Lamp and micro-droplet generating device

Abstract

The utility model provides a lamp and a micro-droplet generation device, the lamp comprises a lamp holder and a lamp arm, the lamp arm is movably installed on the lamp holder, the lamp arm can be switched between a first position and a second position, a light emitting body is installed on the lamp arm, in the first position, the projection of the light emitting body on a workbench falls on a workpiece, the light emitting body right faces the workpiece, and in the second position, the projection of the light emitting body on the workbench falls on the workpiece. The projection of the light-emitting body on the workbench leaves the workpiece, the light-emitting body can be closed in response to the switching of the lamp arm from the first position to the second position, and the light-emitting body can be opened in response to the switching of the lamp arm from the second position to the first position. The coupling relation is established between the position switching of the lamp arm and the switch of the luminous body, so that the lamp can be automatically turned off during avoiding and can be automatically turned on when the lamp is reset to the use state, the avoiding and turning off of the lamp can be completed at the same time only by operating the lamp arm, and the lamp is more convenient to use.

Description

Technical Field

[0001] This application relates to the field of bright-field lights, in particular to a lamp and a micro-droplet generation device. Background Art

[0002] Bright-field lights are often used to cooperate with an objective lens to image a sample. In the scenario where the sample is a transparent sample such as a glass slide or a microfluidic chip and transmitted light is used for imaging, in order to improve the imaging effect, the bright-field light is often vertically and directly facing the sample on the workbench. At this time, the projection of the bright-field light on the workbench falls on the workpiece, and the position of the bright-field light will prevent the experimenter from performing relevant operations on the sample, such as connecting pipelines to the microfluidic chip. Therefore, it is necessary to control the bright-field light to avoid when not in use.

[0003] In addition, being irradiated by the reflected light of the bright-field light for a long time is likely to cause the experimenter's eyes to fatigue and the eyesight to decline. When the bright-field light uses light sources such as ultraviolet lamps, it is also likely to harm the experimenter. Therefore, it is necessary to control the bright-field light to turn off when not in use.

[0004] In the related art, driving the bright-field light to move for avoidance or reset, and using a switch to control the opening and closing of the bright-field light. Avoidance and closing are carried out in two steps, and the use of the bright-field light is relatively cumbersome.

[0005] Although some related technologies provide a design for triggering the power-off of the lamp when the lamp is closed, in these designs, generally, a conductive contact piece sliding along a chute is used to trigger the on-off of the circuit. For example, the bottom of the chute has a conductor, and when the lamp is closed or opened, the conductive contact piece correspondingly leaves or contacts the conductor to trigger the on-off of the circuit. On the one hand, the sliding friction between the conductive contact piece and the chute will make the closing of the lamp relatively sluggish. On the other hand, the reliability of triggering may decrease due to wear after long-term use.

[0006] In addition, in some usage scenarios (such as some small and portable devices), the available space in the working area is small. Therefore, there are also design requirements for miniaturizing the bright-field light to make more space for other experimental equipment and samples. Summary of the Invention

[0007] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, this application proposes a lamp and a micro-droplet generation device, and the use of the lamp is more convenient.

[0008] The lamp provided according to the present application includes a lamp base and a lamp arm. The lamp arm is movably mounted on the lamp base. The lamp arm can switch between a first position and a second position. A light-emitting body is mounted on the lamp arm. In the first position, the projection of the light-emitting body on the workbench falls on the workpiece, and the light-emitting body faces the workpiece directly. In the second position, the projection of the light-emitting body on the workbench leaves the workpiece, and the light-emitting body can be turned off in response to the lamp arm switching from the first position to the second position, and the light-emitting body can be turned on in response to the lamp arm switching from the second position to the first position.

[0009] The lamp provided according to the present application has at least the following technical effects: In the first position, the light-emitting body faces the workpiece directly to provide a bright field. In the second position, the lamp arm moves away to facilitate the operation of the workpiece. By establishing a coupling relationship between the position switching of the lamp arm and the on / off of the light-emitting body, the lamp can be automatically turned off when performing avoidance, and can be automatically turned on when reset to the use state. Therefore, only by operating the lamp arm, the avoidance and closing of the lamp can be completed simultaneously, making the use of the lamp more convenient.

[0010] In some embodiments of the present application, the lamp arm can switch between the first position and the second position by rotation, and the light-emitting body is eccentrically arranged relative to the rotation axis of the lamp arm.

[0011] In some embodiments of the present application, the rotation axis of the lamp arm is perpendicular to the workbench.

[0012] In some embodiments of the present application, the lamp arm extends in the horizontal direction. One end of the lamp arm is rotatably connected to the lamp base, and the light-emitting body is located at the other end of the lamp arm.

[0013] In some embodiments of the present application, the lamp includes a trigger assembly. The light-emitting body is electrically connected to the trigger assembly, and the trigger assembly can turn the light-emitting body off or on in response to the switching of the lamp arm between the first position and the second position.

[0014] In some embodiments of the present application, the trigger assembly includes a first conductor and a second conductor that are paired with each other. The first conductor is located on the lamp base, and the second conductor is located on the lamp arm. In the first position, the first conductor and the second conductor are in contact with each other. In the second position, the first conductor and the second conductor are separated from each other.

[0015] In some embodiments of the present application, the first conductor and the second conductor are at least used to position the lamp arm in the first position.

[0016] According to some embodiments of the present application, the two first conductors are respectively used for electrically connecting the positive electrode and the negative electrode of a power source, and the two second conductors are respectively used for electrically connecting the positive electrode and the negative electrode of a light-emitting body.

[0017] According to some embodiments of the present application, the lamp socket includes a first adapter assembly, the first conductor is detachably electrically connected to the first adapter assembly, the first conductor is electrically connected to the power source through the first adapter assembly, the lamp arm includes a second adapter assembly, the second conductor is detachably electrically connected to the second adapter assembly, and the second conductor is electrically connected to the light-emitting body through the second adapter assembly.

[0018] According to some embodiments of the present application, the first conductor and / or the second conductor has elasticity.

[0019] According to some embodiments of the present application, the first conductor and / or the second conductor includes at least one of a spring piece, a spring plunger, and an elastic probe.

[0020] According to some embodiments of the present application, the second conductor and the first conductor are arranged eccentrically with respect to the rotating shaft so that the second conductor can approach or move away from the first conductor in response to the rotation of the lamp arm.

[0021] According to some embodiments of the present application, the first conductor includes a first conductive plate, the second conductor includes a first spring plunger, and during the process of switching from the second position to the first position, the ball head of the first spring plunger contacts the first conductive plate to turn on the light-emitting body.

[0022] According to some embodiments of the present application, the first conductive plate is provided with a first limiting groove, and the ball head of the first spring plunger is clamped in the first limiting groove to position the lamp arm at the first position.

[0023] According to some embodiments of the present application, the first conductor and the second conductor are arranged opposite to each other in the axial direction of the rotating shaft.

[0024] According to some embodiments of the present application, the first adapter assembly includes a first circuit board and a first isolation block. The first circuit board is located on the side of the first conductor away from the lamp arm. The first conductor includes a first conductive plate and a first elastic probe. The first isolation block is located between the first conductive plate and the first circuit board. The first elastic probe is installed on the first conductive plate, and the first elastic probe passes through the first isolation block and abuts against the first circuit board.

[0025] According to some embodiments of the present application, the first isolation block is provided with a stop portion, the stop portion is arranged at intervals with the first conductive plate in the circumferential direction. When the lamp is in the installed state, the top surface of the stop portion is higher than the top surface of the first conductive plate in the axial direction, and the stop portion is used to abut against the plunger seat of the first spring plunger to limit the rotation range of the lamp arm.

[0026] According to some embodiments of the present application, the first adapter assembly includes a second circuit board and a second isolation block. The lamp socket further includes a third conductor for plugging in a power source. The second circuit board is located on the side of the third conductor away from the power source. The third conductor includes a second conductive plate and a second elastic probe. The second isolation block is located between the second conductive plate and the second circuit board. The second elastic probe is installed on the second conductive plate, and the second elastic probe passes through the second isolation block and abuts against the second circuit board.

[0027] According to some embodiments of the present application, the lamp socket includes a seat body, the first isolation block and the second isolation block are installed on the seat body, the first isolation block and the seat body clamp and fix the first circuit board, and the second isolation block and the seat body clamp and fix the second circuit board.

[0028] According to some embodiments of the present application, the seat body extends along the axial direction, the first circuit board and the second circuit board are respectively arranged at both ends of the seat body, the first circuit board and the second circuit board are electrically connected by a wire, and the seat body is provided with a first wire passing channel penetrating in the axial direction, and the wire is located in the first wire passing channel.

[0029] According to some embodiments of the present application, the second adapter assembly includes a third circuit board, the second conductor includes a first spring plunger, the first spring plunger is inserted on the third circuit board, and the light-emitting body is electrically connected to the third circuit board through a wire.

[0030] According to some embodiments of the present application, the lamp arm includes a first cover plate and a second cover plate. The first cover plate is installed on the lamp socket, the first cover plate and the second cover plate are respectively located on both sides of the third circuit board, and the second cover plate presses and fixes the third circuit board.

[0031] According to some embodiments of the present application, the lamp arm includes a light guide cover. The light guide cover is installed on the first cover plate. The light guide cover encloses to form a light source chamber with a light outlet. The light-emitting body is installed in the light source chamber. The side wall of the light guide cover is further provided with a wire outlet hole communicating with the light source chamber, and the second cover plate forms a second wire passing channel communicating the wire outlet hole and the third circuit board.

[0032] The micro-droplet generation device provided by the present application includes the lamp provided by the present application.

[0033] The micro-droplet generation device provided by the present application includes the lamp provided by the present application, and thus correspondingly has the beneficial effects possessed by the lamp, which will not be elaborated herein.

[0034] According to some embodiments of the present application, the micro-droplet generation device further includes a workbench and an imaging module. The microfluidic chip is placed on the workbench. The workbench is provided with an observation hole exposing the microfluidic chip. The imaging module includes an objective lens, and the objective lens and the light-emitting body are respectively arranged on both sides of the workbench. Description of the Drawings

[0035] The above and / or additional aspects and advantages of the present application will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0036] Figure 1 is a schematic diagram of the overall structure of the lamp according to an embodiment of the present application;

[0037] Figure 2 is a schematic diagram of the overall structure of the micro-droplet culture device according to an embodiment of the present application;

[0038] Figure 3 is a schematic diagram of the semi-sectional structure of the lamp according to an embodiment of the present application;

[0039] Figure 4 is a schematic diagram of the partial structure of the lamp according to an embodiment of the present application;

[0040] Figure 5 is a schematic diagram of the partial structure of the lamp according to an embodiment of the present application;

[0041] Figure 6 is a schematic diagram of the partial structure of the lamp according to an embodiment of the present application;

[0042] Figure 7 is a schematic diagram of the partial structure of the lamp according to an embodiment of the present application;

[0043] Figure 8 is a schematic diagram of the structures of the spring plunger and the elastic probe used in an embodiment of the present application.

[0044] Reference Signs:

[0045] Lamp holder 1100, first conductor 1110, first conductive plate 1111, first elastic probe 1112, first limiting groove 1113, first circuit board 1120, first isolation block 1130, stop portion 1131, positioning sink 1132, seat body 1140, first wire passing channel 1141, second circuit board 1150, third conductor 1170, second elastic probe 1171, second conductive plate 1172, second isolation block 1180,

[0046] Lamp arm 1200, second conductor 1210, third circuit board 1220, first cover plate 1230, second cover plate 1240, second wire passing channel 1241, pressing rib 1242, light guide cover 1250,

[0047] Imaging module 2000,

[0048] Workbench 3100,

[0049] Base 8100, contact 8200, spring 8300,

[0050] Microfluidic chip 9000. Detailed implementation mode

[0051] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0052] In the description of the present application, it should be understood that for the orientation description, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0053] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0054] In the description of the present application, unless otherwise clearly defined, terms such as "setting", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0055] Bright-field microscopy is a conventional imaging method in various biological experiments. During imaging, the light source (generated by a bright-field lamp) and the objective lens are generally arranged on the upper and lower sides of the sample respectively, and the light source is arranged facing the sample and the objective lens.

[0056] The light source located above will interfere with the operation of the sample, and the reflected light of the light source may stimulate the human eye and cause fatigue. Therefore, it is required that the bright-field lamp can be avoided and turned off. In the related art, the avoidance and turning off are independent of each other and need to be completed in two steps. Therefore, the use of the bright-field lamp is relatively cumbersome.

[0057] Referring to Figure 1 According to the lamp provided by the embodiment of the present application, it includes a lamp base 1100 and a lamp arm 1200. The lamp base 1100 is fixedly installed, and the lamp arm 1200 is movably installed on the lamp base. The lamp arm 1200 can be switched between a first position and a second position. A light-emitting body (not shown in the figure) is installed on the lamp arm 1200. In the first position, the projection of the light-emitting body on the workbench falls on the workpiece, and the light-emitting body faces the workpiece. In the second position, the projection of the light-emitting body on the workbench leaves the workpiece, and the light-emitting body can be turned off in response to the lamp arm 1200 being switched from the first position to the second position, and the light-emitting body can be turned on in response to the lamp arm 1200 being switched from the second position to the first position.

[0058] The lamp of the present application can be used as a bright-field lamp. For example, referring to Figure 2 The embodiment of the present application also provides a micro-droplet generation device, which includes the lamp of the present application.

[0059] Exemplarily, the workpiece in the micro-droplet generation device is a microfluidic chip 9000. The micro-droplet generation device further includes a workbench 3100 and an imaging module 2000. The microfluidic chip 9000 is placed on the workbench 3100. The workbench 3100 is provided with an observation hole exposing the microfluidic chip 9000. The imaging module 2000 includes an objective lens, and the objective lens and the light-emitting body are arranged on both sides of the workbench 3100 respectively.

[0060] According to the lamp provided by the present application, in the first position, the light-emitting body faces the workpiece (such as the microfluidic chip 9000) to provide a bright field. In the second position, the lamp arm 1200 is moved away to facilitate the operation of the workpiece. By establishing a coupling relationship between the position switching of the lamp arm 1200 and the on / off of the light-emitting body, the lamp can be automatically turned off when avoiding, and automatically turned on when reset to the use state. Therefore, only by operating the lamp arm 1200, the avoidance and turning off of the lamp can be completed simultaneously, and the use of the lamp is more convenient.

[0061] The micro-droplet generating device of the present application includes the lamp of the present application, and thus correspondingly has the beneficial effects provided by the lamp, which will not be elaborated herein.

[0062] It can be understood that the lamp arm 1200 can be switched between the first position and the second position by moving and / or rotating.

[0063] Exemplarily, in Figure 2 the usage scenario, the lamp arm 1200 can be switched between the first position and the second position by rotating, and the rotation axis of the lamp arm 1200 is perpendicular to the workbench 3100. Correspondingly, the light-emitting body is eccentrically arranged relative to the rotation axis of the lamp arm 1200. Therefore, the rotation of the lamp arm 1200 can drive the light-emitting body to move in the horizontal direction and move away from above the workpiece (that is, switch to the second position).

[0064] More specifically, referring to Figure 1 and Figure 2 , the lamp arm 1200 can extend in the horizontal direction. One end of the lamp arm 1200 is rotatably connected to the lamp base 1100, and the light-emitting body is located at the other end of the lamp arm 1200. In order to miniaturize the design of the lamp and improve the aesthetics of the lamp, at this time, the lamp base 1100 can extend in the vertical direction, thereby further reducing the projected area of the lamp on the horizontal plane and compressing the occupied space of the lamp.

[0065] Of course, the lamp arm 1200 is not limited to extending horizontally. The lamp arm 1200 can also be designed to extend obliquely, or the lamp arm 1200 can adopt more complex shapes such as multi-segmented and irregular curve shapes. For example, the lamp arm 1200 can include a first section extending vertically and a second section extending horizontally. The first section is rotatably installed on the lamp base 1100, and the second section is connected to the end of the first section far from the lamp base 1100.

[0066] The rotation axis of the lamp arm 1200 is not limited to the vertical direction. For example, the rotation axis can be designed to be in the horizontal direction, and the extension direction of the lamp arm 1200 is perpendicular to the rotation axis direction. In the first position, the lamp arm 1200 extends in the horizontal direction, and in the second position, the lamp arm 1200 is switched to extend in the vertical direction by rotation, thereby reducing the projected area of the lamp arm 1200 on the horizontal plane and moving the light-emitting body away from above the workpiece.

[0067] In short, the lamp can construct the rotatable lamp arm 1200 in different ways, as long as it is ensured that the light-emitting body is eccentric with respect to the rotation axis of the lamp arm 1200, so that the position can be changed by rotation.

[0068] In some other usage scenarios, the lamp arm 1200 can be configured to be movably mounted on the lamp base 1100, for example, by a guide rail slider mechanism, so that the lamp arm 1200 can extend or retract relative to the lamp base 1100. When extended, the lamp arm 1200 is in the first position, and when retracted, the lamp arm 1200 is in the second position.

[0069] Similarly, the lamp can be constructed with a movable lamp arm 1200 in different ways, or the lamp arm 1200 can also combine movement and rotation to achieve the switching between the first position and the second position, which will not be elaborated here.

[0070] The lamp can control the turn-off of the light-emitting body through a trigger component. Specifically, the light-emitting body is electrically connected to the trigger component, and the trigger component can cause the light-emitting body to turn off or on in response to the switching of the lamp arm 1200 between the first position and the second position.

[0071] It can be understood that the trigger component turning off or on the light-emitting body means that the trigger component can cause the circuit where the light-emitting body is located to be disconnected or conducted in response to the movement of the lamp arm 1200, so that the light-emitting body loses power and goes out or is energized.

[0072] Exemplarily, referring to Figure 3 and Figure 4 , the trigger component can include a paired first conductor 1110 and a second conductor 1210. The first conductor 1110 is located on the lamp base 1100, and the second conductor 1210 is located on the lamp arm 1200. In the first position, the first conductor 1110 and the second conductor 1210 are in contact with each other, and in the second position, the first conductor 1110 and the second conductor 1210 are separated from each other.

[0073] Specifically, referring to Figure 5 , the trigger component can be further configured to include two first conductors 1110 and two second conductors 1210. The two first conductors 1110 are respectively used to electrically connect the positive and negative poles of the power supply, and the two second conductors 1210 are respectively used to electrically connect the positive and negative poles of the light-emitting body.

[0074] That is to say, the trigger component forms two switch structures in the circuit through the pairing of the first conductor 1110 and the second conductor 1210. In the second position, both switch structures are in the off state, and in the first position, both switch structures are simultaneously conducted.

[0075] Of course, the trigger component can also achieve the turn-off or on of the light-emitting body only through one first conductor 1110 and one second conductor 1210. The present application does not limit the number of the first conductor 1110 and the second conductor 1210.

[0076] In addition, optionally, the first conductor 1110 and the second conductor 1210 can also be used at least to position the lamp arm 1200 in the first position. That is to say, while realizing the on-off of the circuit, the first conductor 1110 and the second conductor 1210 also take into account the function of accurately positioning the light-emitting body. By integrating the positioning function and the conduction function on the trigger component, the structure of the lamp can be simplified, which helps to realize the miniaturized design of the lamp.

[0077] The positioning function can be realized by constructing positioning structures with mutually matching shapes on the first conductor 1110 and the second conductor 1210, and making the positioning structures in a paired state in the first position. Optionally, the positioning structure can be realized by physical cooperation of concave and convex structures such as shaft-hole fitting and gear meshing, or can also be realized by non-physical cooperation such as magnetic attraction.

[0078] In order to form a stable contact relationship between the first conductor 1110 and the second conductor 1210 to ensure the effect of the conduction loop and / or the positioning effect, the first conductor 1110 and / or the second conductor 1210 can be designed to be elastic. The acting force generated by elastic deformation can make the contact surfaces of the first conductor 1110 and the second conductor 1210 tightly pressed together. Optionally, the first conductor 1110 and / or the second conductor 1210 includes at least one of a shrapnel, a spring plunger, and an elastic probe.

[0079] It can be understood that the spring plunger and the elastic probe are common standard parts. Referring to Figure 8 , the spring plunger and the elastic probe are basically composed of three parts: a base 8100, a contact 8200, and a spring 8300. The contact 8200 is movably inserted into the base 8100. The two ends of the spring 8300 abut against the contact 8200 and the base 8100. Through the elastic deformation of the spring 8300, a force pressing the contact 8200 towards the target is applied.

[0080] Unless otherwise specified, all spring plungers in this application, such as the first spring plunger and the second spring plunger, and elastic probes, such as the first elastic probe and the second elastic probe, etc. all adopt the above basic structure. The specific models of the spring plunger and the elastic probe can be flexibly adjusted according to the specific design of the lamp, which will not be elaborated here.

[0081] Exemplarily, in the Figure 3 , Figure 4 and Figure 5 embodiments, only the second conductor 1210 is elastic, and the first conductor 1110 and the second conductor 1210 can be used simultaneously to realize the on-off of the circuit and the positioning of the light-emitting body.

[0082] Referring to Figure 3 andFigure 4 , the lamp arm 1200 can be switched between a first position and a second position by rotation. The second conductor 1210 and the first conductor 1110 are arranged eccentrically with respect to the rotation axis so that the radial position of the second conductor 1210 can change in response to the axial rotation of the lamp arm 1200, thereby approaching or moving away from the first conductor 1110 to realize the function of controlling the on / off of the control circuit.

[0083] Specifically, with reference to Figure 8 , the first conductor 1110 includes a first conductive plate 1111, and the second conductor 1210 includes a first spring plunger. During the process of switching from the second position to the first position, the contact 8200 of the first spring plunger contacts the first conductive plate 1111 to turn on the illuminant.

[0084] At the same time, the first conductive plate 1111 is also provided with a first limiting groove 1113, and the contact 8200 (specifically, a spherical and rollable ball head here) of the first spring plunger is clamped in the first limiting groove 1113. Thus, the lamp arm 1200 is positioned at the first position through the physical cooperation between the concave structure (the first limiting groove 1113) and the convex structure (the ball head), realizing the function of positioning the illuminant. In the case where avoidance is required, only a certain force needs to be applied to the lamp arm 1200, and the ball head can be retracted against the thrust of the spring 8300, thereby releasing the positioning relationship between the first conductor 1110 and the second conductor 1210 and enabling the lamp arm 1200 to move.

[0085] Since the ball head can roll in the first spring plunger, when the lamp arm 1200 moves, a rolling friction is formed between the ball head and the first conductive plate 1111. On the one hand, it can reduce the movement resistance of the lamp arm 1200, making the use of the lamp more smooth. On the other hand, it can also reduce the wear of the first conductive plate 1111 and improve the service life of the lamp.

[0086] Continuing to refer to Figure 4 and Figure 5 , exemplarily, the first conductor 1110 and the second conductor 1210 can be designed to be arranged relatively axially with respect to the rotation axis. Or, the first conductor 1110 and the second conductor 1210 can also be designed to be arranged relatively radially with respect to the rotation axis.

[0087] For example, in some cases different from Figure 3 , Figure 4 and Figure 5In the embodiment, the first conductor 1110 may include a second spring plunger electrically connected to a power source. The second spring plunger is arranged radially (i.e., the contact 8200 faces the radial direction). The contact 8200 of the second spring plunger protrudes from the side wall of the lamp socket 1100. The second conductor 1210 includes a conductive ring for sleeving on the lamp socket 1100, so that the first conductor 1110 and the second conductor 1210 are arranged opposite to each other in the radial direction of the rotating shaft.

[0088] A positioning hole is formed on the inner side of the conductive ring, and a contact is formed on the surface of the positioning hole. The contact is electrically connected to the light-emitting body through the first circuit pattern on the conductive ring. In the first position, the contact 8200 is snapped into the positioning hole, and the contact 8200 contacts the contact, thereby conducting the circuit while realizing positioning.

[0089] Since the second spring plunger is arranged radially at this time, the space occupied by the first conductor 1110 in the radial direction increases, which is not conducive to the miniaturization of the size of the lamp. However, in Figure 3 、 Figure 4 and Figure 5 's embodiments, the first spring plunger is arranged axially, which helps to reduce the diameter size of the lamp.

[0090] It should be noted that when the lamp arm 1200 is rotatably installed, as long as the second conductor 1210 and the first conductor 1110 satisfy "being arranged eccentrically relative to the rotating shaft", a torque resisting the movement of the lamp arm 1200 along the rotating shaft can be generated to realize the function of positioning the light-emitting body. Similarly, when the lamp arm 1200 is movably installed, as long as the second conductor 1210 and the first conductor 1110 can generate a force resisting the movement of the lamp arm 1200 along the moving direction of the lamp arm 1200, the function of positioning the light-emitting body can be realized. The positional layout of the second conductor 1210 and the first conductor 1110 can be flexibly adjusted according to the design requirements of the lamp, and the present application does not limit this.

[0091] Since the first conductor 1110 and the second conductor 1210 are arranged at the connection part of the lamp socket 1100 and the lamp arm 1200, and there is contact friction between the first conductor 1110 and the second conductor 1210, both the first conductor 1110 and the second conductor 1210 will be worn, and there is a need for maintenance and replacement.

[0092] If the first conductor 1110 is directly electrically connected to the power source through a wire, and the second conductor 1210 is directly electrically connected to the light-emitting body through a wire, it is easy to increase the replacement difficulty of the first conductor 1110 and the second conductor 1210, resulting in a decrease in the maintainability of the lamp.

[0093] To this end, optionally, the lamp holder 1100 includes a first adapter assembly, the first conductor 1110 can be detachably electrically connected to the first adapter assembly, the first conductor 1110 is electrically connected to the power supply through the first adapter assembly, and the lamp arm 1200 includes a second adapter assembly, the second conductor 1210 can be detachably electrically connected to the second adapter assembly, and the second conductor 1210 is electrically connected to the light-emitting body through the second adapter assembly.

[0094] For example, refer to Figure 5 The first adapter assembly may include a first circuit board 1120 , which is located on a side of the first conductor 1110 away from the lamp arm 1200 . The first conductor 1110 also includes a first elastic probe 1112 , which is installed on the first conductive plate 1111 , and the first elastic probe 1112 abuts against the first circuit board 1120 .

[0095] The first circuit board 1120 is used for switching, that is, the first conductor 1110 is indirectly electrically connected to the power supply through the first circuit board 1120, and the first conductor 1110 is not directly connected to the wire. On the one hand, there is no relative movement between the first conductor 1110 and the first circuit board 1120 during daily use, so the first circuit board 1120 is less worn and has a much longer service life than the first conductor 1110. During maintenance, it is generally only necessary to replace the first conductor 1110. On the other hand, the first conductor 1110 and the first circuit board 1120 are electrically connected through the first elastic probe 1112, so the first conductor 1110 and the first circuit board 1120 can be easily separated, so this design helps to improve the maintainability of the lamp. The first elastic probe 1112 can also ensure the stability of the electrical connection.

[0096] Reference Figure 5 Optionally, the lamp holder 1100 is provided with two first conductors 1110, which are respectively connected to the positive and negative electrodes of the power supply. Correspondingly, two second circuit patterns that are not connected to each other are formed on the surface of the first circuit board 1120, which are respectively electrically connected to the two first conductors 1110. The side of the first circuit board 1120 that is away from the first conductor 1110 is used for welding the wire connected to the power supply (not shown in the figure). In addition, the first conductor 1110 may include two or more first elastic probes 1112, so as to reduce the resistance of the loop by connecting the first elastic probes 1112 in parallel.

[0097] Furthermore, in order to avoid exposing the first elastic probe 1112 and other charged structures on the surface of the lamp, refer to Figure 1 and Figure 5The first adapter assembly may further include a first isolation block 1130, the first isolation block 1130 is located between the first conductive plate 1111 and the first circuit board 1120, and the first elastic probe 1112 passes through the first isolation block 1130 and abuts against the first circuit board 1120. The first isolation block 1130 is made of insulating material, which protects the internal circuit from environmental corrosion on the one hand, and avoids the risk of electric shock caused by exposure of the live structure on the other hand.

[0098] The first isolation block 1130 may further be provided with a positioning recess 1132, the shape of which matches the first conductive plate 1111, and the first conductive plate 1111 is embedded in the positioning recess 1132 to achieve the positioning and installation of the first conductive body 1110. The bottom of the positioning recess 1132 is correspondingly provided with a through hole for passing the first elastic probe 1112, and a clearance fit may be adopted between the through hole and the first elastic probe 1112, which can avoid over-positioning on the one hand, and facilitate the removal of the first elastic probe 1112 when replacing it on the other hand.

[0099] The first isolation block 1130 can also participate in limiting the position of the lamp arm 1200. Exemplarily, the first isolation block 1130 is provided with a stopper 1131, and the stopper 1131 and the first conductive plate 1111 are arranged at intervals in the circumferential direction. When the lamp is in the state of being installed, the top surface of the stopper 1131 is higher than the top surface of the first conductive plate 1111 in the axial direction, and the stopper 1131 is used to abut the base 8100 of the first spring plunger to limit the rotation range of the lamp arm 1200. Alternatively, the first isolation block 1130 can also be provided with a second limiting groove similar to the first limiting groove, and the contact 8200 of the first spring plunger is inserted into the second limiting groove, so that the lamp arm 1200 is accurately positioned in the second position.

[0100] The "installation completed state" refers to the state where the lamp is assembled and the first conductive plate 1111 is placed in place. For example, Figure 3 and Figure 5 In the "installation completed state", the first conductor 1110 is placed on the first isolation block 1130 along the axial direction, so that the first conductive plate 1111 is embedded in the positioning groove 1132, and the first elastic probe 1112 is inserted into the corresponding via hole. Figure 5 The thickness of the first conductive plate 1111 is the same as the depth of the positioning recess 1132 , and the stopper 1131 is higher than the positioning recess 1132 , so that the top surface of the stopper 1131 is higher than the top surface of the first conductive plate 1111 in the axial direction.

[0101] It is understandable that if the lamp is installed by plug-in or other quick-release installation methods, the connection between the lamp holder 1100 and the power supply will also have the problem of wear and tear and replacement.

[0102] To this end, optionally, the lamp socket 1100 may further include a third conductor 1170 for plugging in a power supply, and the first adapter assembly is detachably electrically connected to the third conductor 1170.

[0103] Specifically referring to Figure 6 , the first adapter assembly may further include a second circuit board 1150. The second circuit board 1150 is located on the side of the third conductor 1170 away from the power supply. The third conductor 1170 includes a second conductive plate 1172 and a second elastic probe 1171. The second elastic probe 1171 is mounted on the second conductive plate 1172 and passes through the second isolation block 1180 to abut against the second circuit board 1150.

[0104] The second circuit board 1150 may adopt a design similar to that of the first circuit board 1120. That is to say, the second circuit board 1150 can also form two non-connected third circuit patterns. The second conductive plate 1172 also forms two non-connected fourth circuit patterns. The two fourth circuit patterns are respectively electrically connected to the two third circuit patterns through two groups of second elastic probes 1171, so that the two third circuit patterns are respectively connected to the positive and negative poles of the power supply. The side of the second circuit board 1150 facing away from the second conductive plate 1172 is then connected to the first circuit board 1120 through a welded wire (not shown in the figure) to complete the connection of the entire circuit in the lamp socket 1100. The number of a group of second elastic probes 1171 can be two or more, so as to reduce the resistance of the circuit.

[0105] The first conductor 1110 may of course also adopt a design similar to that of the third conductor 1170, that is, the positive and negative poles of the power supply are respectively connected through two non-connected circuit patterns, which will not be elaborated here.

[0106] Similarly, the first adapter assembly may further include a second isolation block 1180. The second isolation block 1180 is located between the second conductive plate 1172 and the second circuit board 1150. The second elastic probe 1171 passes through the second isolation block 1180 to abut against the second circuit board 1150.

[0107] The function of the second elastic probe 1171 is similar to that of the first elastic probe 1112, and the function of the second isolation block 1180 is similar to that of the first isolation block 1130, which will not be elaborated here.

[0108] Next, return to Figure 1Exemplarily, the lamp holder 1100 includes a holder body 1140, a first isolation block 1130 and a second isolation block 1180 are mounted on the holder body 1140, the first isolation block 1130 and the holder body 1140 clamp and fix the first circuit board 1120, and the second isolation block 1180 and the holder body 1140 clamp and fix the second circuit board 1150, thereby realizing the installation of the first adapter assembly in the lamp holder 1100. The first isolation block 1130 and the second isolation block 1180 can be installed by conventional installation methods such as screw connection and riveting, which will not be described in detail here.

[0109] Further references Figure 3 The base body 1140 can be designed as a column extending in the axial direction. The first circuit board 1120 and the second circuit board 1150 are respectively arranged at the two ends of the base body 1140. The first circuit board 1120 and the second circuit board 1150 are electrically connected through a wire. The base body 1140 is provided with a first wire passing channel 1141 which passes through in the axial direction, and the wire is located in the first wire passing channel 1141.

[0110] It should be noted that Figure 1 and Figure 3 What is shown is only an exemplary design scheme of the base body 1140. The base body 1140 can also be designed into other shapes. The first isolation block 1130 and the second isolation block 1180 may also be arranged at other positions of the base body 1140. As long as the base body 1140 has a first wire passage 1141 extending between the first circuit board 1120 and the second circuit board 1150, the requirements can be met, and the present application does not impose any restrictions on this.

[0111] For example, refer to Figure 3 , Figure 4 and Figure 7 The second adapter assembly may include a third circuit board 1220, the first spring plunger is inserted into the third circuit board 1220, and the light-emitting body is electrically connected to the third circuit board 1220 through a wire.

[0112] The third circuit board 1220 is used for switching, that is, the second conductor 1210 (here, the first spring plunger) is indirectly electrically connected to the power supply through the third circuit board 1220. On the one hand, there is no relative movement between the second conductor 1210 and the third circuit board 1220 during daily use, so the third circuit board 1220 is less worn and has a much longer service life than the second conductor 1210. During maintenance, it is generally only necessary to replace the second conductor 1210. On the other hand, the first spring plunger is installed by plug-in, and the first spring plunger is not directly connected to the wire, so the first spring plunger and the third circuit board 1220 can be easily separated, so this design helps to improve the maintainability of the lamp.

[0113] To ensure the stability of the electrical connection, the first spring plunger can be welded to the third circuit board 1220. During maintenance, the first spring plunger can be removed by desoldering, which has a relatively small impact on maintainability.

[0114] To ensure safety, the third circuit board 1220 and other energized structures need to be prevented from being exposed on the surface of the lamp arm 1200. To this end, referring to Figure 7 , the lamp arm 1200 can further include a first cover plate 1230 and a second cover plate 1240. The first cover plate 1230 is installed on the lamp base 1100. The first cover plate 1230 and the second cover plate 1240 are respectively located on both sides of the third circuit board 1220, and the second cover plate 1240 presses and fixes the third circuit board 1220.

[0115] When pressing, the first cover plate 1230 and / or the second cover plate 1240 also enclose a second wire passing channel 1241 with the third circuit board 1220, so as to facilitate the connection between the third circuit board 1220 and the light-emitting body through a wire.

[0116] Exemplarily, the second cover plate 1240 has pressing ribs 1242 arranged at intervals. The pressing ribs 1242 press the third circuit board 1220 onto the first cover plate 1230, and a second wire passing channel 1241 is formed between the pressing ribs 1242.

[0117] It should be noted that Figure 3 、 Figure 4 and Figure 7 The exemplary design shown is only for the lamp arm 1200. The lamp arm 1200 can also be constructed in other forms, as long as the lamp arm 1200 can enclose the third circuit board 1220 and form a second wire passing channel 1241 to meet the requirements. The present application does not limit this.

[0118] Exemplarily, the lamp arm 1200 can further include a light guide cover 1250. The light guide cover 1250 is installed on the first cover plate 1230. The light guide cover 1250 encloses a light source chamber with a light outlet. The light-emitting body is installed in the light source chamber. The light guide cover 1250 is used to guide the light emission direction, so as to provide a better bright field effect.

[0119] In addition, an outlet hole communicating with the light source chamber is opened on the side wall of the light guide cover 1250, and the second cover plate 1240 forms a second wire passing channel 1241 communicating the outlet hole and the third circuit board 1220.

[0120] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0121] In some alternative embodiments, the functions / operations mentioned in the block diagrams may not occur in the order mentioned in the operation diagrams. For example, depending on the functions / operations involved, two consecutive blocks shown may actually be executed substantially simultaneously or the blocks can sometimes be executed in the reverse order. In addition, the embodiments presented and described in the flowcharts of the present application are provided by way of example for the purpose of providing a more comprehensive understanding of the technology. The disclosed methods are not limited to the operations and logical flows presented herein. Alternative embodiments are contemplated, in which the order of various operations is changed and the sub-operations described as part of a larger operation are executed independently.

[0122] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A lamp, characterized in that: include: Lamp holder; A lamp arm, wherein the lamp arm is movably mounted on the lamp holder, the lamp arm is capable of switching between a first position and a second position, a light-emitting body is mounted on the lamp arm, in the first position, a projection of the light-emitting body on the workbench falls on a workpiece so that the light-emitting body is directly opposite the workpiece, in the second position, a projection of the light-emitting body on the workbench leaves the workpiece, the light-emitting body can be turned off in response to the lamp arm being switched from the first position to the second position, and the light-emitting body can be turned on in response to the lamp arm being switched from the second position to the first position.

2. The lamp according to claim 1, characterized in that: The lamp arm can be switched between the first position and the second position by rotating, and the light-emitting body is arranged eccentrically relative to the rotation axis of the lamp arm.

3. The lamp according to claim 2, characterized in that: The rotating shaft of the lamp arm is perpendicular to the workbench.

4. The lamp according to claim 3, characterized in that: The lamp arm extends in a horizontal direction, one end of the lamp arm is rotatably connected to the lamp holder, and the light-emitting body is located at the other end of the lamp arm.

5. The lamp according to claim 2, characterized in that: The lamp comprises a trigger component, the light emitter is electrically connected to the trigger component, and the trigger component can turn off or on the light emitter in response to the switching of the lamp arm between the first position and the second position.

6. The lamp according to claim 5, characterized in that: The trigger assembly includes a first conductor and a second conductor that are paired with each other, the first conductor is located in the lamp holder, and the second conductor is located in the lamp arm. In the first position, the first conductor and the second conductor are in contact with each other, and in the second position, the first conductor and the second conductor are separated from each other.

7. The lamp according to claim 6, characterized in that: The first conductor and the second conductor are at least used to position the lamp arm in the first position.

8. The lamp according to claim 6, characterized in that: The two first conductors are respectively used to electrically connect the positive electrode and the negative electrode of the power source, and the two second conductors are respectively used to electrically connect the positive electrode and the negative electrode of the light-emitting body.

9. The lamp according to claim 6, characterized in that: The lamp holder includes a first adapter assembly, the first conductor is detachably electrically connected to the first adapter assembly, and the first conductor is electrically connected to a power source via the first adapter assembly; the lamp arm includes a second adapter assembly, the second conductor is detachably electrically connected to the second adapter assembly, and the second conductor is electrically connected to the light-emitting body via the second adapter assembly.

10. The lamp according to any one of claims 6 to 9, characterized in that: The first conductor and / or the second conductor has elasticity.

11. The lamp according to claim 10, characterized in that: The first conductor and / or the second conductor includes at least one of a spring sheet, a spring plunger, and an elastic probe.

12. The lamp according to claim 11, characterized in that The second conductor and the first conductor are eccentrically arranged relative to the rotation axis, so that the second conductor can approach or move away from the first conductor in response to the rotation of the lamp arm.

13. The lamp according to claim 12, characterized in that: The first conductor includes a first conductive plate, and the second conductor includes a first spring plunger. During the switching process from the second position to the first position, the ball head of the first spring plunger contacts the first conductive plate to turn on the light-emitting body.

14. The lamp according to claim 13, characterized in that The first conductive plate is provided with a first limiting groove, and the ball head of the first spring plunger is clamped in the first limiting groove to position the lamp arm at the first position.

15. The lamp according to claim 14, characterized in that The first conductor and the second conductor are arranged opposite to each other in the axial direction of the rotating shaft.

16. The lamp according to claim 9, characterized in that The first adapter assembly includes a first circuit board and a first isolation block. The first circuit board is located on a side of the first conductor away from the lamp arm. The first conductor includes a first conductive plate and a first elastic probe. The first isolation block is located between the first conductive plate and the first circuit board. The first elastic probe is installed on the first conductive plate. The first elastic probe passes through the first isolation block and abuts against the first circuit board.

17. The lamp according to claim 16, characterized in that The first isolation block is provided with a stop portion, and the stop portion is arranged at intervals from the first conductive plate in the circumferential direction. When the lamp is in an installed state, the top surface of the stop portion is axially higher than the top surface of the first conductive plate. The stop portion is used to abut the second conductor to limit the rotation range of the lamp arm.

18. The lamp according to claim 16, characterized in that The first adapter assembly includes a second circuit board and a second isolation block, the lamp holder also includes a third conductor, the third conductor is used to plug in a power supply, the second circuit board is located on the side of the third conductor away from the power supply, the third conductor includes a second conductive plate and a second elastic probe, the second isolation block is located between the second conductive plate and the second circuit board, the second elastic probe is installed on the second conductive plate, and the two elastic probes pass through the second isolation block and abut against the second circuit board.

19. The lamp according to claim 18, characterized in that The lamp holder includes a holder body, the first isolation block and the second isolation block are mounted on the holder body, the first isolation block and the holder body clamp and fix the first circuit board, and the second isolation block and the holder body clamp and fix the second circuit board.

20. The lamp according to claim 19, characterized in that The seat body extends along the axial direction of the rotating shaft, the first circuit board and the second circuit board are respectively arranged at two ends of the seat body, the first circuit board and the second circuit board are electrically connected through a wire, and the seat body is provided with a first wire passing channel that passes through in the axial direction, and the wire is located in the first wire passing channel.

21. The lamp according to claim 19, characterized in that The second adapter assembly includes a third circuit board, the second conductor includes a first spring plunger, the first spring plunger is inserted into the third circuit board, and the light-emitting body is electrically connected to the third circuit board through a wire.

22. The lamp according to claim 21, characterized in that The lamp arm includes a first cover plate and a second cover plate, the first cover plate is mounted on the lamp holder, the first cover plate and the second cover plate are respectively located on two sides of the third circuit board, and the second cover plate presses and fixes the third circuit board.

23. The lamp according to claim 22, characterized in that The lamp arm includes a light guide cover, which is installed on the first cover plate. The light guide cover encloses a light source chamber with a light outlet, and the light-emitting body is installed in the light source chamber. The side wall of the light guide cover is also provided with a wire outlet hole connected to the light source chamber, and the second cover plate forms a second wire passing channel connecting the wire outlet hole and the third circuit board.

24. A micro-droplet generating device, characterized in that: The micro-droplet generating device comprises the lamp according to any one of claims 1 to 23.

25. The micro-droplet generating device according to claim 24, characterized in that: The micro-droplet generating device also includes a workbench and an imaging module. The microfluidic chip is placed on the workbench. The workbench is provided with an observation hole for exposing the microfluidic chip. The imaging module includes an objective lens. The objective lens and the light emitter are respectively arranged on both sides of the workbench.

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