Power supply and electric power tool

Abstract

A power supply and an electric power tool. The power supply comprises: a housing (1); a battery holder (10), which is provided inside the housing (1) and is fixedly connected thereto; battery cells (101), which are at least partially fixed on the battery holder (10); a lamp panel (7), which is mounted to the housing (1) at an end portion of one end of the housing; and a first support member (103), which is connected to the battery holder (10) and at least partially supports the lamp panel (7).

Description

Power supplies and power tools

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 18, 2023, with application number 202322530907.6, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of tool technology, for example, to power supplies and electric tools. Background Art

[0003] With the development of the tool industry, electric tools have emerged that use motor-driven transmission mechanisms to drive the working head. With the development of battery technology, AC tools are gradually developing towards lithium batteries and lightweight.

[0004] In the related art, Chinese patent application number CN00101932.5 discloses an electric power tool having a tool housing with a rail-and-groove structure for removably mounting a rechargeable battery cartridge, and a locking device including a clamping member disposed within the housing. A frame portion is disposed on the tool housing adjacent to the rail-and-groove structure and includes a recessed portion. The clamping member and a spring connected thereto are introduced into the recessed portion from the open side thereof. An operating member is mounted perpendicular to the recessed portion, with one arm accessible and the other arm engaging the clamping member to enable displacement from a locked position.

[0005] However, the light board in the power supply is pressed against the battery bracket via the button cap, and this fixing method is not convenient for installing the power supply.

[0006] Summary of the Invention

[0007] Based on this, it is necessary to provide a power supply and an electric tool for the situation where the light board in the power supply is inconvenient to install.

[0008] An embodiment of the present application provides a power supply, including:

[0009] shell;

[0010] a battery bracket, fixedly connected to the housing;

[0011] a battery cell, at least partially fixed to the battery holder;

[0012] A light panel is mounted on one end of the housing;

[0013] The first support member is connected to the battery bracket and at least partially supports the light panel.

[0014] The battery bracket is located at both ends of the light board and is provided with clamping plates.

[0015] The clamping plate is made of elastic material.

[0016] A stop portion is formed on one side of the clamping plate away from the battery bracket, and a stop plane is formed on one side of the stop portion facing the lamp board.

[0017] A guide portion is formed on one side of the stop portion facing away from the lamp board.

[0018] A positioning notch is provided on the top of the light board, and the battery bracket is located on the top of the light board and is formed with a protrusion that can be inserted into the positioning notch.

[0019] A connecting wire is provided on the lamp panel, and a limiting piece for the connecting wire to pass through is provided on the battery bracket.

[0020] The limiting member is formed with an arc groove for embedding the connecting wire; the limiting member is provided with an expanded diameter portion at the top of the arc groove, and the expanded diameter portion extends from the arc groove to the top wall of the limiting member.

[0021] A button cap is installed on the shell, and an operation button is connected to the light board. After the power supply is assembled, the button cap contacts the operation button; a reset piece is provided on the side of the button cap facing the operation button.

[0022] The present application also provides an electric tool, comprising:

[0023] accommodating portion;

[0024] a motor housed in the accommodation portion and having an output shaft;

[0025] The handle portion has a first end connected to the accommodating portion and a second end formed with a sole, which is configured to be connected to a power source of any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of the connection between a power source and a power tool in one embodiment of the present application;

[0027] FIG2 is a schematic diagram of an exploded structure of a power supply in one embodiment of the present application;

[0028] FIG3 is a schematic top view of a power supply in one embodiment of the present application;

[0029] FIG4 is a schematic cross-sectional view of the structure of the blocking slot of the power supply in one embodiment of the present application;

[0030] FIG5 is a bottom schematic diagram of a connection member of a power supply in an embodiment of the present application;

[0031] FIG6 is a schematic cross-sectional view of a connector of a power supply in one embodiment of the present application;

[0032] FIG7 is an enlarged schematic diagram of the structure at point A in FIG2 .

[0033] Description of the drawings: 1. Housing; 10. Battery holder; 101. Battery cell; 102. Circuit board; 103. First support member; 104. Protrusion; 105. Limiting member; 1051. Wire groove; 1052. Diameter expansion portion; 11. Upper housing; 110. Limiting member; 111. Guide groove; 112. Positioning groove; 12. Lower housing; 120. Rubber coating; 121. Light guide column; 122. Button cap; 13. Operating hole; 131. Operating member; 1311. Accommodating portion; 1312. Insertion board; 14. Slot;

[0034] 2. Connecting portion; 21. Terminal slot; 22. Communication terminal slot; 23. Guide rail; 231. Sliding space; 232. Abutment portion; 24. Enlarged portion; 241. Guide surface; 25. Support groove; 26. Locking hole; 231. Positioning portion;

[0035] 3. Blocking groove; 31. Closing plate; 32. Guide surface;

[0036] 4. Connecting member; 41. Elastic member; 42. Second supporting member; 421. Supporting facade; 43. Positioning member; 431. Positioning facade;

[0037] 5. Locking member; 51. Giving portion; 52. Gathering surface; 521. Notch portion; 53. Contact portion;

[0038] 6. protrusion;

[0039] 7. Light board; 71. Operation button; 72. Positioning notch;

[0040] 8. Clamping plate; 81. Stop portion; 811. Stop plane; 812. Guide portion;

[0041] 9. Power tool; 91. Accommodation portion; 92. Handle portion; 93. Foot portion; 931. Blocking member; 94. Slide groove; 941. Extension portion; 942. Support portion; 9421. Sub-support portion; 95. Lock hole. DETAILED DESCRIPTION

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 should not be understood as a limitation on the present application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0044] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0045] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0047] Referring to Figures 1 and 2, Figure 1 shows a schematic structural diagram of the connection between the power supply and the power tool in an embodiment of the present application, and Figure 2 shows a schematic structural diagram of the exploded power supply in an embodiment of the present application. The power supply provided in an embodiment of the present application is configured to be connected to the power tool 9, including a housing 1, a battery holder 10, a battery cell 101, a light board 7 and a first support member 103. The battery holder 10 is fixedly connected to the housing 1 and is accommodated in the housing 1. The battery cell 101 can be at least partially fixed on the battery holder 10. The light board 7 is installed at one end of the housing 1. The first support member 103 is connected to the battery holder 10 and at least partially supports the light board 7.

[0048] The present application also discloses an electric tool 9, which is connected to a power source. The electric tool 9 includes at least a housing 91, a motor, and a handle 92. The housing 91 is configured to accommodate the motor, which has an output shaft. The output shaft can be connected to a transmission mechanism and configured to output power, or the power can be output directly by the motor. The first end of the handle 92 is connected to the housing 91. The connection here can be integrally formed or can be installed in other ways. The second end of the handle 92 is formed with a foot 93, which is connected to the power source, thereby obtaining electrical energy from the power source to drive the motor to rotate.

[0049] The housing 1 may include an upper shell 11 and a lower shell 12, which are connected by bolts. The upper shell 11 and the lower shell 12 may be made of an insulating material such as resin or plastic. The upper shell 11 and the lower shell 12 may form a rectangular parallelepiped. The bottom of the lower shell 12 is coated with a rubber layer 120. The rubber layer 120 covers the bottom surface of the lower shell 12 and bends upward to cover at least part of the surrounding walls of the lower shell 12. The upper shell 11 and the lower shell 12 are hollow inside to form a cavity configured to accommodate the battery holder 10 and the battery cell 101. One end of the upper shell 11 protrudes upward to form a limit portion 110. The upper surface of the upper shell 11 protrudes to form a connecting portion 2. One end of the connecting portion 2 may be integrally formed with the limit portion 110. When the power supply is connected to the power tool 9, the limit portion 110 can limit the position of the power supply moving along the length direction of the connecting portion 2.

[0050] A wiring terminal slot 21 and a communication terminal slot 22 are formed along the length of the upper shell 11 at the end of the connecting portion 2 away from the limiting portion 110. Both the wiring terminal slot 21 and the communication terminal slot 22 extend along the length of the upper shell 11 and are arranged in an array along the width direction. Both the wiring terminal slot 21 and the communication terminal slot 22 extend from the top wall of the connecting portion 2 into the cavity formed by the upper shell 11 and the lower shell 12 and extend to the end wall of the connecting portion 2 away from the limiting portion 110 in the length direction. As a result, the wiring terminal slot 21 and the communication terminal slot 22 open on the top wall of the connecting portion 2 and on the end wall at one end in the length direction.

[0051] The battery holder 10 can be mounted with a circuit board 102 at the top. Chips and other components configured to control and detect the battery cells 101 are connected to the circuit board 102. Wiring terminals can also be mounted on the circuit board 102. The wiring terminals protrude from the surface of the circuit board 102 and can be embedded in the connector 2. The wiring terminals can include female terminals and female communication terminals. Two wiring terminal slots 21 can be provided, located on the outer sides of the upper housing 11 in the width direction. Two communication terminal slots 22 can be provided, located on either side of the center line of the upper housing 11 in the width direction and can be located between the two communication terminal slots 22. The wiring terminal slot 21 is configured to accommodate female terminals, while the communication terminal slot 22 is configured to accommodate female communication terminals. Male wiring terminals and male communication terminals are mounted on the foot 93. The male wiring terminal passes through the wiring terminal slot 21 and plugs into the female wiring terminal. The male communication terminal passes through the communication terminal slot 22 and plugs into the female communication terminal, enabling the power supply to and communication with the power tool 9.

[0052] The upper housing 11 defines a blocking slot 3, the centerline of which may be coplanar with the widthwise centerline of the upper housing 11. A blocking member 931 is formed on the foot 93 of the power tool 9 connected to the power source, located at the blocking slot 3. The blocking member 931 is inserted into the blocking slot 3 to provide positioning and / or isolation.

[0053] Referring to Figures 2 and 3, Figure 3 shows a schematic top view of a power supply in one embodiment of the present application. The length L1 of the blocking slot 3 can be longer than half the length L2 of the communication terminal slot 22. It is understood that the length of the blocking slot 3 can also be other lengths, as long as it can block the two communication terminals and reduce the impact between the two communication terminals. The distance between the blocking slot 3 and the two communication terminal slots 22 can be equal or different; to facilitate the arrangement of the position of the communication female terminal, the distance between the blocking slot 3 and the two communication terminal slots 22 in the embodiment of the present application is equal.

[0054] The distance d1 between the center line of the blocking slot 3 and the center line of the communication terminal slot 22 is greater than 6 mm, for example, it can be 6.25 mm; the distance d0 between the center line of the communication terminal slot 22 and the center line of the wiring terminal slot 21 is less than the distance d2 between the center lines of two adjacent communication terminal slots 22, thereby reducing the mutual influence between the communication terminals.

[0055] Referring to Figures 1 and 3, a closing plate 31 can be formed between the bottom wall and side walls of the barrier groove 3 and the cavity formed by the upper and lower shells 12. The setting of the closing plate 31 ensures that the barrier groove 3 at the top wall of the connecting portion 2 or the end wall of the barrier groove 3 in the length direction is not connected to the interior of the cavity formed by the upper and lower shells 12.

[0056] The height of the blocking member 931 is greater than half of the height of the blocking groove 3. It is understandable that the height of the blocking groove 3 can also be equal to the height of the blocking groove 3, as long as the clamping feet of the two communication terminals can be blocked to reduce the impact between the two communication terminals.

[0057] A guide surface 32 is formed at the opening and the top of the blocking groove 3 . The guide surface 32 is inclined toward the center of the blocking groove 3 so that the blocking member 931 can be inserted into the blocking groove 3 .

[0058] The barrier 931 can be made of magnetic-isolating material and / or embedded within the inner wall of the barrier slot 3. This material effectively shields signals, thereby reducing communication interference between the two communicating female terminals. The magnetic-isolating material can be embedded within the barrier 931 and / or the barrier slot 3, or can be made entirely of magnetic-isolating material, or even coated on the barrier 931 and / or the barrier slot 3, as long as it effectively eliminates interference between the two communicating female terminals.

[0059] The barrier 931 can be made of metal material and / or the inner wall of the barrier groove 3 can be embedded with conductive metal material. The metal material can effectively shield the signal, thereby playing the role of communication isolation and reducing the impact between the two communication female terminals. When the barrier groove 3 is set to communication isolation, the barrier 931 and the barrier groove 3 extend the distance between the two communication female terminals, thereby reducing the impact between the two communication terminals. The metal material can be embedded in the barrier 931 and / or the barrier groove 3, or it can be made entirely of metal material, and even the metal material can be coated on the barrier 931 and / or the barrier groove 3, as long as it can eliminate the impact between the two communication female terminals.

[0060] Referring to Figures 1 and 2, a guide rail 23 may be formed on the top sidewall of the connecting portion 2. A guide rail 23 may be formed on each of the sidewalls along the width direction of the connecting portion 2. The guide rail 23 may be integrally formed with the connecting portion 2 or mounted on the connecting portion 2. A sliding space 231 may be formed between the guide rail 23 and the upper housing 11. A slide groove 94 adapted to the guide rail 23 may be formed at the sole 93 of the power tool 9 connected to the power source. The slide groove 94 may extend from the sole 93 where the power source is connected to the sole 93 toward the power source to form an extension portion 941. The extension portion 941 may be bent toward the connecting portion 2 of the power source to form a support portion 942. The sliding space 231 may be configured to accommodate the support portion 942 and to limit the support portion 942 from sliding within the sliding space 231. The connecting portion 2 is located below the guide rail 23 and can be integrally formed with an abutment portion 232 at one end close to the limiting portion 110. When the power supply is connected to the power tool 9, the abutment portion 232 can abut the corresponding position of the power tool 9, thereby limiting the position of the power supply sliding relative to the power tool 9.

[0061] The connecting portion 2 may further include an enlarged portion 24 at one end located below the guide rail 23 and near the stopper 110. The enlarged portion 24 may be integrally formed with the side wall of the connecting portion 2. A guide surface 241 is formed between the enlarged portion 24 and the side wall of the connecting portion 2. The guide surface 241 may be a curved surface or an inclined surface, as long as it can provide a guiding transition.

[0062] Referring to Figures 2 and 4, Figure 4 shows a schematic structural cross-sectional view of the blocking groove of the power supply in an embodiment of the present application. The height h1 between the enlarged portion 24 and the side wall of the connecting portion 2 is at least 0.5 mm. In the embodiment of the present application, the height between the enlarged portion 24 and the side wall of the connecting portion 2 is 1 mm. Of course, it can be understood that other values ​​can also be selected for the height as long as the support portion 942 can be clamped.

[0063] The distance between the two supporting portions 942 is less than or equal to the distance between the two enlarged portions 24, and greater than or equal to the distance between the side walls of the connecting portion 2; when the supporting portion 942 of the power tool 9 contacts the side wall of the connecting portion 2, the supporting portion 942 can smoothly transition to the enlarged portion 24 under the guidance of the guide surface 241, thereby forming a sense of frustration and / or facilitating the supporting portion 942 to clamp the enlarged portion 24 to facilitate the fixation of the power supply.

[0064] A support groove 25 is provided at one end of the side wall of the connecting portion 2 away from the abutment portion 232. A sub-support portion 9421 may be formed on the side wall of the supporting portion 942 facing the connecting portion 2. The sub-support portion 9421 may be integrally formed with the supporting portion 942. The sub-support portion 9421 can be inserted into the support groove 25 when the power supply and the power tool 9 are mated, that is, when the supporting portion 942 is inserted into the sliding space 231. When the guide rail 23 and the sliding groove 94 wear, the sub-support portion 9421 and the support groove 25 cooperate with each other, thereby improving the stability of the mating between the power supply and the power tool 9 when the guide rail 23 wears.

[0065] The terminal slot 21 can be located at a position away from the center line of the communication terminal slot 22 in the width direction of the upper shell 11, that is, the terminal slot 21 is closer to the outer edge of the support portion 942 in the width direction than the communication terminal slot 22. In the absence of the support slot 25, the distance d3 between the center line of the terminal slot 21 and the side wall of the connecting portion 2 is greater than or equal to 6 mm. In the embodiment of the present application, the distance between the center line of the terminal slot 21 and the side wall of the connecting portion 2 is 7.75 mm. In the presence of the support slot 25, the distance d4 between the center line of the terminal slot 21 and the side wall of the support slot 25 is greater than or equal to 6 mm, and the distance d3 between the center line of the terminal slot 21 and the outer wall of the connecting portion 2 is greater than or equal to 6.5 mm. In the embodiment of the present application, the distance between the center line of the terminal slot 21 and the outer wall of the connecting portion 2 is at least 6.75 mm.

[0066] The minimum value x1 of the thickness between the inner wall and the outer wall of the connecting part 2 is 2.5 mm, and in the embodiment of the present application it is 2.7 mm; under the premise of having a support groove 25, the minimum value x2 between the inner wall and the outer wall of the connecting part 2 is 1.5 mm, and in the embodiment of the present application it can be 1.72 mm, maintaining the wall thickness of the connecting part 2, thereby maintaining the strength of the connecting part 2.

[0067] 1 and 4 , the length L3 of the support groove 25 is at least 15 mm, the width W1 is at least 0.5 mm, and the height h2 is at least 1 mm. In the embodiment of the present application, the length of the support groove 25 is 30 mm, the width is 1 mm, and the height is 2.5 mm, thereby facilitating the improvement of the stability of the support groove 25 and the sub-support portion 9421 .

[0068] The support groove 25 can be located at the connection between the connecting part 2 and the upper shell 11, that is, the bottom end of the space formed by the guide rail 23 and the top wall of the upper shell 11. For example, the support groove 25 can also extend from the top wall of the upper shell 11 to the guide rail 23 and the connecting part 2, that is, the support groove 25 and the side wall of the connecting part 2 form a stepped shape, thereby facilitating the assembly of the power supply to the sole 93 of the power tool 9.

[0069] An insulating sleeve is provided on the outer side of the female terminal, and a gap is reserved between the insulating sleeve and the inner wall of the connecting part 2. The size of the gap is greater than or equal to 0.5 mm. The gap size in the embodiment of the present application is 0.6 mm-0.8 mm.

[0070] The length L3 of the support groove 25 is greater than or equal to half of the distance d5 from the end wall of the connecting part 2 close to the terminal groove 21 to the expanded part 24. In the embodiment of the present application, the length of the support groove 25 is equal to half of the size from the end wall of the connecting part 2 close to the terminal groove 21 to the expanded part 24.

[0071] Referring to Figures 2 and 3, an operating hole 13 is formed on the limiting portion 110, and the operating hole 13 passes through the upper shell 11 along the height direction of the upper shell 11. An operating member 131 is slidably connected in the operating hole 13, and a locking hole 26 is formed at one end of the connecting portion 2 close to the limiting portion 110. The operating member 131 is embedded in the bottom of the upper shell 11 to form a connecting member 4, and a locking member 5 can be integrally formed at the end of the connecting member 4 away from the operating member 131.

[0072] 1 and 2 , an elastic member 41 is mounted between the lower portion of the connector 4 and the circuit board 102. The elastic member 41 may be a spring that pushes the operating member 131 into the operating hole 13 and the locking member 5 into the locking hole 26. A locking hole 95 is defined on the sole 93 of the power tool 9 at a position corresponding to the locking member 5. The locking member 5 can be inserted into the locking hole 95 to secure the position of the power supply in the longitudinal direction.

[0073] 2 and 3 , the locking member 5 has a relief portion 51 formed on the side facing away from the limiting portion 110. The relief portion 51 can be an arcuate surface or an inclined surface, as long as it can push the locking member 5 downward when pressed against the relief portion 51. When pressed against the relief surface, the locking member 5 compresses the elastic member 41 and enters the upper housing 11. When the locking member 5 moves to the locking hole 95, the elastic member 41 automatically pops out and locks the locking member.

[0074] Referring to Figures 2 and 5, Figure 5 shows a schematic diagram of the bottom of the connector of the power supply in an embodiment of the present application. The elastic member 41 can be located at the bottom of the operating member 131 to facilitate better pressing of the operating member 131 to drive the locking member 5. The bottom of the operating member 131 can be formed with a receiving portion 1311, and the receiving portion 1311 is configured to support the elastic member 41. The receiving portion 1311 can be a protrusion for the elastic member 41 to be sleeved, or it can be a tubular groove for the elastic member 41 to be inserted. It can be understood by those skilled in the art that the receiving portion 1311 can be all equivalent ways of providing support for the elastic member 41. In the embodiment of the present application, the receiving portion 1311 is a tubular groove.

[0075] Referring to Figures 2 and 3 , the side of the locking member 5 facing the stopper 110 is a vertical surface, and the side of the locking member 5 facing away from the yielding surface is provided with a gathering surface 52. The gathering surface 52 can be arc-shaped, i.e., the locking member 5 can be arc-shaped along its length, i.e., when viewed from the top of the locking member 5 downward, one side of the locking member 5 is arc-shaped, with an arc length range of at least 15 degrees, and in the embodiment of the present application, the arc length range is 19 degrees, and the arc radius is at least 95 mm, and in the embodiment of the present application, the arc radius R can be 103 mm. The gathering surface 52 can also be an isosceles triangle. The configuration of the gathering surface 52 provides a larger contact area than a flat surface, thereby more stably securing the power supply to the power tool 9. Furthermore, the configuration of the gathering surface 52 increases the contact area between the locking member 5 and the lock hole 95, while generating a gathering force toward the center of the length of the locking member 5, thereby reducing the deflection of the power supply in the width direction of the power supply. And / or, the arcuate surface increases the contact area between the locking member 5 and the lock hole 95, and can play a buffering role when impact is received in the length direction of the power supply.

[0076] The height h3 of the protrusion of the gathering surface 52 is greater than or equal to 0.5 mm and less than or equal to 2.0 mm. When the protrusion height of the gathering surface 52 is too small, it cannot play the role of gathering or cushioning. When the protrusion height is too large, it is not convenient for demolding. In the embodiment of the present application, the protrusion height of the gathering surface 52 can be 1.55 mm.

[0077] The dimension d6 of the locking member 5 along the width direction of the connecting portion 2 is at least 30 mm. The dimension of the locking member 5 along the width direction of the connecting portion 2 can provide a basis for the contact area, which can be 33 mm in the embodiment of the present application.

[0078] A notch 521 may be provided at the midpoint of the gathering surface 52, and the minimum width W2 of the notch 521 may be 0.5 mm, and in the embodiment of the present application may be 1 mm; the housing 1 of the electric tool 9 may be formed by two half shells fixed together by bolts. During the production process, burrs may be generated on the edges of the half shells. The provision of the notch 521 may provide a certain avoidance space for the burrs and / or release the stress on the entire gathering surface 52.

[0079] A contact portion 53 may be formed at the top of the locking member 5, and the contact portion 53 may be a plane; the top wall of the locking hole 95 facing the power supply may be a plane, and the contact portion 53 contacts the plane under the action of the elastic member 41, thereby increasing the contact area between the locking member 5 and the locking hole 95, making it easier to lock the power supply and / or reducing the sinking of one side of the locking member 5.

[0080] Referring to Figures 3 and 5 , the locking hole 26 can be loosely fitted with the locking member 5 to facilitate smooth sliding of the locking member 5. A positioning portion 231 is provided on the inner wall of the locking hole 26, projecting toward the center. The positioning portion 231 is provided on each sidewall, excluding the sidewall opposite the convergence surface 52. Two positioning portions 231 can be provided on each sidewall. Each positioning portion 231 can be a rib integrally formed on the inner wall of the locking hole 26, facilitating positioning of the locking member 5 while reducing potential jamming during sliding. Of course, three positioning portions can also be provided to achieve uniform force distribution, as will be understood by those skilled in the art.

[0081] Referring to Figures 5 and 6, Figure 6 shows a cross-sectional schematic diagram of the connector of the power supply in an embodiment of the present application. The side wall of the connector 4 can be formed with a second support member 42, and the second support member 42 can be located at one end of the connector 4 close to the locking member 5; in order to maintain the stability of both sides of the connector 4, one second support member 42 can be provided on each side of the connector 4; the upper shell 11 forms a cavity for accommodating the operating member 131, the connector 4 and the locking member 5. Guide grooves 111 can be formed on both sides of the cavity, which is formed to accommodate the operating member 131, the connector 4 and the locking member 5. The guide grooves 111 extend along the height direction of the upper shell 11 to guide the movement of the connector 4.

[0082] The side wall of the connecting member 4 can also be provided with a positioning member 43, which is located on the side of the connecting member 4 close to the operating member 131. In order to maintain the stability of both sides of the connecting member 4, one positioning member 43 can be provided on each side of the connecting member 4; the upper shell 11 can also be formed with a positioning groove 112 extending along the height direction of the upper shell 11, and the positioning member 43 is slidably connected in the positioning groove 112.

[0083] A supporting vertical surface 421 can be formed on the side of the second support member 42 away from the positioning member 43, and the supporting vertical surface 421 can be set parallel to the height direction of the power supply, and the second support member 42 can be loosely fitted with the guide groove 111; a positioning vertical surface 431 can be formed on the side of the positioning member 43 away from the second support member 42, and the positioning vertical surface 431 can be set parallel to the height direction of the power supply, and the positioning member 43 can be loosely fitted with the positioning groove 112.

[0084] It can be understood that the position of the supporting facade 421 can be located on the side of the second support member 42 close to the positioning member 43, and the position of the positioning facade 431 can also be located on the side of the positioning member 43 close to the second support member 42. Of course, the position of the supporting facade 421 can be located on the side of the second support member 42 close to the positioning member 43 or on the side of the second support member 42 away from the positioning member 43, which can be randomly combined with the position of the positioning member 43. The same is true for the positioning facade 431, as long as it is limited by the two facades and the side walls of the support groove 25 and the positioning groove 112.

[0085] The distance d7 between the supporting facade 421 and the positioning facade 431 is smaller than the distance d8 between the side wall of the guide groove 111 close to the supporting facade 421 and the side wall of the positioning groove 112 close to the positioning facade 431, that is, the distance between the side wall of the guide groove 111 close to the supporting facade 421 and the supporting facade 421 is smaller than the distance between the side wall of the guide groove 111 close to the supporting facade 421 and the side wall of the second support member 42 close to the positioning member 43, and the side wall of the positioning groove 112 close to the positioning facade 431 is smaller than the distance between the side wall of the guide groove 111 close to the supporting facade 421 and the side wall of the second support member 42 close to the positioning member 43. The distance between the wall and the positioning facade 431 is smaller than the distance between the side wall of the positioning groove 112 close to the positioning facade 431 and the side wall of the positioning member 43 close to the second support member 42, so that the inclination of the connecting member 4 can be limited by the two facades of the supporting facade 421 and the positioning facade 431 and the side wall of the guide groove 111 and the side wall of the positioning groove 112; and / or the facade that limits the inclination is divided into two positions, which can improve the situation where one of the guide groove 111 or the positioning groove 112 is blocked due to dust accumulation.

[0086] Of course, it is understood that the guide groove 111 and the positioning groove 112 can also be combined into one groove to form a single groove, and the support vertical surface 421 and the positioning vertical surface 431 cooperate with the two side walls of the groove to limit the connection member 4. The second support member 42 and the positioning member 43 can also be combined into one piece. In this case, the guide groove 111 and the positioning groove 112 can be combined into one groove or two independent grooves, as long as there are two side walls to limit the two vertical surfaces.

[0087] The side wall where the guide groove 111 contacts the second support member 42 and / or the side wall where the positioning groove 112 contacts the positioning member 43 is provided with a protrusion 6. The protrusion 6 can be integrally formed on the side wall of the guide groove 111 and / or the positioning groove 112. The protrusion 6 can be a rib, and the protruding height h4 of the protrusion 6 can be 0.2 mm or 0.3 mm.

[0088] The maximum difference between the distance d8 between the side wall of the guide groove 111 near the supporting facade 421 and the side wall of the positioning groove 112 near the positioning facade 431 and the distance d7 between the supporting facade 421 and the positioning facade 431 is 1 mm, that is, the maximum movable distance of the connector 4 is 1 mm, which can be 0.2 mm in the embodiment of the present application. Under the premise that the side wall of the guide groove 111 near the supporting facade 421 and the side wall of the positioning groove 112 near the positioning facade 431 have protrusions 6 on their surfaces, the maximum difference between the distance d8 between the side wall of the guide groove 111 near the supporting facade 421 and the side wall of the positioning groove 112 near the positioning facade 431 and the distance d7 between the supporting facade 421 and the positioning facade 431 can also be 1 mm, that is, the actual movable distance of the connector 4 is the maximum distance minus the protruding height of the two protrusions 6, thereby avoiding the situation where one end of the connector 4 sinks due to uneven force.

[0089] Referring to Figures 2 and 5 , an insert plate 1312 is formed at the bottom end of the operating member 131. A slot 14 is defined on the lower housing 12 for insert plate 1312. Insert plate 1312 can be inserted into slot 14 and slide along the height of the lower housing 12. Slot 14 is a through slot running along the width of the lower housing 12. Insert plate 1312 is inserted from the top of slot 14, with the sidewalls of slot 14 providing support and positioning for insert plate 1312.

[0090] 2 , the battery holder 10 is provided with a support method different from the accommodating portion 1311 at one end close to the operating member 131 and at the bottom end of the operating member 131 . In the embodiment of the present application, the support protrusion can be provided, and the support protrusion is provided for the elastic member 41 to be mounted, thereby providing stable support for the elastic member 41 .

[0091] An LED light board 7 is mounted on one end between the batteries, near the operating member 131. An LED light is fixed to the light board 7, and a light guide 121 can be mounted on the lower housing 12 to guide the light emitted by the LED out of the upper and lower housings 11, 12. An operating button 71 is also mounted on the light board 7, and a button cap 122 is mounted on the lower housing 12. The button cap 122 contacts the operating button 71. When the operating button cap 122 presses the operating button 71, the light board 7 controls the LED light to display the power level. To facilitate resetting the button cap, a reset plate is provided on the side of the button cap facing the operating button. The reset plate is a spring plate, and both ends of the reset plate are clamped in the lower housing 12 to provide elastic force for resetting the button cap 122.

[0092] The battery holder 10 is located at the bottom of the light board 7 and is provided with a first support member 103. The first support member 103 can be a support bar. One or more first support members 103 can be provided along the length of the light board 7. In the embodiment of the present application, two first support members 103 can be provided. The first support member 103 is located at the end of the length of the light board 7. The first support member 103 can be L-shaped, with one long side integrally formed with the surface of the battery holder 10 and one short side configured to place the light board 7. The length of the short side is greater than or equal to the minimum thickness of the light board 7. This allows the short side of the first support member 103 to support the light board 7 after the light board 7 is installed, thereby reducing the stress on the wiring of the light board 7.

[0093] Referring to Figures 2 and 7, Figure 7 shows an enlarged schematic diagram of the structure of the clamping plate of the power supply in one embodiment of the present application. The battery holder 10 is located on both sides of the light board 7, and is provided with protruding clamping plates 8. The clamping plates 8 can be integrally formed with the battery holder 10. The clamping plates 8 can be located midway between the ends of the light board 7. The clamping plates 8 can be made of an elastic material. When the light board 7 is pressed between the two clamping plates 8, a gap exists between the clamping plates 8.

[0094] The side of the clamping plate 8 away from the battery holder 10 can be bent toward the center of the light board 7 to form a stopper 81. The side of the stopper 81 facing the light board 7 is formed with a stopper plane 811 that can abut against the light board 7. The surface of the stopper 81 facing away from the light board 7 is formed with a guide portion 812. The guide portion 812 can be a curved surface or an inclined surface, as long as the distance between the two stoppers 81 decreases from the side away from the light board 7 to the side close to the light board 7, thereby facilitating the insertion of the light board 7 between the two clamping plates 8.

[0095] The battery holder 10 is provided with a protrusion 104 at the top of the lamp board 7. A positioning notch 72 can be formed at the top of the lamp board 7. The protrusion 104 is symmetrically arranged along the center line of the battery holder 10 in the width direction. The protrusion 104 can be inserted into the positioning notch 72 to limit the position of the top of the lamp board 7.

[0096] For ease of installation, there is a gap between the lamp board 7 and the clamping plate 8 and the protrusion 104. The gap is about 0.2mm-0.5mm. In the embodiment of the present application, it can be 0.2mm. The distance that the stopping plane 811 protrudes from the clamping plate 8 is greater than the sum of the two gaps. In the embodiment of the present application, the distance that the stopping plane 811 protrudes from the clamping plate 8 is 0.5mm.

[0097] A limiting member 105 is provided at one end of the battery holder 10 located at the lamp board 7. A wire groove 1051 is provided on the limiting member 105 for the connecting wire of the lamp board 7 to pass through. An arc groove can be provided on the top of the limiting member 105 for the connecting wire to be embedded. The top wall of the limiting member 105 is formed with an expanded diameter portion 1052 for guiding the connecting wire into the arc groove. The expanded diameter portion 1052 can be a slope or an arc surface. In the embodiment of the present application, it can be a slope.

[0098] The multiple technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the multiple technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] In the embodiment of the present application, by adding a first support member to the battery bracket, the light board can be effectively positioned and supported, which greatly improves the convenience of installing the light board.

Claims

1. A power supply, comprising: Housing (1); A battery holder (10) fixedly connected to the housing (1); A battery cell (101) is at least partially fixed on the battery support (10); A light panel (7) is mounted on one end of the housing (1); A first support member (103) is connected to the battery support (1) and at least partially supports the light panel (7).

2. The power supply according to claim 1, wherein: The battery bracket is provided with clamping plates (8) at both ends of the lamp board (7).

3. The power supply according to claim 2, wherein: The clamping plate (8) is made of elastic material.

4. The power supply according to claim 2, wherein: A stop portion (81) is formed on the side of the clamping plate (8) away from the battery holder (10), and a stop plane (811) is formed on the side of the stop portion (81) facing the light board (7).

5. The power supply according to claim 4, wherein: A guide portion (812) is formed on the side of the stop portion (81) facing away from the lamp board (7).

6. The power supply according to claim 1, wherein: The top of the light board (7) is provided with a positioning notch (72), and the battery bracket (10) is located on the top of the light board (7) and is formed with a protrusion (104) that can be inserted into the positioning notch (72).

7. The power supply according to claim 1, wherein: The lamp panel (7) is provided with a connecting wire, and the battery bracket (10) is provided with a limiting member (105) for the connecting wire to pass through.

8. The power supply according to claim 7, wherein: The limiting member (105) is formed with an arc groove for the connecting wire to be embedded; the limiting member (105) is provided with an expanded diameter portion (1052) at the top of the arc groove, and the expanded diameter portion (1052) extends from the arc groove to the top wall of the limiting member (105).

9. The power supply according to claim 1, wherein: A button cap (122) is mounted on the housing (1), an operating button (71) is connected to the lamp panel (7), and after the power supply is assembled, the button cap (122) is in contact with the operating button (71); a reset sheet is provided on the side of the button cap (122) facing the operating button (71).

10. An electric tool comprising: A receiving portion (91); A motor, housed in the housing (91) and having an output shaft; A handle portion (92) has a first end connected to the accommodating portion (91) and a second end formed with a sole (93), wherein the sole (93) is configured to be connected to a power source according to any one of claims 1 to 9.

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