WO2021031422A1 - Direct-current appliance - Google Patents

Abstract

A direct-current appliance, related to the technical field of electronic product production and manufacturing. The direct-current appliance comprises: a PCB (1), a battery pack connector (2), and a first mounting structure. The PCB (1) and the battery pack connector (2) are connected via the first mounting structure, thus allowing the PCB (1) and the battery pack connector (2) to form an integrated structure. The direct current appliance, by connecting the PCB (1) and inserts (21) of the battery pack connector (2) via the first mounting structure, implements a fixed connection between the PCB (1) and the battery pack connector (2); compared with a scheme employing a lead connection, the PCB (1) and the battery pack connector (2) form the integrated structure, obviated is a lead used for connecting, the need to additionally provide lead fixing elements such as a lead engaging groove and a lead pressing plate due to the presence of the lead is obviated, thus simplifying the internal structure of the entire machine, saving production costs, and at the same time, increasing production efficiency and product pass rate during mass production of the entire machine.

Description

A direct current electrical appliance Technical field

The utility model relates to the technical field of electronic product manufacturing, in particular to a direct current electrical appliance.

Background technique

As shown in Figure 1, most of the DC electrical appliances on the market adopt a split structure of the PCB board 1'and the battery pack connector 2'. The PCB board 1'and the battery pack connector 2'pass between the two The wires 3'are connected to form an overall structure, and then the overall structure is installed on the DC electrical product. Therefore, the prior art has the following defects:

First, one end of the wire 3'needs to be electrically connected to the PCB board 1', and the other end is electrically connected to the insert of the battery pack connector 2'. Because the length of the wire 3'is relatively long, the wire 3'needs to be for safety reasons It is fixed by the wire clamping groove and the crimping plate to avoid the electronic components on the PCB board 1'or crimping when assembling the whole machine. The use of wire 3'connection and the need for an additional card slot, the structure is complex, the production cost is high, and the production efficiency is affected, and the product defect rate is increased to a certain extent during mass production.

Secondly, most of the existing DC electrical products generally have the following two fixing methods. One is to first open a positioning hole on the PCB board 1', and fix it by bolts through the set hole; the other is to fix on the DC electrical product A dedicated circuit board card slot is provided, and the circuit board card slot is used to fix the PCB board 1'. These two methods not only complicate the internal structure of the whole machine, but also increase the mold production cost and production cost.

Utility model content

The purpose of the utility model is to provide a direct current electrical appliance, which is used to reduce wire connections, simplify the internal structure of the whole machine, and reduce production costs and product defect rates.

To achieve this purpose, the utility model adopts the following technical solutions:

A direct current electrical appliance includes: a PCB board, a battery pack connector, and a first installation structure. The PCB board and the battery pack connector are connected through the first installation structure, so that the PCB board and the battery pack The battery pack connector forms an integrated structure.

Preferably, a jack is provided on the PCB board, and the insert piece of the battery pack connector penetrates the jack to form the first mounting structure.

Preferably, the plug-in piece includes a plug-in portion and a limiting portion, one end of the plug-in portion is connected to the limiting portion, the other end is penetrated in the socket, and the limiting portion abuts against The bottom of the PCB board.

Preferably, it further includes the above-mentioned DC appliance body, and the DC appliance body and the PCB board are connected by a second mounting structure.

Preferably, a accommodating groove is provided on the DC electrical appliance body, the accommodating groove is used for accommodating the battery pack connector, and a supporting portion is protrudingly provided on the DC electrical appliance body, and the supporting portion is used for carrying The PCB board.

Preferably, a first hook is protrudingly provided on the side of the DC electrical appliance body close to the battery pack connector, and the first hook abuts against the battery pack connector.

Preferably, a second hook is protrudingly provided on the side of the DC electrical appliance away from the first hook, the second hook abuts against the PCB board, and the first hook and the The second hook forms the second mounting structure.

Preferably, the DC electrical appliance further includes a cable, the cable is electrically connected to the PCB board, a wire clamping structure is provided on the DC electrical appliance body, and the wire clamping structure is used to limit the cable. Bit.

Preferably, the wire clamping structure includes a first limit seat, the first limit seat is arranged on the DC electrical appliance body, a limit through hole is opened on the first limit seat, and the cable Pass through the limiting through hole.

Preferably, the wire clamping structure includes a second limit seat, the second limit seat is arranged on the DC electrical appliance body, a limit slot is opened on the second limit seat, and the limit slot Used to accommodate the cable.

The beneficial effects of the utility model:

The DC electrical appliance provided by the utility model connects the PCB board and the inserts of the battery pack connector through the first mounting structure, and realizes the fixed connection between the PCB board and the battery pack connector, which is consistent with the prior art Compared with the wire connection method, the PCB board and the battery pack connector form an integrated structure, which saves the wires used for connection, and there is no need to set additional wire fixings such as card slot and crimping plate due to the presence of wires, which simplifies the whole The internal structure of the machine saves production costs, and at the same time improves production efficiency and product qualification rate when the whole machine is mass produced.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a prior art DC electrical appliance;

Figure 2 is a schematic diagram of the structure of the DC electric appliance of the present invention;

Figure 3 is a partial enlarged view of Figure 2 at Ⅰ;

Figure 4 is a schematic diagram of the structure of the DC electrical appliance body in the present utility model;

Fig. 5 is a structural schematic diagram of the battery pack connector and PCB board of the DC electrical appliance of the present invention installed on the DC electrical appliance body;

Figure 6 is a schematic diagram of the structure of the PCB board in the DC electrical appliance of the present invention;

Fig. 7 is a schematic diagram of the structure of the battery pack connector in the DC electric appliance of the present invention.

In the picture:

1', PCB board; 2', battery pack connector; 3', wire;

1. PCB board; 2. Battery pack connector; 3. DC electrical appliance body; 4. Cable;

11. Jack; 21. Insert; 211. Insert part; 212. Limit part;

31. Receiving groove; 32. Support part; 33. First hook; 34. Second hook; 35. First limit seat; 36. Second limit seat;

351, limit through hole; 361, limit slot.

detailed description

In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the utility model will be described in further detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are merely Part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present utility model.

In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected", "connected", and "fixed" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or a Integral; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood under specific circumstances.

In the present invention, unless otherwise clearly defined and defined, the first feature “on” or “under” the second feature may include direct contact between the first and second features, or include the first and second features. Features are not in direct contact but through other features between them. Moreover, "above", "above" and "above" the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature. The "below", "below" and "below" the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the first feature has a lower level than the second feature.

The technical solution of the present invention will be further explained below in conjunction with the drawings and specific implementations.

The existing DC electrical appliance adopts a split structure of the PCB board and the battery pack connector, and the PCB board and the battery pack connector are connected by wires, which have the problems of complicated internal structure and high manufacturing cost. In order to solve this problem, this embodiment provides a DC electrical appliance. As shown in Figure 2-3, the DC electrical appliance includes a battery pack and a DC electrical appliance body 3. The battery pack is mounted on the housing of the DC electrical appliance body 3 to The body 3 is powered. The battery pack connector 2 is inserted from below the PCB board 1 to form an integral structure. The PCB board 1 serves as a carrier for the electrical connection of various electronic components, and the battery pack connector 2 is used to connect the battery pack to provide electrical energy. The DC appliance provided in this embodiment uses a second installation between the DC appliance body 3 and the PCB board. The structure is connected to realize the fixing and installation of the battery pack; by setting the PCB board 1 and the battery pack connector 2 to be integrated, the structure of the wire connection is eliminated, the internal structure of the whole machine is simpler and the product production cost is saved; At the same time, the production efficiency is improved during the mass production of the whole machine, and the defect rate of the product is reduced.

Since the bottom surfaces of the PCB board 1 and the battery pack connector 2 are not in the same plane, the bottom surface of the PCB board 1 is higher than the bottom surface of the battery pack connector 2, in order to realize the PCB board 1 and the battery pack connector 2 The limit and installation of the DC electrical appliance body 3 is shown in Figure 4, the DC electrical appliance body 3 is provided with a receiving groove 31, and the containing groove 31 is used to receive the battery pack connector 2 and is projected on the DC electrical appliance body 3. There is a supporting portion 32, and the supporting portion 32 is used to carry the PCB board 1 to make up for the height difference between the bottom surface of the PCB board 1 and the bottom surface of the battery pack connector 2. In order to further realize the fixing of the PCB board 1 and the battery pack connector 2, as shown in Figs. 3-4, the above-mentioned second mounting structure includes a first hook 33 and a second hook 34, and the first hook 33 is protruding from On the side of the DC electrical appliance body 3 close to the battery pack connector 2, the first hook 33 abuts against the surface of the battery pack connector 2. The second hook 34 protrudes from the side of the DC electrical appliance body 3 away from the first hook 33, and the second hook 34 abuts against the PCB board 1. By arranging the first hook 33 and the second hook 34, the design of the circuit board slot inside the whole machine is eliminated, and the mold manufacturing cost is reduced.

Optionally, the number of the first hooks 33 and the number of the second hooks 34 are both two, and the two first hooks 33 are symmetrically arranged on both sides of the battery pack connector 2 and respectively abut against the battery pack The two ends of the connector 2 ensure the position stability of the battery pack connector 2; the two second hooks 34 are symmetrically arranged on both sides of the PCB board 1 and abut against the two ends of the PCB board 1, respectively, In order to ensure the position stability of the PCB board 1.

It is understandable that although the wires are removed between the PCB board 1 and the battery pack connector 2, in order to realize the communication connection between the PCB board 1 and other electronic components, as shown in Figure 3-4, the DC electrical appliance also includes The cable 4, which is electrically connected to the PCB board 1, is used to implement signal information transmission between the PCB board 1 and other electronic components. In order to avoid the contact of the cable 4 with electronic components or the occurrence of wire crimping when assembling the complete machine, a wire clamping structure is provided on the DC appliance body 3. The wire clamping structure is used to limit the cable 4 to reduce safety regulations. problem.

Specifically, as shown in FIGS. 3-4, the wire clamping structure includes a first limit seat 35 and a second limit seat 36. A limit through hole 351 is opened on the first limit seat 35, and the cable 4 is passed through The limiting through hole 351 defines a limiting slot 361 on the second limiting seat 36, and the limiting slot 361 is used to accommodate the cable 4. During installation, pass the free end of the cable 4 through the limiting through hole 351. The limiting through hole 351 serves to press down and gather the cable 4, and then place the cable 4 in the limiting slot 361. Played a role in limiting the cable 4 position. By separately setting the first limit seat 35 and the second limit seat 36 on the DC electrical appliance body 3, the wire clamping structure of the cable 4 is concentrated on the same material, avoiding the need to design because the cable 4 is too long Multiple card line structure problems. Only two parts, the first limit seat 35 and the second limit seat 36, need to be provided on the DC electrical appliance body 3 to meet the design requirements. The wire fixing structure such as the wire clamping groove and the crimping plate inside the whole machine is eliminated. To a certain extent, the production cost of the mold is reduced.

As shown in FIG. 5, the DC electrical appliance includes a PCB board 1, a battery pack connector 2 and a first mounting structure. The PCB board 1 and the insert 21 of the battery pack connector 2 are connected by the first mounting structure.

The DC electrical appliance provided in this embodiment connects the PCB board 1 and the battery pack connector 2 through the first mounting structure, and realizes the fixed connection between the PCB board 1 and the battery pack connector 2, which is consistent with the existing Compared with the method of wire connection, the PCB board 1 and the battery pack connector 2 form an integrated structure, which saves wires for connection, and does not require additional wire fixings such as a card slot and a crimping plate due to the presence of wires. The internal structure of the whole machine is simplified, the production cost is saved, and the production efficiency and product pass rate are improved when the whole machine is mass-produced.

Further, as shown in Figures 6-7, in order to realize that the PCB board 1 and the battery pack connector 2 are integrally formed, a jack 11 is provided on the PCB board 1. The jack 11 has a long strip hole structure, and the battery pack is inserted The insert piece 21 of the connector 2 passes through the socket 11 and is connected to it, and the socket 11 and the insert piece 21 cooperate with each other to form the above-mentioned first installation structure. During installation, after inserting the insert 21 into the socket 11, the inserting portion 211 of the insert 21 and the inner wall of the socket 11 can also be connected by welding, thereby realizing the PCB board 1 and the battery pack connector 2 The two are assembled by welding process, which is easy to operate, convenient and fast, and the connection and fixing effect is good. Of course, in other embodiments, the first mounting structure can also be other structures, such as a snap structure, specifically a hook on the battery pack connector, which is inserted into the hole on the PCB during installation. For fixing, the first mounting structure can also be a direct welding method. Here, it is not limited, and it only needs to satisfy that the PCB board 1 and the battery pack connector 2 are integrally formed.

It can be understood that the number of jacks 11 and the number of inserts 21 are the same, and the number of jacks 11 are arranged at intervals in parallel, and the inserts 21 are arranged at intervals in parallel, and each insert 21 is arranged in one correspondingly. Socket 11. Preferably, in this embodiment, the number of jacks 11 and the number of inserts 21 are both three, and the specific number is not limited, and can be adjusted according to actual production needs.

Specifically, in order to limit the insertion position of the socket 11 and the insertion piece 21, as shown in FIG. 7, the insertion piece 21 includes an insertion portion 211 and a limiting portion 212, and the insertion portion 211 is located above the limiting portion 212 , The shape of the plug-in portion 211 and the socket 11 are matched, one end of the plug-in portion 211 is connected to the limiting portion 212, and the other end can pass through the socket 11. The inserting portion 211 is protrudingly provided on the limiting portion 212, and along the extending direction of the socket 11, the length of the limiting portion 212 is greater than the length of the inserting portion 211. After the inserting portion 211 is inserted into the socket 11, the limiting The portion 212 can abut against the bottom of the PCB board 1, and the limiting portion 212 plays a role of limiting. It can be understood that, in order to further save production costs, it is preferable that the plug-in portion 211 and the limiting portion 212 be an integral structure.

In the description of this article, it should be understood that the terms "upper", "lower", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for ease of description and simplified operations. It does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish them in description and have no special meaning.

In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific feature, structure, material or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or In the example. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example.

In addition, the above are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made to those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present utility model. The scope of the present invention is determined by the scope of the appended claims.

Claims (10)

A DC electrical appliance, which is characterized by comprising: a PCB board (1), a battery pack connector (2) and a first mounting structure, the PCB board (1) and the battery pack connector (2) They are connected through a first mounting structure, so that the PCB board (1) and the battery pack connector (2) form an integrated structure. The DC electrical appliance according to claim 1, characterized in that a jack (11) is opened on the PCB board (1), and the insert (21) of the battery pack connector (2) passes through The first mounting structure is formed in the socket (11). The DC electrical appliance according to claim 2, characterized in that the insert (21) comprises an insert part (211) and a limiting part (212), and one end of the insert part (211) is connected to the The other end of the limiting portion (212) penetrates through the socket (11), and the limiting portion (212) abuts against the bottom of the PCB board (1). The DC electrical appliance according to claim 3, characterized in that, the DC electrical appliance further comprises a DC electrical appliance body (3), and the DC electrical appliance body (3) and the PCB board are connected through a second mounting structure. The DC electrical appliance according to claim 4, characterized in that a receiving groove (31) is opened on the DC electrical appliance body (3), and the receiving groove (31) is used for receiving the battery pack connector ( 2) A support portion (32) is protrudingly provided on the DC electrical appliance body (3), and the support portion (32) is used to carry the PCB board (1). The DC electrical appliance according to claim 4, characterized in that a first hook (33) is protrudingly provided on the side of the DC electrical appliance body (3) close to the battery pack connector (2), so The first hook (33) abuts against the battery pack connector (2). The DC electrical appliance according to claim 6, characterized in that a second hook (34) is protrudingly provided on the side of the DC electrical appliance body (3) away from the first hook (33), and The second hook (34) abuts against the PCB board (1), and the first hook (33) and the second hook (34) form the second mounting structure. The DC electrical appliance according to claim 4, characterized in that the DC electrical appliance further comprises a cable (4), the cable (4) is electrically connected to the PCB board (1), and the DC electrical appliance body (3) A wire-clamping structure is provided on it, and the wire-clamping structure is used for limiting the position of the cable (4). The DC electrical appliance according to claim 8, characterized in that the wire clamping structure comprises a first limit seat (35), and the first limit seat (35) is arranged on the DC electrical appliance body (3) A limit through hole (351) is opened on the first limit seat (35), and the cable (4) is passed through the limit through hole (351). The DC electrical appliance according to claim 9, characterized in that, the wire clamping structure comprises a second limit seat (36), and the second limit seat (36) is arranged on the DC electrical appliance body (3) A limit slot (361) is opened on the second limit seat (36), and the limit slot (361) is used for accommodating the cable (4).

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