Switch and resistor connection structure, door lock and vehicle

Abstract

The utility model belongs to the technical field of automobile door lock, disclose a switch and resistance connecting structure, door lock and vehicle. The switch and resistance connecting structure, including resistance, two and above switch, resistance includes first end and second end, first end is used for with the connector connection, second end respectively with first switch and second switch series connection. Through setting resistance respectively with two and above switch series connection, make resistance play the role of dividing voltage, and then improve the influence of current fluctuation to switch, simultaneously, the second end of resistance is respectively connected with the first switch and the second switch in series, so that the first switch and the second switch share a resistance, the overall structure occupies small space, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, and in particular to a switch and resistor connection structure, a door lock, and a vehicle. Background Technology

[0002] In door lock control systems, microswitches, as key triggering elements, are widely used in core components such as lock body status detection and button triggering. Because microswitches lack integrated resistors, they must be directly connected to the door lock's circuitry during operation. When the door lock is in use, power supply disruptions or circuit interruptions can cause abnormal fluctuations in the current flowing through the microswitch. When these fluctuations exceed the microswitch's tolerance range, they can exacerbate wear, oxidation, or welding of the internal metal contacts, leading to poor contact, delayed response, or even complete failure. In customer-facing scenarios, such malfunctions not only affect the normal opening and closing function of the door lock but can also result in serious consequences such as user entrapment or security failure, significantly reducing product reliability and user experience. To mitigate the impact of current fluctuations on microswitches, related technologies typically employ a separate series resistor in each microswitch branch to stabilize the current through the resistor's current-limiting effect. However, this approach requires an independent resistor for each microswitch, which increases the number of components and wiring complexity in the lock's internal circuitry, leading to higher manufacturing costs. Furthermore, the dispersed arrangement of multiple resistors occupies more internal space within the lock body, hindering the miniaturization design of the lock. Utility Model Content

[0003] The purpose of this utility model is to provide a switch and resistor connection structure, a door lock and a vehicle. This switch and resistor connection structure can improve the impact of current fluctuations on the switch, while being low in cost and occupying little space.

[0004] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, a switch-resistor connection structure is provided, including a resistor and two or more switches. The resistor includes a first end and a second end, the first end being used to connect to a connector, and the second end being connected in series with two or more switches respectively.

[0005] Preferably, the switch includes a first switch and a second switch. The first switch has a first external terminal, and the second switch has a second external terminal. The first external terminal can be connected to a connector via a wire harness, and the second external terminal can be connected to a connector via a wire harness.

[0006] Preferably, the first switch further includes a first internal resistance connection terminal, and the second switch further includes a second internal resistance connection terminal. The first internal resistance connection terminal and the second internal resistance connection terminal are connected to the second end of the resistor through a wire harness.

[0007] Preferably, the switch and resistor connection structure further includes a third switch, which has a third external terminal and a third internal resistance connection terminal. The third external terminal can be connected to a connector via a wire harness, and the third internal resistance connection terminal is connected in series with the second end of the resistor via a wire harness.

[0008] Preferably, the switch and resistor connection structure further includes a fourth switch, which has a fourth external terminal and a fourth internal resistance connection terminal. The fourth external terminal can be connected to a connector via a wire harness, and the fourth internal resistance connection terminal is connected in series with the second end of the resistor via a wire harness.

[0009] Preferably, the first switch, the second switch, the third switch and the fourth switch are all micro switches.

[0010] Preferably, the micro switch includes a housing, contacts, and an actuator. The housing contains a switching circuit, and the contacts can contact or separate from the actuator to connect or disconnect the switching circuit.

[0011] Preferably, the actuator is a lever, one end of which is rotatably connected to the housing, and the other end of which can contact or separate from the contact point.

[0012] Secondly, a door lock is provided, which includes a connector, a detection element, and a switch-resistance connection structure of any of the above technical solutions. The connector is connected between the switch-resistance connection structure and the detection element through a wire harness. The detection element is used to detect the continuity of the circuit in the switch-resistance connection structure.

[0013] Thirdly, a vehicle is provided that includes a door lock based on the aforementioned technical solution.

[0014] The beneficial effects of this utility model are as follows: A switch-resistor connection structure, a door lock, and a vehicle are provided. The switch-resistor connection structure sets a resistor in series with two or more switches, so that the resistor acts as a voltage divider, thereby improving the impact of current fluctuations on the switches. At the same time, the second end of the resistor is connected in series with two or more switches, so that multiple switches share a single resistor. The overall structure occupies little space and has low cost. Attached Figure Description

[0015] Figure 1 This is a first-view structural schematic diagram of the switch and resistor connection structure provided by this utility model; Figure 2 This is a second-view structural schematic diagram of the switch and resistor connection structure provided by this utility model; Figure 3 This is a circuit diagram of the switch and resistor connection structure provided by this utility model.

[0016] In the diagram: 1. Resistor; 11. First terminal; 12. Second terminal; 2. First switch; 21. First external terminal; 22. First internal resistance connection terminal; 3. Second switch; 31. Second external terminal; 32. Second internal resistance connection terminal; 4. Third switch; 41. Third external terminal; 42. Third internal resistance connection terminal; 5. Fourth switch; 51. Fourth external terminal; 52. Fourth internal resistance connection terminal; 6. Connectors; 7. Test components. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] Firstly, please refer to Figures 1 to 3 This embodiment provides a switch-resistor connection structure, including a resistor 1 and two or more switches. The resistor 1 includes a first end 11 and a second end 12. The first end 11 is used to connect to a connector 6, and the second end 12 is connected in series with two or more switches respectively. This configuration, by connecting the resistor 1 in series with two or more switches, allows the resistor 1 to act as a voltage divider, thereby improving the impact of current fluctuations on the switches. Simultaneously, the second end 12 of the resistor 1 is connected in series with two or more switches, allowing multiple switches to share a single resistor 1. The overall structure occupies little space and has low cost.

[0022] Alternatively, please refer to Figure 2 and Figure 3 The switch system includes a first switch 2 and a second switch 3. The first switch 2 has a first external terminal 21, and the second switch 3 has a second external terminal 31. The first external terminal 21 can be connected to a connector 6 via a wiring harness, and the second external terminal 31 can also be connected to the connector 6 via a wiring harness. This configuration allows the first switch 2 and the second switch 3 to connect to different circuit systems, thereby enabling different functions. Each circuit system functions as an independent module, facilitating individual testing, replacement, or upgrades. If one switch malfunctions, only that module needs to be replaced, without requiring extensive modifications to the entire system, simplifying the maintenance and installation of the switch-resistor connection structure.

[0023] Specifically, one of the first switch 2 and the second switch 3 can be a door slightly open switch, and the other of the first switch 2 and the second switch 3 can be a door fully open switch.

[0024] Furthermore, the first switch 2 also includes a first internal resistance connection terminal 22, and the second switch 3 also includes a second internal resistance connection terminal 32. The first internal resistance connection terminal 22 and the second internal resistance connection terminal 32 are connected together to the second terminal 12 of the resistor 1 via a wiring harness. With this configuration, by connecting the resistor 1 in series with the first switch 2 and the second switch 3 respectively, the current flowing through the first switch 2 and the second switch 3 can be limited simultaneously. When the load of the circuit containing the first switch 2 or the second switch 3 changes and the current fluctuates, it can prevent the current flowing through the first switch 2 or the second switch 3 from becoming too large and causing damage or failure. By using a single resistor 1, the current fluctuation situation in the circuit containing the first switch 2 and the circuit containing the second switch 3 can be improved simultaneously. The overall structure occupies little space, is easy to arrange, and reduces the cost of the structure.

[0025] Optionally, the switch-resistor connection structure also includes a third switch 4. The third switch 4 is provided with a third external terminal 41 and a third internal resistance connection terminal 42. The third external terminal 41 can be connected to the connector 6 via a wiring harness, and the third internal resistance connection terminal 42 is connected in series with the second terminal 12 of the resistor 1 via a wiring harness. This configuration, by adding the third switch 4, further expands the functionality of the switch-resistor connection structure. Specifically, the third switch 4 can be a hollow switch.

[0026] Preferably, the switch-resistor connection structure further includes a fourth switch 5, which has a fourth external terminal 51 and a fourth internal resistance connection terminal 52. The fourth external terminal 51 can be connected to the connector 6 via a wire harness, and the fourth internal resistance connection terminal 52 is connected in series with the second terminal 12 of the resistor 1 via a wire harness. This configuration, by adding the fourth switch 5, further expands the functionality of the switch-resistor connection structure.

[0027] Different loads or signal paths can be controlled by the first switch 2, the second switch 3, the third switch 4, and the fourth switch 5. More complex logic functions can also be achieved through combined control to meet user needs. Understandably, in other embodiments, the number of switches can be adaptively increased or decreased according to user requirements. By setting multiple switches, and connecting the second terminal 12 of resistor 1 in series with multiple switches, the current fluctuation of the circuit containing multiple switches can be improved, while the overall structure occupies less space, is easier to arrange, and reduces structural costs.

[0028] Preferably, the first switch 2, the second switch 3, the third switch 4, and the fourth switch 5 are all micro switches. Micro switches have the advantages of high sensitivity and fast response, and can complete the circuit's conduction or disconnection in a very short time, ensuring the circuit's timely response.

[0029] Specifically, please refer to Figure 1 and Figure 2 A micro switch comprises a housing, contacts, and an actuator. The housing houses a switching circuit, and the contacts can engage or disengage with the actuator to connect or disconnect the switching circuit. Micro switches are used to implement the door lock control functions corresponding to various switching circuits.

[0030] Furthermore, the actuator is a lever, with one end rotatably connected to the housing and the other end capable of contacting or separating from the contacts. In other embodiments, the actuator may also be a button, which, when pressed, causes the contacts to connect or disconnect the circuit.

[0031] Secondly, please refer to Figure 3A door lock is provided, comprising a connector 6, a detection element 7, and the aforementioned switch-resistance connection structure. The connector 6 is connected between the switch-resistance connection structure and the detection element 7 via a wiring harness. The detection element 7 is used to detect the continuity of the circuit in the switch-resistance connection structure. The connector 6 facilitates door lock assembly and improves installation efficiency. Specifically, the detection element 7 is an electronic control unit; through the circuit continuity signal fed back by the detection element 7, the operator can monitor the door lock's status in real time.

[0032] Thirdly, a vehicle is provided that includes the aforementioned door lock.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A switch-resistor connection structure, characterized in that, It includes a resistor (1) and two or more switches. The resistor (1) includes a first end (11) and a second end (12). The first end (11) is used to connect to the connector (6), and the second end (12) is connected in series with two or more of the switches.

2. The switch and resistor connection structure according to claim 1, characterized in that, The switch includes a first switch (2) and a second switch (3). The first switch (2) has a first external terminal (21), and the second switch (3) has a second external terminal (31). The first external terminal (21) can be connected to the connector (6) via a wire harness, and the second external terminal (31) can be connected to the connector (6) via a wire harness.

3. The switch and resistor connection structure according to claim 2, characterized in that, The first switch (2) further includes a first internal resistance connection terminal (22), and the second switch (3) further includes a second internal resistance connection terminal (32). The first internal resistance connection terminal (22) and the second internal resistance connection terminal (32) are connected to the second end (12) of the resistor (1) through a wire harness.

4. The switch and resistor connection structure according to claim 2, characterized in that, The switch and resistor connection structure also includes a third switch (4), which is provided with a third external terminal (41) and a third internal resistance connection terminal (42). The third external terminal (41) can be connected to the connector (6) through a wire harness, and the third internal resistance connection terminal (42) is connected in series with the second end (12) of the resistor (1) through a wire harness.

5. The switch and resistor connection structure according to claim 4, characterized in that, The switch and resistor connection structure also includes a fourth switch (5), which is provided with a fourth external terminal (51) and a fourth internal resistance connection terminal (52). The fourth external terminal (51) can be connected to the connector (6) through a wire harness, and the fourth internal resistance connection terminal (52) is connected in series with the second end (12) of the resistor (1) through a wire harness.

6. The switch and resistor connection structure according to claim 5, characterized in that, The first switch (2), the second switch (3), the third switch (4) and the fourth switch (5) are all micro switches.

7. The switch and resistor connection structure according to claim 6, characterized in that, The micro switch includes a housing, contacts, and an actuator. The housing contains a switching circuit, and the contacts can contact or separate from the actuator to connect or disconnect the switching circuit.

8. The switch and resistor connection structure according to claim 7, characterized in that, The actuator is a lever, one end of which is rotatably connected to the housing, and the other end of which can contact or separate from the contact point.

9. A door lock, characterized in that, The door lock includes a connector (6), a detection element (7), and a switch and resistor connection structure as described in any one of claims 1-8. The connector (6) is connected between the switch and resistor connection structure and the detection element (7) via a wire harness. The detection element (7) is used to detect the continuity of the circuit in the switch and resistor connection structure.

10. A vehicle, characterized in that, The vehicle includes the door lock as described in claim 9.

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