CN211736721U - Battery anode elastic sheet and automobile key with same - Google Patents

Abstract

The utility model discloses a anodal shell fragment of battery for connecting power and circuit board, include: a support plate extending in a first direction; the elastic arms are provided with a first end and a second end, the first end is used for being in contact with the positive electrode of the power supply, and the second end is fixed with the supporting plate; the welding plate is fixed with the backup pad, and extends along first direction, is provided with two at least through-holes on the welding plate, and wherein the portion of holding that backup pad, elastic arm and welding plate enclose is used for holding the partly of power, and the welding plate is suitable for and is absorb by surface mounting equipment. The utility model provides a anodal shell fragment of battery simple structure, processing is convenient, has reduced manufacturing cost, has improved production efficiency, has practiced thrift the occupation space of anodal shell fragment of battery in the casing, can be applied to the less design of casing space. The utility model also provides a car key of having this anodal shell fragment of battery.

Description

Battery anode elastic sheet and automobile key with same

Technical Field

The utility model relates to an electronic equipment spare part field, in particular to anodal shell fragment of battery and have its car key.

Background

With the development of the automobile field, the automobile intelligent key gradually replaces the traditional mechanical key due to convenience and practicability to become the mainstream of the automobile key. The automobile intelligent key shell generally comprises a circuit board, a button cell used as a power supply, and a positive elastic sheet and a negative elastic sheet which are used for connecting the circuit board and the power supply.

The connection mode of the battery anode elastic sheet and the circuit board of the current automobile intelligent key mainly comprises an assembling type and a welding type. The assembled type generally needs a specific mechanical structure to be arranged in the shell, a specific step is needed to arrange the elastic sheet in the shell when the key is assembled, and in order to prevent the oxidation of the contact area of the battery anode elastic sheet and the circuit board, the conductive area on the circuit board needs to be plated with gold, so that the electrical performance is improved, the manufacturing process is complex, and the cost is high. The existing welding type elastic sheet is complex in structure, complex in process and high in manufacturing cost, the elastic sheet needs to occupy more space after being welded on a circuit board, the design with higher space requirements is difficult to apply, and the manufactured intelligent key is inconvenient to carry. Therefore, a battery anode elastic sheet which does not need gold plating, has simple structure, convenient processing and low manufacturing cost and occupies small space after welding and assembling is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve current welding formula shell fragment structure complicacy, the technology is numerous and diverse, and manufacturing cost is high, and the shell fragment welding on the circuit board, need occupy more space with the power equipment after, to the difficult problem that is suitable for of the higher design of some space requirements. The utility model provides a anodal shell fragment of battery and have its car key, anodal shell fragment simple structure of battery, processing is convenient, has reduced manufacturing cost, has practiced thrift the occupation space of anodal shell fragment of battery in the casing, can be applied to the less design of casing space, need not the gilding with the contact of the printed circuit board that the shell fragment cooperation was used, and the car key of making is small, portable.

In order to solve the technical problem, an embodiment of the utility model discloses a anodal shell fragment of battery for connecting power and circuit board, include: a support plate extending in a first direction; the elastic arms are provided with a first end and a second end, the first end is used for being in contact with the positive electrode of the power supply, and the second end is fixed with the supporting plate; the welding plate is fixed with the backup pad, and extends along first direction, is provided with two at least through-holes on the welding plate, and wherein the portion of holding that backup pad, elastic arm and welding plate enclose is used for holding the partly of power, and the welding plate is suitable for and is absorb by surface mounting equipment.

By adopting the technical scheme, the battery anode elastic sheet is simple in structure and convenient to process, reduces the manufacturing cost, improves the production efficiency, saves the occupied space of the battery anode elastic sheet in the shell, and can be applied to the design with smaller shell space.

Optionally, the head of the first end of the elastic arm is provided with a bent section.

Optionally, the number of vias is two.

Optionally, the connecting area of the support plate and the welding plate is provided with a stamping rib position.

Optionally, the welding plate is provided with a first welding area, a middle area and a second welding area in sequence along the first direction, the middle area is provided with a reinforcing part, and the reinforcing part extends along the second direction.

Optionally, the vias are symmetrically disposed on the first and second lands.

Optionally, the number of the stamping rib positions is two, and the stamping rib positions are symmetrically arranged on two sides of the reinforcing part.

Optionally, the battery positive electrode shrapnel is integrally formed, the joint of the support plate and the elastic arm is in smooth transition, and the joint of the support plate and the welding plate is in smooth transition.

The utility model discloses an embodiment has still disclosed a car key, contains the anodal shell fragment of arbitrary battery in the aforementioned embodiment.

Optionally, the automobile key further comprises a circuit board and a power supply, wherein a negative electrode elastic sheet is arranged on the circuit board, the negative electrode elastic sheet comprises four negative electrode elastic arms and is suitable for being in contact with a negative electrode of the power supply, and the four negative electrode elastic arms are arranged in pairwise symmetry.

Optionally, the automobile key further comprises a circuit board and a power supply, a negative electrode elastic sheet is arranged on the circuit board, the negative electrode elastic sheet comprises three negative electrode elastic arms and is suitable for being in contact with a negative electrode of the power supply, two shorter negative electrode elastic arms are arranged on the same side, the other longer negative electrode elastic arm is arranged on the other side, and the three negative electrode elastic arms are of two broken line types.

Drawings

Fig. 1 is a structural diagram of a battery positive electrode spring plate in the prior art;

fig. 2 is a schematic diagram illustrating a battery positive electrode tab after welding and assembling in the prior art;

fig. 3 is a structural diagram of a battery positive electrode spring piece according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a battery positive electrode tab according to an embodiment of the present invention after being welded and assembled;

fig. 5 is a schematic view of a battery according to another embodiment of the present invention after being assembled by welding.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 shows the structure diagram of a battery positive pole shell fragment among the prior art, fig. 2 shows the schematic diagram after the battery positive pole shell fragment welding equipment among the prior art, fig. 3 shows the structure diagram of a battery positive pole shell fragment of an embodiment, fig. 4 shows the utility model discloses a schematic diagram after the battery positive pole shell fragment welding equipment of an embodiment. For convenience of illustration, in fig. 1-4, the X direction is shown as a first direction, the Y direction is shown as a second direction, and the Z direction is shown as a third direction.

As shown in fig. 3 and 4, an embodiment of the present invention provides a battery positive spring plate 2 for connecting a power supply 3 and a circuit board 4, including: a support plate 21, the support plate 21 extending in the first direction X; a pair of elastic arms 22, the elastic arms 22 are provided with a first end and a second end, the first end is used for contacting with the anode of the power supply 3, and the second end is fixed with the support plate 21; the welding plate 23 is fixed with the support plate 21 and extends along the first direction X, at least two through holes 24 are formed in the welding plate 23, a containing part surrounded by the support plate 21, the elastic arm 22 and the welding plate 23 is used for containing a part of the power supply 3, and the welding plate 23 is suitable for being sucked by the surface mounting equipment.

As shown in fig. 1 and fig. 3, the utility model discloses a technical scheme has saved punching press contact 122 and punching press hole 121 on the contact arm 12 of shell fragment 1 among the prior art, and when installation power 3, elastic arm 22 opens the back, the first end of elastic arm 22 with can with the periphery wall contact cooperation of power 3, still can be connected with power 3's positive pole contact reliably and steadily, simple structure, it is convenient to make, has practiced thrift manufacturing cost. The utility model discloses a technical scheme, welded plate 23 extends along first direction X for welded plate 23 both can be used for welding with circuit board 4, has the plane that is suitable for the sucking disc absorption of the surface mounting equipment in the SMT technology again, and need not to set up intermediate junction plate 11 and be used for the SMT technology like that figure 1 is shown, and the structure is simpler, and it is convenient to make. Set up a plurality of through-holes 24, when the anodal shell fragment 2 of battery sent to the reflow oven with circuit board 4 and heat together, the solder paste that melts can climb into in the through-hole 24, increased and climbed tin area to welded intensity has been improved, makes the welding more reliable. Different from the prior art in fig. 1 in which the elastic arm supporting structure is bent for multiple times to form a square shell structure, the supporting plate 21 in the technical scheme has a simple structure, reduces the volume of the battery anode elastic sheet 2, and is convenient to manufacture. Meanwhile, since the intermediate connection plate 11 in fig. 1 is omitted in the present technology, the enclosed accommodating portion can be used for accommodating a part of the power supply 3 under the mutual cooperation of the support plate 21, the elastic arm 22 and the welding plate 23. As shown in fig. 1-4, that is, in the space above the welding plate 23 (fig. 2 shows the Z direction), after the power supply 3 is installed, the power supply 3 may cover a part of the welding plate 23 in the space, and compared to the prior art in which the welding plate 13 and the power supply 3 are not overlapped, and the welding plate 13 is located outside the power supply 3, the battery positive electrode spring piece 2 disclosed in the present technical solution saves space and reduces volume. For example, when the anodal shell fragment of battery is applicable to CR2032 button cell, adopt the technical scheme of the utility model, can shorten the distance from prior art's 15.7mm to the battery center with the anodal shell fragment of battery along second direction Y, can be applied to on the higher design of space requirement. The utility model discloses not prescribing a limit to the concrete size of the anodal shell fragment of battery 2, can be different and carry out the adaptability modification according to the 3 models of power that are suitable for, but can understand, to the anodal shell fragment of battery 2 that is applicable to with model power 3, the utility model discloses a structure of anodal shell fragment of battery 2 can reduce the volume of the anodal shell fragment of battery 2 for the prior art homoenergetic.

By adopting the technical scheme, the battery anode elastic piece is simple in structure and convenient to process, the manufacturing cost is reduced, the production efficiency is improved, the occupied space of the battery anode elastic piece in the shell is saved, and the battery anode elastic piece can be applied to the design with smaller shell space, so that the battery anode elastic piece can be used for an automobile intelligent key with smaller internal space.

Another embodiment of the present invention provides a battery anode elastic sheet 2, wherein the head of the elastic arm 22 is provided with a bending section 221. As shown in fig. 3, the head of the elastic arm 22 is bent, and when the power supply 3 is mounted, the bent section 221 can be used as a guide, so that the mounting is convenient, and the elastic arm 22 can be in stable contact with the positive electrode of the power supply on the outer peripheral wall of the power supply 3.

The utility model discloses a further embodiment provides a anodal shell fragment 2 of battery, and through-hole 24 quantity is two. When the number of the through holes 24 is too large, the area of the welding plate 23 can be increased, and the quality control is not easy to carry out, so that the two through holes 24 are arranged, the control can be facilitated on the premise of ensuring the welding stability, and the manufacturing process is simplified.

Another embodiment of the utility model provides a battery positive pole shell fragment 2, the joining region of backup pad 21 and welding plate 23 is provided with punching press muscle position 25. As shown in fig. 3, punching press muscle position 25 extends second direction Y on welded plate 23, extends along third direction Z on backup pad 21, and the setting of punching press muscle position 25 has further increased the intensity of the anodal shell fragment 2 self of battery, can guarantee the security of the anodal shell fragment 2 of battery in transportation and power installation, prevents that the anodal shell fragment 2 of battery from warping, can guarantee again that the anodal shell fragment 2 of battery is indeformable in backup pad 21 after the installation. Alternatively, the welding plate 23 is provided with a first welding zone 231, an intermediate zone 232 and a second welding zone 233 in sequence along the first direction X, the intermediate zone 232 is provided with the reinforcement portion 26, and the reinforcement portion 26 extends along the second direction Y. The first welding area 231 and the second welding area 233 correspond to welding positions on the circuit board 4 respectively, the reinforcing portion 26 is arranged on the welding plate 23, and the reinforcing portion 26 can be in contact with the circuit board 4 in the process of installing the power supply 3 on the battery anode elastic sheet 2, so that an auxiliary supporting effect is achieved, the stress of welding spots is reduced, and the stability of the structure of the battery anode elastic sheet 2 is enhanced. Alternatively, the via holes 24 are symmetrically disposed on the first land 231 and the second land 233. The through holes 24 are symmetrically arranged on the first welding area 231 and the second welding area 233, which can enhance the structural stability and facilitate welding, and meanwhile, the middle area 232 is ensured to have a larger area, thereby further facilitating the sucking disc to suck the battery anode elastic sheet 2 in the SMT process. Optionally, the number of the punching rib positions 25 is two, and the punching rib positions are symmetrically arranged on two sides of the reinforcing part 26. Set up two punching press muscle positions 25 and be symmetrical in reinforcing part 26 both sides, be favorable to further promoting the intensity of battery positive pole shell fragment 2 self, avoid in the power 3 installation and after the power 3 installation, backup pad 21 atress warp.

The utility model discloses a still another embodiment provides a anodal shell fragment 2 of battery, as shown in fig. 3, anodal shell fragment 2 integrated into one piece of battery, backup pad 21 and elastic arm 22 junction rounding off, backup pad 21 and the rounding off of welding plate 23 junction. The battery anode elastic sheet 2 is an integrally formed sheet metal part, and the smooth transition of the joint of the support plate 21, the elastic arm 22 and the welding plate 23 is beneficial to preventing stress concentration, improving the structural stability of the battery anode elastic sheet 2 and prolonging the service life of the battery anode elastic sheet 2.

The embodiment of the utility model provides a still provide a car key, contain the anodal shell fragment 2 of battery in aforementioned arbitrary embodiment. The automobile key adopting the technical scheme has the advantages that the manufacturing and mounting processes are simple, the production cost is reduced, the occupied space is small, the requirement of miniaturization of the key shape can be met, and the manufactured automobile key is small in size and convenient to carry.

The utility model discloses a another embodiment still provides a car key, as shown in fig. 4, car key still includes circuit board 4 and power 3, is provided with negative pole shell fragment 41 on the circuit board 4, and negative pole shell fragment 41 contains four negative pole elastic arms, is suitable for and is connected with power 3's negative pole contact, and these four negative pole elastic arms bisymmetry sets up, guarantees the stability and the reliability of contact.

The utility model discloses a still another embodiment provides a car key, as shown in fig. 5, car key still includes circuit board 4 and power 3, is provided with negative pole shell fragment 41 on the circuit board 4, and negative pole shell fragment 41 contains three negative pole elastic arm, is suitable for to be connected with power 3's negative pole contact, and two shorter negative pole elastic arms set up in same one side, and another longer negative pole elastic arm sets up in the opposite side, and this three negative pole elastic arm is two sections broken lines types. Through setting up the negative pole elastic arm into two sections broken line types for in the power installation, when the distance between power 3 and circuit board 4 is very close, still can avoid each negative pole elastic arm to take place dual contact with the power, consequently can make electrical properties more stable.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (11)

1. The utility model provides a anodal shell fragment of battery for connect power and circuit board, its characterized in that includes:

a support plate extending in a first direction;

the elastic arms are provided with a first end and a second end, the first end is used for being in contact with the positive electrode of the power supply, and the second end is fixed with the supporting plate;

the welding plate, the welding plate with the backup pad is fixed, and follows the first direction extends, be provided with two at least through-holes on the welding plate, wherein the backup pad the elastic arm with the portion of holding that the welding plate encloses is used for holding a part of power, the welding plate is suitable for and is absorbed by surface mounting equipment.

2. The battery positive spring plate according to claim 1, wherein the head of the first end of the elastic arm is provided with a bent section.

3. The battery positive electrode tab of claim 1, wherein the number of the through holes is two.

4. The battery positive spring plate according to claim 1, wherein a connection area of the support plate and the welding plate is provided with a stamped rib position.

5. The battery positive electrode tab as set forth in claim 4, wherein the welded plate is provided with a first welding region, an intermediate region and a second welding region in this order along the first direction, the intermediate region being provided with a reinforcing portion extending along the second direction.

6. The battery positive electrode tab of claim 5, wherein the through-holes are symmetrically disposed on the first land and the second land.

7. The battery positive electrode spring plate according to claim 5, wherein the number of the punching ribs is two, and the punching ribs are symmetrically arranged on two sides of the reinforcing part.

8. The battery positive electrode tab according to any one of claims 1-7, wherein the battery positive electrode tab is integrally formed, the junction of the support plate and the elastic arm is smoothly transitioned, and the junction of the support plate and the welding plate is smoothly transitioned.

9. An automobile key, characterized by comprising the battery positive electrode tab according to any one of claims 1 to 8.

10. The automobile key of claim 9, further comprising a circuit board and a power supply, wherein the circuit board is provided with a negative electrode spring piece, the negative electrode spring piece comprises four negative electrode elastic arms suitable for being in contact with a negative electrode of the power supply, and the four negative electrode elastic arms are arranged in a pairwise symmetry manner.

11. The automobile key of claim 9, further comprising a circuit board and a power supply, wherein the circuit board is provided with a negative electrode spring, the negative electrode spring comprises three negative electrode elastic arms suitable for contacting with a negative electrode of the power supply, two shorter negative electrode elastic arms are arranged on the same side, the other longer negative electrode elastic arm is arranged on the other side, and the three negative electrode elastic arms are of two-segment broken line type.

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