Combination switch endurance testing apparatus

Abstract

The utility model provides a kind of combined switch endurance test equipment, it is related to electric vehicle switch test technical field.The combined switch endurance test equipment includes clamping tool and switch switching device;Clamping tool is used to load measured switch;Switch switching device includes: driving part, transmission part and trigger piece;Driving part is connected with transmission part, trigger piece is oppositely arranged with measured switch, and trigger piece is connected with transmission part.The combined switch endurance test equipment can realize the clamping fixation and repeated trigger test of measured switch, especially suitable for the durability test of electric vehicle combined switch, also can realize the detection and regulation of trigger force, and can realize the detection of voltage, current, voltage drop and trigger force value on combined switch.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle switch testing technology, and in particular to a combination switch durability testing device. Background Technology

[0002] Electric vehicle combination switches typically integrate multiple functional modules, including lighting control (such as high beam, low beam and turn signals), power system regulation (such as driving mode switching, cruise control, reversing control and one-button start function), and signal and warning devices (such as hazard warning lights and horn).

[0003] In existing technologies, to assess the lifespan of such switches, pneumatic actuation is typically used to repeatedly trigger the switch to verify its continued functionality after a preset number of operations. However, for combination switches, the different triggering methods for each function key (e.g., pressing, tossing) and the significant differences in the required triggering force between different switches make it difficult for existing testing equipment to comprehensively verify the durability of each function key in a combination switch. Therefore, there is currently a lack of combination switch durability testing equipment with high adaptability and precise control capabilities. Utility Model Content

[0004] The purpose of this invention is to provide a durability testing device for combination switches, so as to realize the durability testing of combination switches.

[0005] In a first aspect, the combined switch durability testing equipment provided by this utility model includes: a clamping fixture and a switch switching device; The clamping fixture is used to load the switch under test; The switching device includes: a driving component, a transmission component, and a triggering component; The driving component is connected to the transmission component, the trigger component is disposed opposite to the switch under test, and the trigger component is connected to the transmission component.

[0006] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the driving component includes: a first servo motor and a first driving gear connected to the first servo motor; The transmission component includes a first rack that engages with the first drive gear; The trigger includes a first striking pin connected to the first rack.

[0007] In conjunction with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein the first rack is connected to the first slider, the first slider is slidably engaged with the first slide rail, and the first slide rail is arranged parallel to the first rack.

[0008] In conjunction with the first possible implementation of the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the driving component further includes: a second servo motor and a second drive gear connected to the second servo motor; The transmission component includes a second rack that engages with the second drive gear; The trigger element includes a second striking pin connected to the second rack.

[0009] In conjunction with the third possible implementation of the first aspect, this utility model provides a fourth possible implementation of the first aspect, wherein the second rack is connected to the second slider, the second slider is slidably engaged with the second slide rail, and the second slide rail is arranged parallel to the second rack.

[0010] In conjunction with the first aspect, this utility model provides a fifth possible implementation of the first aspect, wherein the driving component includes: a third servo motor and a third driving gear connected to the third servo motor; The transmission component includes a third rack that engages with the third drive gear; The trigger includes a pawl connected to the third rack.

[0011] In conjunction with the fifth possible implementation of the first aspect, this utility model provides a sixth possible implementation of the first aspect, wherein the third rack is connected to the third slider, the third slider is slidably engaged with the third slide rail, and the third slide rail is arranged parallel to the third rack.

[0012] In conjunction with the first aspect, this utility model provides a seventh possible implementation of the first aspect, wherein the clamping fixture includes: a base, a clamping seat, and a clamping member; The clamp is mounted on the base, the clamping member is mounted on the clamp, and a clamping opening is formed between the clamping member and the clamp.

[0013] In conjunction with the first aspect, this utility model provides an eighth possible implementation of the first aspect, wherein the clamping fixture includes: a shaft seat and a handle mandrel connected to the shaft seat; The handle spindle is provided with a circumferential limiting groove extending along the axial direction.

[0014] In conjunction with the first aspect, this utility model provides a ninth possible implementation of the first aspect, wherein the combined switch durability testing device further includes an input module and a detection module; the input module is used to connect to the switch under test, and the detection module is connected to the switch switching device and / or the switch under test.

[0015] The present invention provides the following advantages: the switch under test is mounted using a clamping fixture. The switch switching device includes a driving component, a transmission component, and a trigger component. The driving component is connected to the transmission component, and the trigger component is arranged opposite to the switch under test and connected to the transmission component. This allows for repeated pressing, toggling, and other triggering actions on the switch under test, making it particularly suitable for durability testing of combination switches in electric vehicles.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the combination switch durability testing equipment provided in this embodiment of the utility model; Figure 2 A schematic diagram of a clamping fixture, a switch switching device, and a switch under test in a combination switch durability testing device provided in this embodiment of the utility model; Figure 3 A schematic diagram of a switch switching device for a combined switch durability testing device provided in this embodiment of the utility model. Figure 1 ; Figure 4 A schematic diagram of a switch switching device for a combined switch durability testing device provided in this embodiment of the utility model. Figure 2 ; Figure 5 A schematic diagram of another switching device for the combined switch durability testing equipment provided in this embodiment of the utility model; Figure 6 A schematic diagram of a clamping fixture and a switch under test for a combination switch durability testing device provided in this embodiment of the utility model; Figure 7 This is a schematic diagram of another clamping fixture for the combination switch durability testing equipment provided in this embodiment of the utility model.

[0019] Icons: 100-Clamping fixture; 110-Base; 120-Clamping seat; 130-Clamping component; 140-Shaft seat; 150-Handle spindle; 151-Limiting groove; 200-Switch switching device; 210-Drive component; 211-First servo motor; 212-First drive gear; 213-Second servo motor; 214-Second drive gear; 215-Third servo motor; 216-Third drive gear; 220-Transmission component; 221-First rack; 222-Second rack; 223-First slider; 224-First slide rail; 225-Second slider; 226-Second slide rail; 227-Third rack; 228-Third slider; 229-Third slide rail; 230-Trigger component; 231-First striker; 232-Second striker; 233-Paw; 300-Switch under test. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0023] like Figure 1 and Figure 2As shown in the figure, the combination switch durability testing equipment provided in this embodiment of the present invention includes: a clamping fixture 100 and a switch switching device 200; the clamping fixture 100 is used to mount the switch under test 300; the switch switching device 200 includes: a driving member 210, a transmission member 220, and a trigger member 230; the driving member 210 is connected to the transmission member 220, and the trigger member 230 is disposed opposite to the switch under test 300, and the trigger member 230 is connected to the transmission member 220. The switch under test 300 may include a rocker switch, a toggle switch, a push-button switch, etc.

[0024] Specifically, the switch switching device 200 is disposed on one side of the clamping fixture 100 and is used to drive the trigger 230 to perform reciprocating motion to simulate manual operation of repeatedly switching the switch 300 under test. The drive device 210 is a servo motor, which has precise position control and speed adjustment capabilities. The servo motor receives preset test program instructions through the controller to control the start / stop, running frequency, and number of strokes.

[0025] In an optional embodiment, the trigger 230 is a contoured push head made of elastic plastic material, the shape of which matches the shape of the operating lever or button of the switch under test 300, thus avoiding damage to the surface of the device under test. The trigger 230 is mounted on the transmission component 220 via a detachable connection structure (such as a quick-change connector), facilitating the replacement of the appropriate trigger head according to different switches under test. For example, for lever switches, the trigger 230 is designed with a hook-shaped structure; for push-button switches, it is designed with a flat or arc-shaped pressure head.

[0026] The combination switch durability testing equipment described in this embodiment has the following technical advantages: 1. High repeatability and controllability: The servo drive system can accurately control the triggering force, speed and stroke, reducing human interference; it can be adapted to various types of combination switches; 2. High degree of intelligence: It can automatically detect through software programs, realizing unattended long-term operation.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown in this embodiment of the invention, the driving component 210 includes a first servo motor 211 and a first driving gear 212 connected to the first servo motor 211; the transmission component 220 includes a first rack 221 that engages with the first driving gear 212; and the trigger component 230 includes a first striking pin 231 connected to the first rack 221. The first servo motor 211 drives the first driving gear 212 to reciprocate, thereby driving the first rack 221 to reciprocate along a straight line. The first striking pin 231 can perform pressing and releasing operations on the push-button switch.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first rack 221 is connected to the first slider 223, the first slider 223 is slidably engaged with the first slide rail 224, the first slide rail 224 is arranged parallel to the first rack 221, and the sliding direction of the first rack 221 is restricted by the cooperation between the first slide rail 224 and the first slider 223 to prevent the first rack 221 from deflecting or getting stuck.

[0029] Furthermore, the driving component 210 also includes: a second servo motor 213 and a second driving gear 214 connected to the second servo motor 213; the transmission component 220 includes a second rack 222 that engages with the second driving gear 214; and the trigger component 230 includes a second striking pin 232 connected to the second rack 222. The second servo motor 213 drives the second driving gear 214 to reciprocate, and the second driving gear 214 drives the first rack 221 to achieve reciprocating linear motion, thereby driving the second striking pin 232 to perform pressing and releasing operations.

[0030] The first striking pin 231 and the second striking pin 232 are arranged in parallel. The first striking pin 231 can be positioned at one end of the rocker switch, and the second striking pin 232 is positioned at the other end of the rocker switch. The first servo motor 211 and the second servo motor 213 are respectively connected to the controller to achieve coordinated control, so that one of the first striking pin 231 and the second striking pin 232 performs a pressing action and the other performs a releasing (retracting) action, thereby realizing the repeated triggering operation of the rocker switch.

[0031] Furthermore, the second rack 222 is connected to the second slider 225, and the second slider 225 is slidably engaged with the second slide rail 226. The second slide rail 226 is arranged parallel to the second rack 222. The second slide rail 226, in conjunction with the second slider 225, restricts the second rack 222 from sliding in a direction parallel to the second slide rail 226, thereby preventing the second rack 222 from becoming skewed or stuck.

[0032] See Figure 5 The drive component 210 includes a third servo motor 215 and a third drive gear 216 connected to the third servo motor 215; the transmission component 220 includes a third rack 227 that engages with the third drive gear 216; and the trigger component 230 includes a pawl 233 connected to the third rack 227.

[0033] The pawl 233 is provided with a protrusion or slot adapted to the reciprocating toggle switch. The third servo motor 215 drives the third drive gear 216 to rotate, which in turn drives the third rack 227 to slide in a straight line. The pawl 233 is driven by the third rack 227 to realize the opening and closing operation of the reciprocating toggle switch.

[0034] Furthermore, the third rack 227 is connected to the third slider 228, and the third slider 228 is slidably engaged with the third slide rail 229. The third slide rail 229 is set parallel to the third rack 227. By cooperating with the third slide rail 229, the third rack 227 is ensured to slide back and forth in a direction parallel to the third slide rail 229, which can prevent the third rack 227 from being skewed or stuck.

[0035] like Figure 1 , Figure 2 and Figure 6 As shown, the clamping fixture 100 includes: a base 110, a clamping seat 120 and a clamping member 130; the clamping seat 120 is mounted on the base 110, the clamping member 130 is mounted on the clamping seat 120, and a clamping opening is formed between the clamping member 130 and the clamping seat 120.

[0036] The base 110 serves as a support component, constructed from high-strength metal materials (such as aluminum alloy or stainless steel), providing excellent rigidity and shock resistance. Multiple mounting holes on the base 110 allow for secure mounting to the test platform or frame using screws, ensuring stable installation of the entire device. The clamp 120 is fixedly mounted above the base 110, preferably detachably installed via bolts, facilitating the replacement of appropriate clamps for different models of the switch under test. The clamp 120 features positioning grooves or protrusions for lateral and longitudinal limiting of the switch under test 300, ensuring consistency in each clamping operation. A clamping element 130 is mounted on the clamp 120, preferably a rotatable or sliding pressure block structure, driven by an elastic element (such as a spring) or a manual knob for vertical movement. The clamping element 130 and the clamp 120 together form a clamping opening, firmly holding the switch under test 300 and preventing loosening or displacement during testing. The inner surface of the clamp can be provided with an anti-slip pad or a rubber buffer layer to avoid damaging the housing of the switch under test during the clamping process, while improving clamping stability.

[0037] The clamping method can be used to clamp and fix the tested switch 300, such as push-button switch and rocker switch. The clamping component 130 can be driven by a cylinder or by a motor to drive a lead screw to rotate, and the lead screw drives the pressure block to reciprocate to achieve clamping and releasing.

[0038] In an optional embodiment, the clamp 120 is rotatably connected to the base 110 about an axis extending in the horizontal or vertical direction, thereby adjusting the orientation of the clamp 120 and locking the clamp 120 relative to the base 110 using bolts or buckles. This changes the orientation of the switch 300 being clamped between the clamp 120 and the clamping member 130, so that the switch 300 is facing the switch switching device 200.

[0039] like Figure 1 and Figure 7As shown, the clamping fixture 100 includes: a bearing seat 140 and a handle spindle 150 connected to the bearing seat 140; the handle spindle 150 is provided with a circumferential limiting groove 151 extending along the axial direction.

[0040] A handle or grip with the switch under test 300 can be fitted onto the handle spindle 150. The switch switching device 200 applies pressure to the switch under test 300 radially along the handle spindle 150, thereby repeatedly triggering the switch under test 300. In addition, the circumferential limiting groove 151 can cooperate with the limiting member or set screw inside the handle or grip to limit the rotation of the handle or grip around the handle spindle 150, so as to maintain the loading angle of the switch under test 300 toward the switch switching device 200.

[0041] In an optional implementation, the combined switch durability testing equipment further includes an input module and a detection module, thereby constructing a complete integrated motor testing closed-loop system. The input module is used to connect to the switch under test (SUT) 300, and the detection module is connected to either the switch switching device 200 or the SUT 300; alternatively, both the switch switching device 200 and the SUT 300 are connected to the detection module. The input module provides operating voltage or excitation signals to the SUT 300 to simulate power supply conditions under a vehicle environment. The input module is connected to the power pins or load interface of the SUT 300 via wires, and can output DC12V or DC24V power. Transient pulses or noise interference can be superimposed as needed to evaluate the reliability of the switch under complex electromagnetic environments. The detection module is used to monitor the operating status of the SUT 300 and the operation of the switch switching device 200 in real time. Specifically, the detection module includes: an electrical detection unit, an action feedback unit, and a data acquisition and processing module. The electrical detection unit is connected to each output contact of the switch under test 300 to collect parameters such as on / off signals, contact resistance, and leakage current. The action feedback unit uses displacement sensors, photoelectric encoders, and pressure sensors to detect the switch's trigger stroke and trigger force. The data acquisition and processing module, based on a microcontroller or PLC control system, records information such as the timestamp of each operation, the success rate of the action, and the electrical response delay. Furthermore, when adjusting the switch under test 300, adaptive adjustment of the trigger force can be achieved based on the action stroke and trigger force, and subsequent trigger control can be performed based on the switch's toggle stroke and trigger force.

[0042] It should be noted that the combination switch durability testing equipment can be integrated and installed on a test bench, which can be installed on a cabinet or separated from the cabinet and placed in an environmental chamber. This allows for the performance of combined durability tests under environmental conditions such as high temperature, low temperature, or constant humidity and heat, as needed.

[0043] 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 the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A durability testing device for combination switches, characterized in that, include: Clamping fixture (100) and switching device (200); The clamping fixture (100) is used to load the switch under test (300); The switching device (200) includes: a driving element (210), a transmission element (220), and a trigger element (230); The driving component (210) is connected to the transmission component (220), the trigger component (230) is disposed opposite to the switch under test (300), and the trigger component (230) is connected to the transmission component (220).

2. The combined switch durability testing equipment according to claim 1, characterized in that, The driving component (210) includes: a first servo motor (211) and a first driving gear (212) connected to the first servo motor (211). The transmission component (220) includes a first rack (221) that engages with the first drive gear (212); The trigger (230) includes a first firing pin (231) connected to the first rack (221).

3. The combined switch durability testing equipment according to claim 2, characterized in that, The first rack (221) is connected to the first slider (223), the first slider (223) is slidably engaged with the first slide rail (224), and the first slide rail (224) is arranged parallel to the first rack (221).

4. The combined switch durability testing equipment according to claim 2, characterized in that, The drive unit (210) further includes: a second servo motor (213) and a second drive gear (214) connected to the second servo motor (213). The transmission component (220) includes a second rack (222) that engages with the second drive gear (214); The trigger (230) includes a second firing pin (232) connected to the second rack (222).

5. The combined switch durability testing equipment according to claim 4, characterized in that, The second rack (222) is connected to the second slider (225), the second slider (225) is slidably engaged with the second slide rail (226), and the second slide rail (226) is arranged parallel to the second rack (222).

6. The combined switch durability testing equipment according to claim 1, characterized in that, The drive unit (210) includes: a third servo motor (215) and a third drive gear (216) connected to the third servo motor (215). The transmission component (220) includes a third rack (227) that engages with the third drive gear (216). The trigger (230) includes a pawl (233) connected to the third rack (227).

7. The combined switch durability testing equipment according to claim 6, characterized in that, The third rack (227) is connected to the third slider (228), the third slider (228) is slidably engaged with the third slide rail (229), and the third slide rail (229) is arranged parallel to the third rack (227).

8. The combined switch durability testing equipment according to claim 1, characterized in that, The clamping fixture (100) includes: a base (110), a clamp (120), and a clamping element (130); The clamp (120) is mounted on the base (110), the clamping member (130) is mounted on the clamp (120), and a clamping opening is formed between the clamping member (130) and the clamp (120).

9. The combined switch durability testing equipment according to claim 1, characterized in that, The clamping fixture (100) includes: a bearing seat (140) and a handle spindle (150) connected to the bearing seat (140). The handle spindle (150) is provided with a circumferential limiting groove (151) extending along the axial direction.

10. The combined switch durability testing equipment according to claim 1, characterized in that, The combined switch durability testing equipment also includes an input module and a detection module; the input module is used to connect to the switch under test (300), and the detection module is connected to the switch switching device (200) and / or the switch under test (300).

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