Electric equipment

Abstract

The utility model discloses electric equipment which comprises a battery cell and a circuit board. The circuit board is connected to the electric equipment and is provided with a first electric connection assembly, and the battery cell is detachably and electrically connected with the first electric connection assembly. Compared with a traditional battery cell mounting mode, the battery cell mounting structure has the beneficial effects that the battery cell is detachably mounted in the shell of the electric equipment, so that power supply to the electric equipment is realized under the condition that the size of the electric equipment is not increased. And moreover, when the electric quantity of the battery cell is used up or a fault occurs, the battery cell can be detached through the detachable structure of the battery cell, so that the normal use of the electric equipment is ensured by replacing the battery cell with a new battery cell.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to an electrical equipment. Background Art

[0002] There are two main ways to install batteries in existing power tools when they are in use. The first is to use a built-in integrated battery to achieve wireless power supply; however, since the built-in battery may be damaged during various operations, the entire power tool cannot be used anymore, reducing the life of the power tool. In addition, when the built-in battery is at a high level of loss, accidents are prone to occur, posing a danger to the user. The second is to place the battery pack externally, which mainly includes a battery cell, a circuit board, a housing, and electrical connectors; the power tool is correspondingly provided with a locking mechanism and an electrical connector. When the battery pack is pluggably electrically connected to the power tool, the size and weight of the power tool will increase, which is not conducive to user operation. Based on this, there is an urgent need to improve the existing power tool structure. Utility Model Content

[0003] One of the purposes of the present application is to provide an electrical device that can solve at least one of the defects in the above-mentioned background technology.

[0004] In order to achieve at least one of the above-mentioned purposes, the technical solution adopted in the present application is: an electrical device, comprising a battery cell and a circuit board; the circuit board is connected to the electrical device and a first electrical connection component is provided on the circuit board, and the battery cell is detachably electrically connected to the first electrical connection component.

[0005] Preferably, a second electrical connection component is provided on the battery cell, and the positive and negative electrodes of the battery cell are electrically connected to the circuit board by plugging the second electrical connection component into the first electrical connection component.

[0006] Preferably, the first electrical connection assembly includes at least one pair of electrical connectors, and the second electrical connection assembly is provided with plug-in slots at the positive and negative poles of the battery cell; the positive and negative poles of the battery cell are electrically connected to the circuit board by plugging the electrical connectors into the corresponding plug-in slots.

[0007] Preferably, the second electrical connection assembly includes two second electrical connectors respectively arranged at the positive and negative electrodes of the battery cell, and the plug-in slot is arranged at the second electrical connector.

[0008] Preferably, the second electrical connector comprises an inserting portion, and curling sections curled toward the center are arranged on both sides of the inserting portion, and the curling sections cooperate with the non-curling area of ​​the inserting portion to form the inserting slot.

[0009] Preferably, the second electrical connector is welded to the electrode of the battery cell, and then the second electrical connection assembly is installed on the battery cell.

[0010] Preferably, the second electrical connection assembly further includes an insulating member, and the two second electrical connection members are connected via the insulating member so that a power connection cavity is formed between the two second electrical connection members; the second electrical connection assembly is engaged with the positive and negative electrodes of the battery cell via the power connection cavity so as to be installed on the battery cell.

[0011] Preferably, the second electrical connector further comprises an electrical connection portion, the electrical connection portion is integrally connected to the plug-in portion or connected by welding, and the electrical connection portion is suitable for being connected to an electrode of the battery cell.

[0012] Preferably, a plug-in slot is formed on the first electrical connection assembly, and the battery cell is integrally plugged into the plug-in slot, so that the positive and negative electrodes of the battery cell are electrically connected to the circuit board through two ends of the plug-in slot respectively.

[0013] Preferably, the circuit board is plate-shaped; the first electrical connection assembly includes a pair of first electrical connectors spaced apart, the first electrical connectors are sheet-shaped and perpendicular to the circuit board, so that the first electrical connectors cooperate to form the plug-in slots, and the positive and negative poles of the battery cell are suitable for being electrically connected to the circuit board through the corresponding first electrical connectors.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] Compared with the traditional way of installing battery cells, the present application realizes power supply to the electrical equipment without increasing the volume of the electrical equipment by detachably installing the battery cells inside the housing of the electrical equipment. Moreover, when the battery cell runs out of power and fails, the battery cell can be removed through the detachable structure of the battery cell, and then the normal use of the electrical equipment can be ensured by replacing the new battery cell. In addition, for electrical equipment with replaceable batteries, the circuit board of the present application is integrated into the electrical equipment, which can save the amount of circuit board compared to the way of integrating the circuit board into the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the exploded state of the electric equipment in the utility model for installing the battery core.

[0017] Figure 2 It is a schematic diagram of the partial structure inside the shell of the electrical equipment in the utility model.

[0018] Figure 3 It is a partial structural schematic diagram of the utility model in which the battery cell is directly plugged into the battery compartment.

[0019] Figure 4 It is a structural schematic diagram of one embodiment of the second electrical connection assembly in the present invention installed on a battery cell.

[0020] Figure 5 It is a bottom view structural schematic diagram of the second electrical connector in the utility model.

[0021] Figure 6 The utility model is a battery cell Figure 4 The second electrical connection assembly shown is installed in a partial structural schematic diagram of the battery compartment.

[0022] Figure 7 This is a structural schematic diagram of another embodiment of the second electrical connection assembly in the present invention installed on a battery cell.

[0023] Figure 8 The utility model is a battery cell Figure 7 The second electrical connection assembly shown is installed in a partial structural schematic diagram of the battery compartment.

[0024] In the figure: shell 1, sealing cover 11, battery compartment 100, battery cell 2, circuit board 3, first electrical connector 31, first plug-in slot 310, second electrical connector 41, second plug-in slot 410, power connection part 411, plug-in part 412, curling section 4121, insulating part 42. DETAILED DESCRIPTION

[0025] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating 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 cannot be understood as limiting the specific scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0029] One of the preferred embodiments of the present application is as follows: Figure 1 and Figure 2 As shown, an electric device includes at least one battery cell 2 and a circuit board 3. The circuit board 3 is built-in, fixedly installed in the electric device and connected, and the circuit board 3 can drive the entire electric device by receiving power from the battery cell 2. The battery cell 2 can be installed on the circuit board 3 and detachably electrically connected, so that when the electric device is in use, the battery cell 2 can directly supply power to the circuit board 3; and when the battery cell 2 is exhausted or fails, the battery cell 2 can be directly removed from the circuit board 3 and replaced with a new battery cell 2.

[0030] It should be known that by designing the battery cell 2 to be detachable, when the battery cell 2 runs out of power or fails, the battery cell 2 can be quickly removed from the circuit board 3, and then the electrical equipment can be put back into operation by replacing a new battery cell 2. Compared with the traditional integrated battery installation structure, the present application can effectively ensure the safety of the use of the electrical equipment. In addition, by directly electrically connecting the battery cell 2 to the circuit board 3, the present application can reduce energy loss while ensuring that the circuit board 3 can be reused multiple times, thereby effectively reducing costs. That is, when traditional electrical equipment uses a detachable battery pack, the battery pack generally includes a battery cell 2 and a circuit board 3, that is, each battery pack corresponds to a circuit board 3, so that the circuit board 3 in each battery pack cannot be reused by multiple battery cells 2; and then when a battery cell 2 in the battery pack fails, the entire battery pack needs to be replaced, and only the battery cell 2 cannot be replaced.

[0031] It should also be known that the number of battery cells 2 installed on the circuit board 3 can be one or more. As for the connection method between the multiple battery cells 2, depending on the usage of the electrical equipment, the multiple battery cells 2 can be connected in series to increase the output voltage, or they can be connected in parallel to increase the battery life of the electrical equipment. As for the installation between the multiple battery cells 2 and the circuit board 3, each battery cell 2 can be individually detachably electrically connected to the circuit board 3, or the multiple battery cells 2 can first be connected in series or in parallel to form a battery cell group, and then the battery cell group is detachably electrically connected to the circuit board 3. The above-mentioned connection method of the multiple battery cells 2 is a well-known technology for those skilled in the art; in order to facilitate the understanding of the subsequent content, the subsequent content will be explained by taking the installation of a battery cell 2 and the circuit board 3 as an example.

[0032] In this embodiment, there are many types of electrical equipment, and common electrical equipment includes power tools, lighting tools, and electric toys. For ease of understanding, the following description will be given using power tools such as electric drills and electric saws as examples. Figure 1 and 2 As shown, a battery compartment 100 that can be opened and closed is provided in the housing 1 of the power tool, and the circuit board 3 and the battery cell 2 can be installed in the battery compartment 100. In order to ensure the working stability of the power tool, the battery compartment 100 can be set at the weak position of the power tool, and then after the battery cell 2 is installed, the overall mass distribution of the power tool meets the stability requirements. In a specific example, Figure 1 As shown, the battery compartment 100 can be arranged in the handle portion at the rear of the shell 1, so that the battery cell 2 can be installed in the battery compartment 100 to move the overall center of gravity of the power tool backward; then the port of the battery compartment 100 is closed by the sealing cover 11, and then the battery cell 2 is stably installed in the battery compartment 100 by the sealing cover 11 and the outer side of the battery cell 2.

[0033] It is understandable that the battery compartment 100 is disposed in the housing 1, so that the volume of the power tool will not be affected when the battery cell 2 is installed, that is, the installation of the battery cell 2 will not affect the operation of the power tool. In addition, the installation position of the battery cell 2 is designed according to the overall mass distribution of the power tool, which can effectively improve the stability of the power tool.

[0034] In this embodiment, Figure 2 and Figure 3 As shown, the circuit board 3 can be installed in the battery compartment 100 by fasteners, or it can be installed in the battery compartment 100 by snap-on connection. The circuit board 3 is provided with a working circuit of the electrical equipment. After being installed on the circuit board 3, the battery cell 2 can be directly electrically connected to the working circuit of the electrical equipment, thereby ensuring the current output stability of the battery cell 2 and effectively reducing energy loss. At the same time, a protection circuit is also provided on the circuit board 3, and the protection circuit can prevent the battery cell 2 from overcharging, over-discharging, and short-circuiting. The protection circuit can be used multiple times, and the protection circuit can be connected to the working circuit of the electrical equipment through a cable to realize the state detection and protection function of the battery cell 2.

[0035] It should be known that there are many ways of detachable electrical connection between the battery cell 2 and the circuit board 3, such as snap-in, plug-in, and elastic abutment. For ease of understanding, in this application, plug-in is preferably used for detachable electrical connection between the battery cell 2 and the circuit board 3. There are many specific plug-in methods between the battery cell 2 and the circuit board 3. For ease of understanding, two specific embodiments are used to illustrate below; of course, the specific plug-in methods between the battery cell 2 and the circuit board 3 include but are not limited to the following two embodiments.

[0036] Embodiment 1:

[0037] like Figure 2 and Figure 3 As shown, a first plug-in slot 310 is provided on the circuit board 3, and the battery cell 2 is integrally plugged into the first plug-in slot 310, and then the positive and negative electrodes of the battery cell 2 are electrically connected to the circuit board 3 through the two ends of the first plug-in slot 310 respectively.

[0038] It can be understood that the two ends of the first plug-in slot 310 are respectively electrically connected to the positive and negative poles of the circuit on the circuit board 3, so that when the battery cell 2 is inserted into the first plug-in slot 310 as a whole, the two ends of the battery cell 2 are electrically connected to the circuit board 3 by electrically connecting to the two ends of the first plug-in slot 310.

[0039] In this embodiment, there are many specific ways to form the first plugging slot 310. The first plugging slot 310 can be formed by the circuit board 3 itself through an inner concave or outer convex manner, or a corresponding power connection component can be installed on the circuit board 3 to form the required first plugging slot 310 through the power connection component. Since the electrodes connected to the two ends of the first plugging slot 310 are different, in order to conveniently realize the above functions, the specific way to form the first plugging slot 310 is preferably to form it in the power connection component. One specific example, such as Figure 2 and Figure 3 As shown, a first electrical connection component for electrical connection is protruded from the circuit board 3, and a first plug-in slot 310 is formed in the first electrical connection component.

[0040] Specifically, there are many specific structures of the first plug slot 310 formed by the first electrical connection assembly. For easy understanding, two specific examples are provided below for illustration. Of course, the specific structure of the first plug slot 310 includes but is not limited to the following two examples.

[0041] Example 1: Figure 2 and Figure 3As shown, the circuit board 3 is plate-shaped; the first electrical connection assembly includes a pair of first electrical connectors 31 spaced apart, the first electrical connectors 31 are sheet-shaped and perpendicular to the circuit board 3, so that the two first electrical connectors 31 cooperate to form a first plug-in slot 310. Therefore, when the battery cell 2 is installed, the positive and negative electrodes of the battery cell 2 can be electrically connected to the circuit board 3 through the corresponding first electrical connectors 31.

[0042] Example 2: The circuit board 3 is plate-shaped, and the first electrical connection assembly includes a pair of first electrical connectors 31 and an insulating sleeve that are spaced apart. The first electrical connector 31 can be integrally injection molded with the insulating sleeve. The first electrical connector 31 is sheet-shaped and perpendicular to the circuit board 3, so that when the first electrical connection assembly is installed on the circuit board 3, a rectangular first plug-in slot 310 can be formed between the first electrical connector 31 and the insulating sleeve, and the width of the first plug-in slot 310 is adapted to the width of the battery cell 2. Therefore, when the battery cell 2 is installed, the positive and negative electrodes of the battery cell 2 can be electrically connected to the circuit board 3 through the corresponding first electrical connectors 31, respectively.

[0043] It can be understood that both of the above examples can meet the needs of this embodiment. Compared with the first plug-in slot 310 formed in Example 1, the first plug-in slot 310 formed in Example 2 can limit the battery cell 2 in the width direction. However, the sealing cover 11 used to seal the opening of the battery compartment 100 can limit the battery cell 2 in the width direction. Therefore, in order to reduce production costs and processing difficulties, the specific structure of the first plug-in slot 310 in this embodiment preferably adopts the above example 1. At the same time, only two first electrical connectors 31 are provided, which can also reduce the circuit influence of the first electrical connection assembly on the circuit board 3.

[0044] It should be known that the specific structure of the first electrical connector 31 is well known to those skilled in the art. Generally speaking, the first electrical connector 31 is a conductive metal member, such as an elastic metal sheet, etc., and in order to ensure the service life of the first electrical connector 31, an anti-oxidation coating may be applied on the first electrical connector 31. The first electrical connector 31 is generally mounted on the circuit board 3 by soldering.

[0045] It should also be known that the structures of the two first electrical connectors 31 may be consistent or inconsistent; for inconsistent first electrical connectors 31 , it is only necessary to form the first plug-in slot 310 .

[0046] Embodiment 2:

[0047] Compared with the first embodiment, the second embodiment is different in that Figures 4 to 8 As shown, a first electrical connection component is provided on the circuit board 3, and a second electrical connection component is provided on the battery cell 2; the positive and negative electrodes of the battery cell 2 are electrically connected to the circuit board 3 by plugging the second electrical connection component into the first electrical connection component.

[0048] It can be understood that installing a second electrical connection assembly on the battery cell 2 to achieve plugging with the first electrical connection assembly can effectively reduce the wear caused by the battery cell 2 in the above-mentioned embodiment 1 directly plugging with the first plugging slot 310 through the electrode. Then, there are two main ways of plugging the second electrical connection assembly with the first electrical connection assembly; the first is that the first plugging slot 310 shown in the above-mentioned embodiment 1 is formed on the first electrical connection assembly, and then the battery cell 2 is plugged into the first plugging slot 310 through the second electrical connection assembly; the second is that the first electrical connection assembly and the second electrical connection assembly are plugged through multiple plugging slots. Compared with the first plugging method, the second plugging method is more stable in structure, so the second plugging method is preferably used in this embodiment. There are many specific implementation methods for the second plugging method. For the convenience of understanding, it can be explained through three specific examples below.

[0049] Example 1: Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, the first electrical connection assembly includes at least one pair of electrical connectors, and the second electrical connection assembly is provided with second plug-in slots 410 at the positive and negative poles of the battery cell 2; the positive and negative poles of the battery cell 2 are electrically connected to the circuit board 3 by plugging the electrical connectors into the corresponding plug-in slots.

[0050] It should be known that among the electrical connectors included in the first electrical connection assembly, two electrical connectors are used to connect the positive and negative poles of the working circuit of the electrical equipment, which can be defined as the first electrical connectors 31. Therefore, the second plug-in slot 410 only needs to be plugged into the two first electrical connectors 31 to achieve the electrical connection between the battery cell 2 and the circuit board 3. If there are other electrical connectors in the first electrical connection assembly, they can be plugged into the plug-in slots set at other positions on the second electrical connection assembly to improve the installation stability of the battery cell 2.

[0051] Example 2: At least one pair of plug-in slots is provided on the first electrical connection assembly, and the second electrical connection assembly includes two electrical connectors provided at the positive and negative poles of the battery cell 2; the positive and negative poles of the battery cell 2 are electrically connected to the circuit board 3 by plugging the electrical connectors into the corresponding plug-in slots.

[0052] It should be known that among the plug-in slots included in the first electrical connection assembly, two plug-in slots are used to connect the positive and negative poles of the working circuit of the electrical equipment, which can be defined as the second plug-in slots 410. It is only necessary to plug the two electrical connectors into the two second plug-in slots 410 to realize the electrical connection between the battery cell 2 and the circuit board 3. If the first electrical connection assembly has other plug-in slots, they can be plugged into the electrical connectors set at other positions on the second electrical connection assembly to improve the installation stability of the battery cell 2.

[0053] Example three: At least one plug-in slot and at least one electrical connector are provided on the first electrical connection assembly, and the second electrical connection assembly is provided with an electrical connector and a plug-in slot at the positive and negative poles of the battery cell 2 respectively; the positive and negative poles of the battery cell 2 are electrically connected to the circuit board 3 by plugging the electrical connector into the corresponding plug-in slot.

[0054] It should be known that among the plug slots and electrical connectors included in the first electrical connection assembly, one plug slot and one electrical connector are respectively connected to the positive and negative poles of the working circuit of the electrical equipment. Then the electrical connector and the plug slots provided at the positive and negative poles of the battery cell 2 on the second electrical connection assembly are respectively plugged with the plug slots and electrical connectors on the first electrical connection assembly to realize the electrical connection between the battery cell 2 and the circuit board 3. For the first electrical connection assembly also including other plug slots and electrical connectors, they can be plugged with the electrical connectors and plug slots provided at other positions on the second electrical connection assembly to improve the installation stability of the battery cell 2.

[0055] Specifically, Example 1 and Example 2 are substantially the same, so Example 1 is taken as an example. Figures 4 to 6 As shown, the second electrical connection assembly includes two second electrical connectors 41 respectively arranged at the positive and negative poles of the battery cell 2, and the second plug-in slot 410 is arranged on the second electrical connector 41. The structures of the two second electrical connectors 41 can be consistent or inconsistent; for the inconsistent second electrical connectors 41, it is only necessary to meet the requirement of being able to be plugged with the first electrical connector 31. For example three, the second electrical connection assembly includes second electrical connectors 41 respectively arranged at the positive and negative poles of the battery cell 2, and the first electrical connection assembly includes a pair of first electrical connectors 31 corresponding to the second electrical connectors 41. A second plug-in slot 410 is arranged on one of the first electrical connectors 31 and one of the second electrical connectors 41. That is, the structures of the two first electrical connectors 31 are inconsistent, and the structures of the two second electrical connectors 41 are also inconsistent. In a specific example, the structures of one of the first electrical connectors 31 and one of the second electrical connectors 41 are consistent and sheet-shaped, and the structures of the remaining one of the first electrical connectors 31 and one of the second electrical connectors 41 are consistent and are provided with a second plug-in slot 410.

[0056] It can be understood that the above three examples can all meet the needs of this embodiment; compared with Example 1 and Example 2, the design of Example 3 is slightly more complicated; therefore, in this embodiment, the above-mentioned Example 1 and Example 2 are preferably used for the second plug-in method; and Example 1 and Example 2 are essentially the same, so the subsequent content will be explained using Example 1 as an example.

[0057] In this embodiment, there are many specific structures of the second plug slot 410. For ease of understanding, the following will be described using one specific structure. Figure 4 and Figure 5As shown, the second electrical connector 41 includes an inserting portion 412 , and curling sections 4121 curled toward the center are provided on both sides of the inserting portion 412 . The curling sections 4121 cooperate with the non-curling area of ​​the inserting portion 412 to form a second inserting slot 410 .

[0058] It is understandable that the width X of the second plug-in slot 410 may be the distance from the end of the curling section 4121 to the non-curling area on the plug-in portion 412. The value of the width X is slightly smaller than the thickness of the first electrical connector 31, so that when the second plug-in slot 410 is plugged with the first electrical connector 31, the electrical connection stability between the first electrical connector 31 and the second electrical connector 41 can be ensured by the elastic deformation of the curling section 4121. That is, the curling section 4121 can not only form the second plug-in slot 410, but also press the second electrical connector 41 against the first electrical connector 31 by elastic deformation.

[0059] It should be known that, for the forming of the second plug-in slot 410 , both ends of the plug-in portion 412 may be curled by stamping to obtain the corresponding second plug-in slot 410 .

[0060] In this embodiment, the contact area between the second electrical connector 41 and the electrode of the battery cell 2 is 20% to 80% of the entire electrode area.

[0061] It should be known that in order to ensure the power supply stability between the battery cell 2 and the circuit board 3, there needs to be sufficient contact area between the second electrical connector 41 and the electrode of the battery cell 2. Generally speaking, the contact area between the second electrical connector 41 and the electrode of the battery cell 2 is at least 20% of the entire electrode area. Considering the subsequent connection between the second electrical connector 41 and the electrode of the battery cell 2, such as welding the second electrical connector 41 and the battery cell 2, a certain welding space needs to be left between the second electrical connector 41 and the electrode of the battery cell 2, so the contact area between the second electrical connector 41 and the electrode of the battery cell 2 cannot be greater than 80% of the entire electrode area. More preferably, the contact area between the power connection part 411 and the electrode of the battery cell 2 is 30% to 70% of the entire electrode area.

[0062] In this embodiment, there are multiple connection modes between the second electrical connector 41 and the battery cell 2, including but not limited to the following two specific connection modes.

[0063] Connection method 1: Figure 4 and Figure 6 As shown, the second electrical connector 41 is welded to the electrode of the battery cell 2 , and then the second electrical connection assembly is installed on the battery cell 2 .

[0064] Connection method 2: Figure 7 and Figure 8As shown, the second electrical connection assembly also includes an insulating member 42, and the two second electrical connectors 41 are connected by the insulating member 42, so that a connection cavity is formed between the two second electrical connectors 41. The second electrical connection assembly is engaged with the positive and negative electrodes of the battery cell 2 through the connection cavity to be installed on the battery cell 2.

[0065] It is understandable that, for the above-mentioned connection method 2, the insulating member 42 and the two second electrical connectors 41 can be integrally injection molded to obtain a second electrical connection assembly. The two second electrical connectors 41 are structurally connected through the insulating member 42, but are not electrically connected to each other, thereby avoiding a short circuit between the two second electrical connectors 41.

[0066] It can also be understood that, for the first connection mode, if the second electrical connector 41 is directly welded to the electrode of the battery cell 2 through the plug-in portion 412, it may affect the structure of the second plug-in slot 410 formed by the plug-in portion 412, thereby making it difficult to plug the second plug-in slot 410 with the first electrical connector 31. For the second connection mode, if the second electrical connector 41 is directly formed into a power connection cavity through the plug-in portion 412, the height of the plug-in portion 412 is relatively long, and it is necessary to simultaneously meet the requirements of the integral molding connection of the insulating member 42 and the abutment and engagement of the electrodes of the battery cell 2; the processing of the relatively long plug-in portion 412 is relatively difficult.

[0067] In this embodiment, in order to facilitate the connection between the second electrical connector 41 and the battery cell 2, as shown in FIG. Figures 4 to 8 As shown, the second electrical connector 41 also includes a power connection portion 411, which is integrally connected to the plug-in portion 412 or connected by welding. The second electrical connector 41 can be connected to the electrode of the battery cell 2 through the power connection portion 411; that is, the second electrical connector 41 can be welded or abutted against the electrode of the battery cell 2 through the power connection portion 411.

[0068] It is understandable that the second electrical connector 41 is a conductive metal part, such as a nickel sheet; if the power connection part 411 and the plug-in part 412 are connected as one piece, the required second electrical connector 41 can be obtained by stamping and bending the metal sheet of the T-shaped structure at the extended positions on both sides. For the separate connection of the power connection part 411 and the plug-in part 412, the required second electrical connector 41 can be obtained by simply connecting the power connection part 411 and the plug-in part 412 obtained by separate processing by soldering.

[0069] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An electrical device, characterized in that: include: Circuit boards; The circuit board is connected to the electrical equipment and the circuit board is connected to a first electrical connection component; as well as At least one battery cell; the battery cell is detachably electrically connected to the first electrical connection assembly.

2. The electrical equipment according to claim 1, characterized in that: The battery cell is provided with a second electrical connection assembly for electrical connection; the positive and negative electrodes of the battery cell are electrically connected to the circuit board by plugging the second electrical connection assembly into the first electrical connection assembly.

3. The electrical equipment according to claim 2, characterized in that: The first electrical connection assembly includes at least one pair of electrical connectors, and the second electrical connection assembly is provided with plug-in slots at the positive and negative poles of the battery cell; the positive and negative poles of the battery cell are electrically connected to the circuit board by plugging the electrical connectors into the corresponding plug-in slots.

4. The electrical equipment according to claim 3, characterized in that: The second electrical connection assembly includes two second electrical connectors respectively arranged at the positive and negative electrodes of the battery cell, and the plug-in slot is arranged at the second electrical connector.

5. The electrical equipment according to claim 4, characterized in that: The second electrical connector includes an inserting portion, and curling sections curled toward the center are arranged on both sides of the inserting portion. The curling sections cooperate with the non-curling area of ​​the inserting portion to form the inserting slot.

6. The electrical equipment according to claim 5, characterized in that: The second electrical connector is welded to the electrode of the battery cell, and then the second electrical connection assembly is installed on the battery cell.

7. The electrical equipment according to claim 5, characterized in that: The second electrical connection assembly also includes an insulating member, and the two second electrical connections are connected by the insulating member to form a connection cavity between the two second electrical connections; the second electrical connection assembly is engaged with the positive and negative electrodes of the battery cell through the connection cavity to be installed on the battery cell.

8. The electrical equipment according to claim 5, characterized in that: The second electrical connector also includes an electrical connection portion, which is connected to the plug-in portion in one piece or by welding, and is suitable for being connected to the electrode of the battery cell.

9. The electrical equipment according to claim 1, characterized in that: A plug-in slot is formed on the first electrical connection assembly, and the battery cell is integrally plugged into the plug-in slot, so that the positive and negative electrodes of the battery cell are electrically connected to the circuit board through the two ends of the plug-in slot respectively.

10. The electrical equipment according to claim 9, characterized in that: The circuit board is in the shape of a plate; the first electrical connection assembly includes a pair of first electrical connectors arranged at intervals, the first electrical connectors are in the shape of sheets and are perpendicular to the circuit board, so that the first electrical connectors cooperate to form the plug-in slots, and the positive and negative poles of the battery cell are suitable for being electrically connected to the circuit board through the corresponding first electrical connectors.

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