a connection diagram showing the button display board and the remote control receiver board connected by a wiring harness.
[0012] Figure 3 This is a circuit diagram illustrating the connection structure of a portable air conditioner infrared remote control receiver circuit assembly according to an embodiment of the present invention.
[0013] Figure 4 This is a schematic diagram of the structure of the first or second row of needles in an embodiment of the present invention.
[0014] Figure 5This is a schematic diagram of the structure of the nut E in an embodiment of this utility model.
[0015] Figure 6 This is a schematic diagram of the structure of the nut F in an embodiment of the present invention.
[0016] In the attached diagram: 1. Remote control receiver board; 2. Button display board. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0018] like Figures 3-6 As shown in the figure, this utility model embodiment proposes a connection structure for an infrared remote control receiver circuit assembly for a portable air conditioner, including a remote control receiver board 1 and a button display board 2. Both the button display board 2 and the remote control receiver board 1 are installed inside the casing of the portable air conditioner. The button display board 2 is located on the top of the portable air conditioner, and the remote control receiver board 1 and the button display board 2 are perpendicular to each other after installation. The remote control receiver board 1 is equipped with a first row of pins / first row of nuts, and the button display board 2 is equipped with a second row of nuts / second row of pins that match the first row of pins / first row of nuts. The remote control receiver board 1 and the button display board 2 are electrically connected and mechanically fixed by the insertion and removal of the pins and nuts. The vertical distance between the remote control receiver board 1 and the button display board 2 is in the range of 2.5mm-100mm to provide suitable installation space and facilitate the insertion and removal of the pins and nuts.
[0019] Specifically, the remote control receiver 1 receives signals from the infrared remote control, converts the infrared signals into electrical signals, and then processes and decodes them through internal circuitry to transmit effective control commands to the main control system of the portable air conditioner, thereby enabling remote control of various functions of the portable air conditioner. The button display panel 2 is the local operation and status display interface of the portable air conditioner. Users can directly operate the portable air conditioner (such as turning it on and off, adjusting the temperature, fan speed, mode, etc.) through the buttons on the button display panel 2. At the same time, the display screen on the button display panel 2 can display the operating status, set parameters, and other information of the portable air conditioner in real time, so as to facilitate users to understand the working status of the portable air conditioner.
[0020] The remote control receiver board 1 is equipped with the first row of pins / first row of nuts, and the button display board 2 is equipped with the second row of nuts / second row of pins that match the first row of pins / first row of nuts. This allows the remote control receiver board 1 and the button display board 2 to achieve electrical connection and mechanical fixation through the plug-in connection of the pins and nuts, eliminating the need for wiring harnesses. Compared with the traditional method of connecting the remote control receiver board 1 and the button display board 2 using wiring harnesses, this method fundamentally solves the problem in the prior art where the length of the wiring harness is difficult to control when using two-segment wiring harnesses to connect the button display board 2 and the infrared remote control receiver board 1, leading to assembly difficulties and easy interference with other structural components. This allows the remote control receiver board 1 and the button display board 2 to be assembled efficiently, greatly improving production efficiency while ensuring product quality.
[0021] After being installed on the portable air conditioner, the remote control receiver board 1 and the button display board 2 are perpendicular to each other, thereby reducing the space occupied by the remote control receiver board 1 and the button display board 2 and making full use of the limited space inside the portable air conditioner. The vertical distance between the remote control receiver board 1 and the button display board 2 is 2.5mm-100mm, which provides suitable installation space to facilitate the operator's installation of the remote control receiver board 1 and the button display board 2.
[0022] Further, the first or second row of pins includes pin B and pin C, and the second or first row of pins includes pin E and pin F. Pin B and pin E are connected by interlocking, and pin C and pin F are connected by interlocking.
[0023] The spacing between adjacent pins of pin row B is different from that between adjacent pins of pin row C to prevent mismatch between pin row B and pin row F, and between pin row C and pin row E.
[0024] Specifically, the spacing between adjacent pins of pin header B is preferably 1 mm, and the spacing between adjacent pins of pin header C is preferably 1.27 mm, so that the spacing between adjacent female pins of pin header E is 1 mm, and the spacing between adjacent female pins of pin header F is 1.27 mm. By setting two pin headers, pin header B and pin header C, on the remote control receiver board 1 or the button display board 2, and setting two female pins, female pins E and female pin header F, on the corresponding button display board 2 or the remote control receiver board 1, and the spacing between adjacent pins of pin header B and pin header C is inconsistent, a foolproof design can be achieved to prevent pin header B from mismatching with female pin header F, and pin header C from mismatching with female pin header E.
[0025] Furthermore, the remote control receiver board 1 is equipped with the pin header B and the pin header C, and the button display board 2 is equipped with the pin header E and the pin header F. The pin header B and the pin header C are both two-position pin headers, and the pin header E and the pin header F are both two-position surface mount pin headers.
[0026] The first pin of the pin header B is connected to the positive terminal of the power supply of the remote control receiver board 1, the second pin of the pin header B is connected to the negative terminal of the power supply of the remote control receiver board 1, and the first pin and the second pin of the pin header C are both connected to the data output voltage port of the infrared receiver head of the remote control receiver board 1.
[0027] The first pin of the connector E is connected to the positive terminal of the power supply of the key display board 2, the second pin of the connector E is connected to the negative terminal of the power supply of the key display board 2, and the first and second pins of the connector F are both connected to the data input voltage port of the infrared receiver of the key display board 2.
[0028] Specifically, such as Figure 3 As shown, two pin headers are configured on the remote control receiver board 1: pin header B and pin header C. Two female headers are configured on the button display board 2: female header E and female header F. The remote control receiver board 1 has three signal ports: the first port is VCC (positive power supply), the second port is GND (negative power supply), and the third port is Vout (data output voltage of the infrared receiver). Pin header B is a two-position plug-in pin header with a 90-degree bend and a pin spacing of 1mm (e.g., ...). Figure 4 As shown), the pin header C is a two-position plug-in pin header with 90-degree bent pins and a pin spacing of 1.27mm (as shown). Figure 4 As shown), in order to interface with the remote control receiver board 1, the button display board 2 also requires 3 signal ports. The first port is VCC (positive power supply), the second port is GND (negative power supply), and the third port is Vout (data input voltage of the infrared receiver). The header E is a two-position surface mount header with a pin spacing of 1mm (e.g., ...). Figure 5 As shown), the nut F is a two-position surface mount nut with a pinhole spacing of 1.27mm (as shown). Figure 6 (As shown). The first port of the remote control receiver board 1 is connected to the first pin of the pin header B, the second port of the remote control receiver board 1 is connected to the second pin of the pin header B, the third port of the remote control receiver board 1 is connected to the first and second pins of the pin header C, the first port of the button display board 2 is connected to the first pin of the female header E, the second port of the button display board 2 is connected to the second pin of the female header E, and the third port of the button display board 2 is connected to the first and second pins of the female header F.
[0029] Furthermore, an opening is made at the bottom of the pinhole of the first or second row of pins on the printed circuit board so that the pins of the first or second row of pins can pass through the opening of the second or first row of pins, thereby increasing the length of the pins inserted into the pin and strengthening the connection.
[0030] Preferably, the opening diameter of the first or second nut is 0.65 mm, so as to match the diameter of the pin, ensuring that the pin can pass smoothly through the opening of the nut, and avoiding the reduction of the structural strength of the nut or the pin shaking in the opening of the nut due to the opening being too large.
[0031] Furthermore, the length of the pin of the first pin row or the pin of the second pin row inserted into the second pin row or the pin of the first pin row is at least twice the height of the second pin row or the first pin row.
[0032] Specifically, by inserting the pin header into the socket for a length that is twice or more than the height of the socket, the reliability of the connection between the pin header and the socket can be improved. The total length of the pin header can be flexibly designed according to the space dimensions. The height of the first or second socket is less than 2.5mm to meet the processing technology of single-sided reflow and wave soldering of single-sided printed circuit boards. The height of the first or second socket is preferably 2.3mm, so as to save space to the maximum extent while meeting the connection function of the pin header and socket, and make the layout more reasonable.
[0033] Furthermore, the pins of the first or second pin row are 90-degree bent pins, and the bending direction of the bent pins of the first or second pin row is consistent with the slotting direction of the second or first pin row, so as to achieve vertical insertion.
[0034] Specifically, since the remote control receiver board 1 and the button display board 2 are perpendicular to each other after installation, using a 90-degree bent pin as the pin of the first or second pin row can reduce the space occupied and facilitate assembly and maintenance. The matching of the 90-degree bent pin with the slot direction of the pin row ensures that the pin row is accurately inserted into the pin row, achieving a stable and reliable vertical electrical connection.
[0035] The detailed working process of this embodiment is as follows:
[0036] Pin headers B and C are configured on the remote control receiver board 1, and pin headers E and F are configured on the keypad display board 2. The first pin of pin header B is connected to the positive power supply terminal of the remote control receiver board 1, and the second pin of pin header B is connected to the negative power supply terminal of the remote control receiver board 1. The first and second pins of pin header C are both connected to the data output voltage port of the infrared receiver head of the remote control receiver board 1. The first pin of pin header E is connected to the positive power supply terminal of the keypad display board 2, and the second pin of pin header E is connected to the negative power supply terminal of the keypad display board 2. The first and second pins of pin header F are both connected to the negative power supply terminal of the remote control receiver board 1. Connect the data input voltage port of the infrared receiver head of the button display board 2, then plug the pin header B and the nut header E together, and plug the pin header C and the nut header F together to achieve electrical connection and mechanical fixation between the remote control receiver board 1 and the button display board 2 without the need for a wiring harness. In addition, it limits the vertical spacing range between the remote control receiver board and the button display board, providing suitable installation space for the insertion and removal of the pin headers and nuts, so as to facilitate the installation operation of the remote control receiver board 1 and the button display board 2 by the operator. This allows the remote control receiver board 1 and the button display board 2 to be assembled efficiently, greatly improving production and processing efficiency, while ensuring product quality.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A connection structure for an infrared remote control receiver circuit assembly for a portable air conditioner, comprising a remote control receiver board and a button display board, wherein both the button display board and the remote control receiver board are installed inside the casing of the portable air conditioner, the button display board is located on the top of the portable air conditioner, and the remote control receiver board and the button display board are perpendicular to each other after installation, characterized in that: The remote control receiver board is equipped with a first row of pins / first row of nuts, and the button display board is equipped with a second row of nuts / second row of pins that match the first row of pins / first row of nuts. The remote control receiver board and the button display board are electrically connected and mechanically fixed by the interlocking of the pins and nuts. The vertical distance between the remote control receiver board and the button display board is 2.5mm-100mm to provide suitable installation space and facilitate the insertion and removal of pin headers and sockets.
2. The connection structure of the portable air conditioner infrared remote control receiver circuit assembly as described in claim 1, characterized in that: The first or second row of pins includes pin B and pin C, and the second or first row of pins includes pin E and pin F. Pin B and pin E are connected by a plug-in connection, and pin C and pin F are connected by a plug-in connection. The spacing between adjacent pins of pin row B is different from that between adjacent pins of pin row C to prevent mismatch between pin row B and pin row F, and between pin row C and pin row E.
3. The connection structure of the portable air conditioner infrared remote control receiver circuit assembly as described in claim 2, characterized in that: The spacing between adjacent pins in pin row B is 1 mm, and the spacing between adjacent pins in pin row C is 1.27 mm.
4. The connection structure of the portable air conditioner infrared remote control receiver circuit assembly as described in claim 2, characterized in that: The remote control receiver board is equipped with the pin header B and the pin header C, and the button display board is equipped with the pin header E and the pin header F. The pin header B and the pin header C are both two-position pin headers, and the pin header E and the pin header F are both two-position surface mount pin headers. The first pin of the pin header B is connected to the positive terminal of the power supply of the remote control receiver board, the second pin of the pin header B is connected to the negative terminal of the power supply of the remote control receiver board, and the first pin and the second pin of the pin header C are both connected to the data output voltage port of the infrared receiver head of the remote control receiver board. The first pin of the connector E is connected to the positive terminal of the power supply of the key display board, the second pin of the connector E is connected to the negative terminal of the power supply of the key display board, and the first and second pins of the connector F are both connected to the data input voltage port of the infrared receiver of the key display board.
5. The connection structure of the portable air conditioner infrared remote control receiver circuit assembly as described in claim 1, characterized in that: The pinholes of the first or second row of pins are made into the printed circuit board to allow the pins of the first or second row of pins to pass through the openings of the second or first row of pins, thereby increasing the length of the pins inserted into the pins and strengthening the connection.
6. The connection structure of the portable air conditioner infrared remote control receiver circuit assembly as described in claim 5, characterized in that: The opening diameter of the first row of females or the second row of females is 0.65mm.
7. The connection structure of the portable air conditioner infrared remote control receiver circuit assembly as described in claim 5, characterized in that: The length of the pin of the first or second pin row inserted into the pin of the second or first pin row is at least twice the height of the second or first pin row.
8. The connection structure of the infrared remote control receiver circuit assembly for a portable air conditioner as described in claim 7, characterized in that: The height of the first row of females or the second row of females is less than 2.5mm to meet the processing requirements of single-sided reflow and wave soldering of single-sided printed circuit boards.
9. The connection structure of the infrared remote control receiver circuit assembly for a portable air conditioner as described in claim 8, characterized in that: The height of the first row of females or the second row of females is 2.3 mm.
10. The connection structure of a portable air conditioner infrared remote control receiver circuit assembly as described in claim 1, characterized in that: The first or second row of pins has 90-degree bent pins, and the bending direction of the bent pins of the first or second row of pins is consistent with the slotting direction of the second or first row of pins, so as to achieve vertical insertion.