Lamp bead assembly and electric tool

Abstract

The utility model discloses a lamp bead assembly and an electric tool, and relates to the technical field of electric tools. The lamp bead assembly comprises a lamp bead, a pin, a lead wire and a lamp cover, the lamp bead, the pin and the lead wire are fixedly connected in sequence, the lead wire is used for being connected with a circuit board, the lamp cover is used for being fixedly connected with a shell of the electric tool, the lamp bead is installed on the lamp cover in a clamped mode, and the lead wire is fixed to the lamp cover in a limited mode. According to the lamp bead assembly and the electric tool, the problem that in the prior art, when the indicating function of the electric tool is achieved in an LED lamp bead mode, the LED lamp bead and a machine shell of the electric tool are difficult to install can be solved.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to application number 2024206453663 filed with the China Patent Office on March 29, 2024 and named “Power Tools”. Technical Field

[0003] The utility model relates to the technical field of electric tools, in particular to a lamp bead component and an electric tool. Background Art

[0004] In the prior art, the product status indication function is realized by an indication panel, and a light structure is provided on the indication panel. The flashing frequency of the light of the light structure can indicate the working status of the product. At present, there are generally two types of light structures on power tools: the first is the form of welding small LEDs (square or round components) on the circuit board, which has the disadvantage of complex structure, requires special design and layout space, and uses transparent lampshades to protect the LEDs; the second is the form of LED lamp beads, which include lamp beads, metal pins and extended wiring harnesses. When the above structure is installed on the casing of the power tool, due to the small size of the LED lamp beads, there is a problem of difficulty in installation. Utility Model Content

[0005] The purpose of the utility model is to provide a lamp bead assembly and an electric tool, which can solve the problem of difficulty in installing LED lamp beads and the casing of the electric tool when the indication function of the electric tool is realized in the form of LED lamp beads in the prior art.

[0006] The embodiment of the utility model is achieved as follows:

[0007] The first aspect of the embodiment of the utility model provides a lamp bead assembly, including a lamp bead, a pin, a lead wire and a lamp cover, wherein the lamp bead, the pin and the lead wire are fixedly connected in sequence, the lead wire is used to connect to a circuit board, the lamp cover is used to be fixedly connected to a housing of an electric tool, the lamp bead is snap-fitted and installed on the lamp cover, and the lead wire is fixedly fixed on the lamp cover. The lamp bead assembly can solve the problem of difficulty in installing LED lamp beads and the housing of an electric tool when the indication function of an electric tool is realized in the form of LED lamp beads in the prior art.

[0008] Optionally, a mounting hole is provided through the lamp cover, and one end of the lamp bead away from the lead wire is snap-fitted and mounted in the mounting hole, and an end surface of the mounting hole away from the lead wire protrudes from an indicating surface of the lamp bead.

[0009] Optionally, one end of the mounting hole away from the lead wire converges toward a side close to the axis of the mounting hole to form a stopper, and the stopper is used to limit the displacement of the lamp bead relative to the lamp cover along the axial direction of the mounting hole.

[0010] Optionally, at least one limiting rib extending along the axial direction of the mounting hole is provided on the hole wall of the mounting hole, and the limiting rib is used to limit the displacement of the lamp bead relative to the lamp cover in the radial direction of the mounting hole.

[0011] Optionally, a mounting arm is further provided on the lamp cover, and a wire clamping groove having an opening is provided at one end of the mounting arm away from the mounting hole, and the lead wire is fixed to the wire clamping groove by limiting the opening.

[0012] Optionally, the opening of the wire clamping slot has a center line that is perpendicular to the axis of the mounting hole and located in the same plane.

[0013] Optionally, a vertical distance between an end surface of the lamp bead close to the lead and a wall surface of the wire clamping groove close to the mounting hole is D, a length of the pin is L, and the following relationship is satisfied: 1.5L≤D≤3L.

[0014] Optionally, an extension direction of the lamp cover and an extension direction of the mounting arm are perpendicular to each other.

[0015] Optionally, a holding arm is further provided on the lamp cover, and the holding arm and the mounting arm are parallel and spaced apart at opposite ends of the lamp cover, so that the holding arm, the lamp cover and the mounting arm together form a U-shaped structure.

[0016] The second aspect of the embodiment of the utility model provides an electric tool, comprising a housing and the above-mentioned lamp bead assembly, wherein the lamp cover of the lamp bead assembly is mounted on the housing. The lamp bead assembly can solve the problem of difficulty in mounting the LED lamp bead and the housing of the electric tool when the LED lamp bead is used to realize the indication function of the electric tool in the prior art.

[0017] The beneficial effects of the embodiments of the utility model include:

[0018] The lamp bead assembly includes a lamp bead, a pin, a lead and a lamp cover. The lamp bead, the pin and the lead are fixedly connected in sequence. The lead is used to connect to the circuit board of the power tool, and the lamp cover is used to be fixedly connected to the housing of the power tool. The lamp bead is snap-fitted and installed on the lamp cover, and the lead is limited and fixed on the lamp cover. Since there is no direct installation relationship between the above-mentioned lamp bead, pin and lead and the housing, it is only necessary to install the lamp cover of the lamp bead assembly on the housing to achieve installation between the lamp bead assembly and the housing, which makes installation simpler. Moreover, since the lamp bead is snap-fitted and installed on the lamp cover, and the lead is also limited and fixed on the lamp cover, there is basically no relative movement between the various components of the lamp bead assembly, which effectively reduces the risk of breakage of the two connection points of the pin, thereby ensuring the normal operation of the lamp bead and reliably indicating the working status of the power tool for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 One of the structural schematic diagrams of the electric tool provided by the embodiment of the utility model;

[0021] Figure 2 A second structural diagram of an electric tool provided by an embodiment of the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of

[0023] Figure 4 One of the structural schematic diagrams of the lamp bead assembly provided in the embodiment of the utility model;

[0024] Figure 5 The second structural schematic diagram of the lamp bead assembly provided in the embodiment of the utility model;

[0025] Figure 6 A schematic diagram of the structure of a lamp cover provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] When the electric tools in the prior art use LED lamp beads to realize the indication function of the electric tools, due to the small size of the LED lamp beads, it is difficult to arrange the lamp beads and the extended wiring harness in the middle position of the casing when installing the LED lamp beads and the casing of the electric tool, resulting in problems of difficulty in installation and inconvenience in operation. In addition, the installation operation is also likely to cause the metal pins to bend, and there is a problem that the bent metal pins and the lamp beads are prone to breakage.

[0033] To solve the above problems, please refer to Figures 1 to 3 The embodiment of the present application provides an electric tool 200, including a shell 210 and a lamp bead assembly 100. When installing the lamp bead assembly 100 and the shell 210, it is only necessary to install the lamp cover 40 of the lamp bead assembly 100 on the shell 210. Since the size of the lamp cover 40 is much larger than that of the lamp bead 10, the lamp bead assembly 100 can solve the problem of difficulty in installing LED lamp beads and the shell of the electric tool when the indication function of the electric tool is realized in the form of LED lamp beads in the prior art.

[0034] For details, please refer to Figures 4 to 6 The lamp bead assembly 100 includes a lamp bead 10, a pin 20, a lead 30 and a lamp cover 40. The lamp bead 10, the pin 20 and the lead 30 are fixedly connected in sequence. The lead 30 is used to connect to the circuit board of the power tool 200. The lamp cover 40 is used to be fixedly connected to the housing 210 of the power tool 200. The lamp bead 10 is snap-fitted and installed on the lamp cover 40, and the lead 30 is limited and fixed on the lamp cover 40. The extension direction of the pin 20 is parallel to the axis of the lamp bead 10. Since there is no direct installation relationship between the above-mentioned lamp bead 10, the pin 20 and the lead 30 and the housing 210, it is only necessary to install the lamp cover 40 of the lamp bead assembly 100 on the housing 210 to achieve the installation between the lamp bead assembly 100 and the housing 210, which is simpler to install. Moreover, since the lamp bead 10 is snap-fitted and installed on the lamp cover 40 and the lead wire 30 is also fixed on the lamp cover 40, there is basically no relative movement between the components of the lamp bead assembly 100, which effectively reduces the risk of breakage of the two connection points (weak connection points) of the pin 20, thereby ensuring the normal operation of the lamp bead 10 and reliably indicating the working status of the power tool 200 for a long time.

[0035] The installation process of the above-mentioned power tool 200 is specifically as follows: before installing the lamp bead assembly 100 and the shell 210, the lamp bead 10, the pin 20 and the lead 30 can be fixedly connected in sequence to form a lamp bead structure; then the lamp bead structure and the lamp cover 40 are installed, wherein the lamp bead 10 can be installed on the lamp cover 40 by snap-fitting, so that the lamp bead 10 structure and the lamp cover 40 can be installed, and at the same time, it can also be fixed on the lamp cover 40 by limiting the lead 30, so that the lamp cover 40 can limit the lead 30; finally, the lamp bead assembly 100 formed after the lamp bead structure and the lamp cover 40 are installed is installed on the shell 210 through the lamp cover 40, so that the lamp bead assembly 100 and the shell 210 can be installed.

[0036] The lamp bead 10 extends longitudinally, and the extension direction of the lamp bead 10 is parallel to the extension direction of the pin 20. The lamp bead 10 has an axis in its extension direction, and the extension direction of the pin 20 is parallel to the axis of the lamp bead 10. The axis of the lamp bead 10 is located in the middle of the two pins 20. The layout is balanced and the structure is compact.

[0037] like Figure 1 and Figure 2 As shown, the housing 210 can be divided into two sub-housings, and the two sub-housings are buckled together to form the housing 210, so as to facilitate the installation of the components inside the housing 210. When installing the lamp bead assembly 100 and the housing 210, the lamp cover 40 can be first installed on one of the sub-housings through the snap-fit ​​structure, and then the two sub-housings 210 are buckled together, so that the lamp cover 40 is centrally arranged in the middle position of the housing 210 through the positioning installation between the lamp cover 40 and the sub-housing. For example, the two sub-housings are symmetrically provided with mounting grooves, one half of the outer edge of the lamp cover 40 is snapped into the mounting groove of one of the sub-housings, and the other half of the outer edge of the lamp cover 40 is snapped into the mounting groove of the other sub-housing.

[0038] like Figures 4 to 6 As shown, in this embodiment, a mounting hole 41 is provided through the lamp cover 40, and the end of the lamp bead 10 away from the lead wire 30 is snap-fitted and installed in the mounting hole 41, and the end surface of the mounting hole 41 away from the lead wire 30 protrudes from the indicating surface of the lamp bead 10, so that the lamp bead 10 is protected by the lamp cover 40, thereby avoiding problems such as wear on the indicating surface of the lamp bead 10. In the actual installation process, the user can hold the lamp bead 10 and align it with the mounting hole 41, and then press the lamp bead 10 along the axial direction of the mounting hole 41, so that the end of the lamp bead 10 away from the lead wire 30 enters the mounting hole 41, and after pressing in place, the end of the lamp bead 10 away from the lead wire 30 can be snap-fitted and installed in the mounting hole 41.

[0039] like Figure 5 and Figure 6 As shown, in this embodiment, one end of the mounting hole 41 away from the lead wire 30 converges toward the side close to the axis of the mounting hole 41 to form a stopper 411, and the stopper 411 is used to limit the displacement of the lamp bead 10 relative to the lamp cover 40 along the axial direction of the mounting hole 41. As a result, when the user presses the lamp bead 10 along the axial direction of the mounting hole 41, when the end of the lamp bead 10 away from the lead wire 30 abuts against the stopper 411, it can be considered that the lamp bead 10 has been installed in place, so that the stopper 411 prevents the lamp bead 10 from passing through the mounting hole 41 and extending out of the mounting hole 41.

[0040] Regarding the specific shape of the stopper 411, those skilled in the art should be able to make a reasonable selection and design according to the actual situation, and no specific restrictions are made here. For example, the stopper 411 can be in a circular ring shape, which can ensure that the stopper 411 can stop the lamp bead 10 and prevent the stopper 411 from affecting the indication function of the lamp bead 10. Regarding the hollow diameter of the circular stopper 411, a reasonable design should be made based on the ability to stop the lamp bead 10 and the ability of the lamp bead 10 to normally indicate.

[0041] like Figures 4 to 6 As shown, in this embodiment, at least one limiting rib 412 extending along the axial direction of the mounting hole 41 is provided on the hole wall of the mounting hole 41, and the limiting rib 412 is used to limit the displacement of the lamp bead 10 relative to the lamp cover 40 along the radial direction of the mounting hole 41. In particular, along the axial direction of the mounting hole 41, the length of the limiting rib 412 can be less than or equal to the length of the mounting hole 41. When the length of the limiting rib 412 is less than the length of the mounting hole 41, the limiting rib 412 can be provided at the end of the mounting hole 41 away from the lead 30. In this way, the limiting rib 412 is not provided at the end of the mounting hole 41 close to the lead 30, which can avoid reducing the aperture of the mounting hole 41 by the limiting rib 412, thereby facilitating the alignment and installation of the lamp bead 10 and the mounting hole 41. After the lamp bead 10 enters the mounting hole 41, under the limiting effect of the limiting rib 412, it can be ensured that the lamp bead 10 will not shake relative to the lamp cover 40 along the radial direction of the mounting hole 41.

[0042] like Figures 3 to 6 As shown, in this embodiment, a mounting arm 42 is further provided on the lamp cover 40, and a wire clamping groove 421 with an opening is provided at one end of the mounting arm 42 away from the mounting hole 41, and the lead wire 30 is fixed to the wire clamping groove 421 through the opening limit. As a result, after the lamp bead 10 and the mounting hole 41 are installed in place, the user can bend the lead wire 30 to fix the lead wire 30 to the wire clamping groove 421 through the opening limit, and the groove wall of the wire clamping groove 421 limits the lead wire 30, so as to avoid relative shaking between the lead wire 30 and the pin 20, and between the pin 20 and the lamp bead 10, thereby effectively avoiding the connection point between the lead wire 30 and the pin 20, and the connection point between the pin 20 and the lamp bead 10 from breaking, thereby improving the service life of the lamp bead assembly 100 and the electric tool 200.

[0043] The width of the wire-clamping groove 421 should be greater than or equal to the outer diameter of the lead 30 to ensure that the lead 30 can be fixed in the wire-clamping groove 421. Preferably, there are two pins 20 and two leads 30, and the two pins 20 have the same structure and size, and the two leads 30 have the same structure and size, and the leads 30 correspond to and are connected to the pins 20 one by one. The width of the wire-clamping groove 421 is slightly larger than the outer diameter of the lead 30 and less than twice the outer diameter of the lead 30, which can ensure that both leads 30 can easily enter the wire-clamping groove 421, and the two leads 30 squeeze each other in the width direction after being clamped in, and can also avoid the two leads 30 from shaking significantly relative to the wire-clamping groove 421, thereby causing the pin 20 to be easily bent, thereby avoiding the problem of the pin 20 being easily broken. In this embodiment, the length direction of the wire-clamping groove 421 refers to the direction parallel to the axis of the lamp bead 10; with the surface of the wire-clamping groove 421 closest to the mounting hole 41 as a reference, the width direction is the direction perpendicular to the length direction.

[0044] like Figure 6 As shown, in this embodiment, the opening of the wire clamping groove 421 has a center line that is perpendicular to the axis of the mounting hole 41 and located in the same plane. In other words, the wire clamping groove 421 is aligned with the mounting hole 41, thereby ensuring that after the lamp bead 10 and the mounting hole 41 are installed in place and the lead wire 30 is limited and fixed in the wire clamping groove 421, the pin 20 connected between the lamp bead 10 and the lead wire 30 will not be bent, thereby avoiding the problem of the pin 20 being easily broken.

[0045] Optionally, see Figure 5 , the vertical distance between the end surface of the lamp bead 10 close to the lead 30 and the wall surface of the clamping groove 421 close to the mounting hole 41 is D, the length of the pin 20 is L, and the following relationship is satisfied: 1.5L≤D≤3L. For example, D=2L, so as to ensure that the user will not bend the pin 20 when bending the lead 30 to introduce the lead 30 into the clamping groove 421, thereby avoiding the problem that the pin 20 is easily broken.

[0046] like Figure 5 As shown, in the present embodiment, the extension direction of the lamp cover 40 and the extension direction of the mounting arm 42 are perpendicular to each other, which not only prevents the mounting arm 42 from interfering with the installation operation of the user holding the lamp bead 10 to snap-fit ​​and install the lamp bead 10 into the mounting hole 41 of the lamp cover 40, but also facilitates the user to fix the lamp cover 40 in the shell 210 by holding the mounting arm 42, thereby improving the ease of operation when installing the lamp cover 40 and the shell 210.

[0047] Furthermore, if Figure 5As shown, a holding arm 43 is also provided on the lamp cover 40, and the holding arm 43 and the mounting arm 42 are parallel and spaced apart at opposite ends of the lamp cover 40, so that the holding arm 43, the lamp cover 40 and the mounting arm 42 together form a U-shaped structure, so that the user can hold the holding arm 43 and the mounting arm 42 to fix the lamp cover 40 in the shell 210, further improving the ease of operation when installing the lamp cover 40 and the shell 210.

[0048] In this embodiment, after the lamp bead 10 is installed in the installation hole 41 and the lead wire 30 is installed in the wire clamping groove 421, the lamp bead 10, the pin 20, the lead wire 30 and the lamp cover 40 are relatively fixed, and there is basically no relative movement between the parts. After the lamp bead assembly 100 including the lamp bead 10, the pin 20, the lead wire 30 and the lamp cover 40 are fixedly installed on the housing 210 of the power tool 200, vibration is inevitably generated during the operation of the power tool 200. Since there is basically no relative movement between the parts of the lamp bead assembly 100, there is basically no relative movement between the lamp bead 10 and the pin 20, which reduces the risk of the connection point between the lamp bead 10 and the pin 20 breaking; there is basically no relative movement between the pin 20 and the lead wire 30, which reduces the risk of the connection point between the pin 20 and the lead wire 30 breaking. As a result, the risk of the two connection points of the pin 20 (both of which are relatively easy to break weak points) breaking is effectively reduced, thereby ensuring the normal operation of the lamp bead 10 and reliably indicating the working state of the power tool 200 for a long time.

[0049] In this embodiment, the mounting hole 41 is aligned with the wire clamping slot 421, which facilitates the installation of the lead 30; the relationship between the distance between the lamp bead 10 and the wire clamping slot 421 and the length of the pin 20 avoids bending of the pin 20 during installation, and also reduces the risk of breakage of the two connection points of the pin 20, further ensuring the normal operation of the lamp bead 10, thereby reliably indicating the working status of the power tool 200 for a long time.

[0050] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lamp bead assembly, characterized in that: It includes a lamp bead, a pin, a lead and a lamp cover, wherein the lamp bead, the pin and the lead are fixedly connected in sequence, the lead is used to connect to a circuit board, the lamp cover is used to be fixedly connected to a housing of an electric tool, the lamp bead is snap-fitted and installed on the lamp cover, and the lead is limited and fixed on the lamp cover.

2. The lamp bead assembly according to claim 1, characterized in that: The lamp cover is provided with a mounting hole, one end of the lamp bead away from the lead wire is clamped and mounted in the mounting hole, and the end surface of the mounting hole away from the lead wire protrudes from the indicating surface of the lamp bead.

3. The lamp bead assembly according to claim 2, characterized in that: One end of the mounting hole away from the lead wire converges toward a side close to the axis of the mounting hole to form a stopper, and the stopper is used to limit the displacement of the lamp bead relative to the lamp cover along the axial direction of the mounting hole.

4. The lamp bead assembly according to claim 2, characterized in that: At least one limiting rib extending along the axial direction of the mounting hole is arranged on the hole wall of the mounting hole, and the limiting rib is used to limit the displacement of the lamp bead relative to the lamp cover along the radial direction of the mounting hole.

5. The lamp bead assembly according to claim 2, characterized in that: The lamp cover is also provided with a mounting arm, and one end of the mounting arm away from the mounting hole is provided with a wire clamping groove with an opening, and the lead wire is fixed in the wire clamping groove through the opening limit.

6. The lamp bead assembly according to claim 5, characterized in that: The opening of the wire clamping slot has a center line which is perpendicular to the axis of the mounting hole and located in the same plane.

7. The lamp bead assembly according to claim 5, characterized in that: The vertical distance between the end surface of the lamp bead close to the lead wire and the wall surface of the wire clamping groove close to the mounting hole is D, the length of the pin is L, and the following relationship is satisfied: 1.5L≤D≤3L.

8. The lamp bead assembly according to claim 5, characterized in that: An extending direction of the lamp cover and an extending direction of the mounting arm are perpendicular to each other.

9. The lamp bead assembly according to claim 5, characterized in that: The lamp cover is also provided with a holding arm, which is parallel to the mounting arm and spaced apart at opposite ends of the lamp cover, so that the holding arm, the lamp cover and the mounting arm together form a U-shaped structure.

10. An electric tool, characterized in that: It comprises a housing and the lamp bead assembly according to any one of claims 1 to 9, wherein a lamp cover of the lamp bead assembly is mounted on the housing.

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